HomeMy WebLinkAbout37139-ZTown of Southold Annex
P.O. Box 1179
54375 Main Road
Southold, New York 11971
1/28/2013
CERTIFICATE OF OCCUPANCY
No: 36122
THIS CERTIFIES that the building SOLAR PANEL
Location of Property: 33000 Route 25, Orient,
Date: 1/25/2013
SCTM #: 473889 Sec/Block/Lot: 19.-1-14.5
Subdivision: Filed Map No.
conforms substantially to the Application for Building Permit heretofore
3/26/2012 pursuant to which Building Permit No.
was issued, and conforms to all of the requirements of the applicable provisions of the law. The occupancy for
which this certificate is issued is:
Ground Mounted Solar Panels as applied for
Lot No.
filed in this officed dated
37139 dated 4/13/2012
The certificate is issued to
Baker, Charles & Baker, Laura
(OWNER)
of the aforesaid building.
SUFFOLK COUNTY DEPARTMENT OF HEALTH APPROVAL
ELECTRICAL CERTIFICATE NO.
PLUMBERS CERTIFICATION DATED
37139 07-09-2012
TOWN OF SOUTHOLD
BUILDING DEPARTMENT
TOWN CLERK'S OFFICE
SOUTHOLD, NY
BUILDING PERMIT
(THIS PERMIT MUST BE KEPT ON THE PREMISES
WITH ONE SET OF APPROVED PLANS AND SPECIFICATIONS
UNTIL FULL COMPLETION OF THE WORK AUTHORIZED)
Permit #: 37139
Permission is hereby granted to:
Baker, Charles & Baker, Laura
PO BOX 394
Orient, NY 11957
Date: 4/13/2012
To:
construct two ground mounted Solar Panels as applied for
At premises located at:
33000 Route 25, Orient
SCTM # 473889
Sec/Block/Lot # 19.-1-14.5
Pursuant to application dated
To expire on 10/13/2013.
Fees:
3/2612012 and approved bythe Building Inspector.
ALTERATION OF ACCESSORY BUILDINGS
CO - ACCESSORY BUILDING
ELECTRIC
Total:
$200.00
$50.00
$100.00
$350.00
Building Inspector
Form No, 6
TOWN OF SOUTHOLD
BUILDING DEPARTMENT
TOWN HALL
765~1802
APPLICATION FOR CERT[FICATE OF OCCUPANCY
This application must be filled in by typewriter or ink and submitted to the Building Department with the following:
A. For new building or new use: I. Final survey of property with accurate location of all buildings, property lines, streets, and unusual natural or
topogmphic features.
2. Final Approval from Health Dept. of water supply and sewerage-disposal (S~9 form).
3. Approval of electrical installation from Board of Fire Underwriters.
4. Sworn statement from plumber certifying that the solder used in system contains less than 2/10 of 1% lead.
5. Commercial building, industrial building, multiple residences and similar buildings and installations, a certificate
of Code Compliance from architect or engineer responsible for the building.
6. Submit Planning Board Approval of completed site plan requirements.
B. For existing buildings (prior to April 9, 1957) non-conforming uses, or buildings and "pre-existing" land uses:
1. Accurate survey'of property showing all property lines, streets, building and unusual natural or topographic
features.
2. A properly completed application and consent to inspect signed by the applicant. Ifa Certificate of Occupancy is
denied, the Building Inspector shall state the reasons therefor in writing to the applicant.
C. Fees I. Certificate of Occupancy - New dwelling $50.00, Additions to dwelling $50.00, Alterations to dwelling $50.00,
Swhmning pool $50.00, Accessory building $50.00, Additions to accessory building $50.00, Businesses $50.00.
2. Certificate of Occupancy on Pre-existing E~uiIding - $100.00
3. Copy of Certificate of Occupancy - $.25
4. Updated Certificate of Occupancy - $50.00
5. Temporary Certificate of Occupancy - Residential $15.00, Commercial $15~00
Hew Construction:
.Location of Property:
Date
Old or Pre-existing Building:
House No. Street
Owner or Owners o f Proporty: C ~ ~LO,~(-~~ ~
suffolk Coun~ T~ M~ No 1000, S~tion .. ~ ~
Subdivision
Health DepL Approval:
Planning Board Approval.
Date of Permit.
(check one)
"am,et
Filed Map. Lot:
Applicant:
Underwriters Approval:
Final Certificate:
(check one)
Town Hall Annex
54375 Main Road
P.O. Box 1179
Southold, NY 11971-0959
Telephone (631 ) 765-1802
Fax (631 ) 765-9502
ro.qor, richert~.town.southold.n¥.us
BUILDING DEPARTMENT
TOWN OF SOUTHOLD
CERTIFICATE OF ELECTRICIAL COMPLIANCE
SITE LOCATION
ssued To: Charles Baker
Address: 30000 Main Rd City: Odent St: NY Zip: 11957
Building Permit #: 37139 Section: Block: Lot:
WAS EXAMINED AND FOUND TO BE IN COMPLIANCE WITH THE NATIONAL ELECTRIC CODE
3ontractor: DBA: Go Solar License No: 35972-me
SITE DETAILS
Office Use Only
Residential I~ Ind°°r ~1 Basement l~ Service Only [~
Commerical Outdoor 1st Floor Pool
New Renovation 2nd Floor Hot Tub
Addition Survey Attic Garage
INVENTORY
Service 3 ph Hot Water GFCI Recpt
Main Panel A/C Condenser Single Recpt
Sub Panel A/C Blower Range Recpt
Transformer Appliances Dryer Recpt
Disconnect Switches Twist Lock
Other Equipment:
Ceiling Fixtures ~[~ HID Fixtures
Wall Fixtures U Smoke Detectors
Recessed Fixtures LJ CO Detectors
Fluorescent Fixture Pumps
Emergency Fixture Time Clocks
Exit Fixtures ~ TVSS
ground mount PHOTOVOLTAIC SYSTEM to include 32 Kyocera KD240 panels,
2-Power One PVI-3.6 inverters
Notes:
Inspector Signature:
Date: July 9 2012
81-Cert Electrical Compliance Form.xls
TOWN OF SOUTHOLD BUILDING DEPT.
765-1802
INSPECTION
]FOUNDATION 1ST [ ] ROUGH P?/LBG~
]FOUNDATION 2ND [ ] INS~JL~TION
]FRAMING / STRAPPING [/~FINAL
] FIREPLACE & CHIMNEY [ ] FIRE SAFETY INSPECTION
] FIRE RESISTANT CONSTRUCTION [ ] FIRE RESISTANT PENETRATION
] ELECTRICAL (ROUGH) [ I ELECTRICAL (FINAL)
REMARKS:
DATE ~ ~=~
ROY ERLANDSON, P.E.
NORTHPORT, N~E. qW~ YORK 11768
631 757 5752
JAN 21t ::4)B
November 24, 2012
Town of Southold
Town Hall
Southold, New York 11971
Attention: Plans Examiner
Subject:
Certification for Solar Panel Installation for:
Charles & Laura Baker
33000 Main Road
Orient Point, New York 11957
Permit # 37139
An onsite inspection shows that the PV installation under permit number 37139
was perfOrmed as per previously submitted design specifications and meets the
following:
· Design criteria for the Town of Southold in conformance with RC301.1 of
NYS BC and ASCE 7-02 (120 mph) wind.
· The mounting brackets and hardware meet or exceed NYS Code
requirements for the design criteria for the Town of Southold.
· The actual in field attachments meet or exceed NYS Residential Building
Code requirements and ASCE-7.
Roy Eflandson, P.E.
Professional Engineer
TOWN O,F SOUTHOLD
BUI~LDING DEPARTMENT
TOWN HALL
SOUTHOLD, NY 11971
TEL: (631) 765-1802
FAX: (631) 765-9502
SoutholdTown.NorthFork.net
PERMIT NO.
Examined
Approved
Disapproved a/c
BUILDING PERMIT APPLICATION CHECKLIST
Do you have or need the following, before applying?
Board of Health
4 sets of Building Plans
Planning Board approval
Survey
Check
Septic Form
N.Y.S.D.E.C.
Trustees
Flood Permit
Storm-Water Assessment Form
Contact:
Mail to:
Expiration lO]t~20 1~ /9 ,n Phone:
'~!~ 9~_2~tPPLICATION FOR BUILDING PERMIT
~--f- ~ ~ Date
INSTRUCTIONS
,20 tZ.
a. This application MUST be completely filled in by typewriter or in ink and submitted to the Building Inspector with 4
sets of plans, accurate plot plan to scale. Fee according to schedule.
b. Plot plan showing location of lot and of buildings on premises, relationship to adjoining premises or public streets or
areas, and waterways.
c. The work covered by this application may not be commenced before issuance of Building Permit.
d. Upon approval of this application, the Building Inspector will issue a Building Permit to the applicant. Such a permit
shall be kept on the premises available for inspection throughout the work.
e. No building shall be occupied or used in whole or in part for any purpose what so ever until the Building Inspector
issues a Certificate of Occupancy.
f. Every building permit shall expire if the work authorized has not commenced within 12 months after the date of
issuance or has not been completed within 18 months from such date. If no zoning amendments or other regulations affecting the
property have been enacted in the interim, the Building Inspector may authorize, in writing, the extension of the permit for an
addition six months. Thereafter, a new permit shall be required.
APPLICATION IS HEREBY MADE to the Building Department Ibr the issuance ora Building Permit pursuant to the
Building Zone Ordinance of the Town of Southold, Sufiblk County, New York, and other applicable Laws, Ordinances or
Regulations, for the construction of buildings, additions, or alterations or for removal or demolition as herein described. The
applicant agrees to comply with all applicable laws, ordinances, building code, housing code, and regulations, and to admit
authorized inspectors on premises and in building for necessary inspections.
- (S~nature of applicant or name, ifa c~rporal~on)
(Mailing ad&ess ~f applicaht) "
State whether applicant is owner, lessee, agent, architect, engineer, general contractor, electrician, plumber or builder
Name of owner of premises
(As on the tax roll or latest deed)
If applicant is a corporation, signature of duly authorized officer
(Name and title of corporate officer)
Builders License No.
Plumbers License No.
Electricians License No.
Other Trade's License No.
3 7 a, . rnL
1. Location of land on which proposed work will be done;
5 ooo
House Number S~reet Hamlet
County Tax Map No. 1000 Section I ~ Block 0
Subdivision 0yS~[g )0~5 Filed Map No. ~.
State existing use and occupancy of premises and intended use and occupancy of proposed construction:
a. Existing use and occupancy ¢,e~
b. Intended use and occupancy
Nature of work (check which applicable): New Building_
Repair Removal Demolition
Estimated Cost
If dwelling, number of dwelling units
If garage, number of cars
Fee
Addition Alteration
Other Work ~v?ldt~ ~ ~ti~
(To be paid on filing this application)
Number of dwelling units on each floo~
6. If business, commercial or mixed occupancy, specify nature and extent of each type of use>,~
7. Dimensions of existing structures, if any: Fro~t5,~& 'J~ve'~/4k Rear .Depth
Height. Number of Stories I.JR
Dimensions of same structure with alterations or additions: Front
Depth_ Height ~'
8. Dimensions ofentirenew construction: Front q~t t Rear
Height ~'/Ir Number of Stories ~ I
9. Size oflot: Front /oCO' Rear ~/~1~ Depth
Number of Stories
Rear
_Depth / 3 t "/'o-/a~.
10. Date of Purchase~ [~/~/~6[ I cf ~ 6, Name of Former Owner
11. Zone or use district in which premises are situated ~ e ~ ~ t~'a~
12. Does proposed construction violate any zoning law, ordinance or regulation? YES NO
13. Will lot be re-graded? YES NO -~ Will excess fill be removed from premises? YES~ NO~_/~
14. NamesofOwnerofpremisesE~16 ~a~4~ Address 53000
Name of Architect Address Phone No
NameofContractor ~0 ~[~ Of(~gt~,~c AddressgTX ~ PhoneNo.
15 a. Is this prope~y withfn 100 feet of a tidal wetland or a freshwater wetland? *YES NO
* IF YES, SOUTHOLD TOWN TRUSTEES & D.E.C. PERMITS MAY BE REQUIRED.
b. Is this properly within 300 feet of a tidal wetland? * YES __ NO
* IF YES, D.E.C. PERMITS MAY BE REQUIRED.
16. Provide survey, to scale, with accurate foundation plan and distances to property lines.
17. If elevation at any point on property is at 10 feet or below, must provide topographical data on survey.
18. Are there any covenants and restrictions with respect to this property? * YES__ NO/k/
· IF YES, PROVIDE A COPY.
STATE OF N..EW YORK)
~~. e~ being duly sworn, deposes and says that (s)he is the applicant
(Name of individual sign~g contract) above named, . .
(S)He is the ~'~/L&/L~--/ ~0'~ ~/
~ / (Contractor, Agent, Corporate Officer, etc.)
of said owner or owners, and is duly authorized to perform or have performed the said work and to make and file this application;
that all statements contained in this application are tree to the best of his knowledge and belief; and that the work will be
performed in the manner set forth in the application filed therewith.
Swo~ t_p before me ~hi~/q/~
day( [,~q,~ 20[c~
~ature of Applicant
Town of Southold
Erosion, Sedimentation & Storm-Water Run-off ASSESSMENT FORM
PROPERTY LOCATION: S.C.T.M.~ THE FOLLOWING ACTIONS MAY REQUIRE THE SUBMISSION OF A
STORM*WATER~ GRADING~ DRAINAGE AND EROSION CONTROL PLAN
~tdct $~on .~cx L~ (,ik i ~r~ BY A DESIGN PROFESSIONAL IN THE STATE OF N,,EW YORK.
SCOPEOI~WORK - PROPO~F_,D CONE'I'RU~riON ITEM# / WORKASSF.~MENT ] Yes No
a. Whet bHhe Tofal Ama of the Pmjeof Parsals?
(Include Tofal Ama of all Parcels located within '~ Wi!I this Pr°ject Retath NI Sbxm'Watsr Ran-Off
theScopeofWorkforPropeasdCo~stmcC~n) ~0,00~)4~,/~, Genemted by a Two (2') lnch Ralnfall on SIte?
b. Whet is the Tofal Area of Land Clear~ng (S.F. I ~) (This Item wi# Include all mn-off created by site
c~aflng and/or constmc~on actMtles aa wel; as all
and/or Ground DIslurbance for the proposed Site Improvements and the permanent creation of
construction activfly? impervious surfaces.)
· IS.~.~,,=) 2Does the Sits Plan and/or Survey Show NI Proposed
PRO1/]D;. E~J~F P~Oj'ff~'T DY~'KE'TiON ~ ~ # ~ Drainage Structures Indicating Size & Location? q~is
Item shell include all Pro~x~sed Grade Changas and
~, and sadlmant control practices that will be used to
) ~,,,~/ll.,v~ . . control site erosion and storm water discharges. This --
~.~/~)~ a J~ /~[//"~,¢ O$-S ,'/~v~iL~ itemmuetbemaiofainedthroughoettheEr~llre
~;0/~u~¢~ae~& ~'4 Wiil this Project Require any Land Filling. Grading or
' Existing Grade Involving more than 200 Cubic Yards
of Material within any Parcel?
5 Will this APPlication Require Land Disturbing Activities r'~
Encompassing an Area in Ex~s of Five Thousand
(5,000 S.F.) Square Feet of Ground Surface?~-- --
6 is there a Natural Water Course Running through the
Site? Is this Project within the Trustees jurisdiction
I General DEC SWPPP Requirements: or within One Hundred (100') feet of a Wetland or.
dlaturpences~e(1)ormomacms; ir~udi~g dbtudoances of less than one acre that 7 Witl there he Site preparation on Existing Grade SIopes
are pert o~ a lamer ccmrnon plan that will ultime ~ely distu~ one or more acres Gl' la~]; which Exceed Fifteen (15) feet of Ver~cal Rise to
incJuo'mg Cons~ct~n actlvitlas invol~ing soil disturbances of less than one (1) acre where One Hundred (100') of Hndzantel Distence?
the DEC has delarmthe~ that a SPOES petmlt la required fo~ stom~ water discharges.
SINpPP*s Shall meet the Miniature Requirements of the SPDES General Pemtlt 8 Will Driveways, Parking Areas or other Impervious
for Storm Water Discharges front Co~atmctlon acUvlty - Permit No. GP-0-t0-OOl .) Surfaces be Sloped to Direct Storm-Water RumOff
1. The SWPPP shatl be Ixepemd pricx to the subn~lal of the NOI. 'file ~1OI shall be
subnated to the Depertme~ jxior la the comme~cemant of ~ eetfrity, into andlor in the dimclton of a Town right-of-way?
2. '11~ SWPPP Ntatl hascr~e the erosion end sediment oontml ixac~:es and where 9 Will this Project Require the Placement of Meterial.
STATE OF NEW YORK, ~ / t /} ~ ·
'll~at I ........ ~~~~ b~ing duly ~wo, depose, and ~a that he/~be i~ the applicant for Perrm[,
Owner ~nd/or represen~.tiYe of the Owner or Owners, and i~ duly authorized m I~rrorm or have performed the ~aid work and to
make and l'de thi~ application; that all statemen~ contained in tiff, application are tree to the be~t ofhi~ lmowled~e and belief; and
that the work will be performed in the manner set £orda in the application filed herewith.
Sworn to be[o~'e
FORM- 06/10 .__ .~. O,V~S~9~O001~v
04/12/2012 10:24 FAX 18317783344 80 SOLAR INC. ~001/004
272 Mii~ Real
Rl~rhead NY 11901
Phone 631-727-2224
SOUthold Town Buildir
63%765-9502
631 765~1802
Bu~;~i-,~ permit for Cha~
33000 Main Road, Orier
X U~lent x For Review
· Cemm~
To Whom It May Concern:
The follOwing are the documen
Baker. The following attachm4
building permit.
Please let me know if ~here is a
Thank you,
Do~e Minnk;k
Thla facaYnlle and any a~lcflment~ may ¢ontal~
intended ~ ~is ~mimile. ff~ ~ ~
T~ ~ ~ ~is and all ~ ~
u~ dictum, u~, ~, or m
Department From.' Dot~e Minnick
(including cover)
Date: 4/12/2012
~s & Laura Baker
Point, NY 11957 oo:
[] Ple~*e ~ommaflt P~ Reply [] Ple,~ Re~
you requested for building permit for solar PV installation for Chet
are the engineem certifications that you needed to complete the
thing ase necessary.
confld~al or p~lvlleged lnfom~atlOn and a~e i~ended only for the use
tthe intanded recipient of thb facsimile, p~ase no~y t~e saner' by FAX or
a~lmlle and any ~ttachm~mts from your Wstem an¢l ~'rise..N1y
oduc*~, of this fac=mile or any at~c~ment, la prohibited and may be
Town Hall Annex
54375 Main Road
P.O. Box 1179
Southold, NY 11971-0959
Telephone (631 ) 765- ! 802
Fax (631) 765-9502
September 21,2012
BUILDING DEPARTMENT
TOWN OF SOUTI-IOLD
Charles & Laura Baker
PO Box 394
Orient, NY 11957
Re: 33000 Route 25, Orient
TO WHOM IT MAY CONCERN:
The Following Items Are Needed To Complete Your Certificate of Occupancy:
**Note: Need Certification from an Architect or Engineer stating that it meets NYS Building Code for
Wind Loa~d Requirements
v//Application for Certificate of Occupancy. (Enclosed)
Electrical Underwriters Certificate. (contact your electrician)
A fee of $50.00.
__ Final Health Department Approval.
__ Plumbers Solder Certificate. (All permits involving plumbing after 4/1/84)
__ Trustees Certificate of Compliance. (Town Trustees # 765-1892)
__ Final Planning Board Approval. (Planning # 765-1938)
__ Final Fire Inspection from Fire Marshall.
Final Landmark Preservation approval.
BUILDING PERMIT: 37139 - Solar Panels
Town Hall Annex
54375 Main Road
P.O. Box I 179
Southold, NY 11971-0959
Telephone (631) 765-1802
Fax (631) 765-9502
November 13, 2012
BUILDING DEPARTMENT
TOWN OF SOUTHOLD
Charles & Laura Baker
PO Box 394
Orient, NY 11957
Re: 33000 Route 25, Orient
TO WHOM IT MAY CONCERN:
The Following Items Are Needed To Complete Your Certificate of Occupancy:
***Need Certification from an Architect or Engineer stating that it meets NYS Building Code for Wind
Load ~,~(uirements
~/ Application for Certificate of Occupancy. (Enclosed)
__ Electrical Underwriters Certificate. (contact your electrician)
A fee of $50.00.
__ Final Health Department Approval.
Plumbers Solder Certificate. (All permits involving plumbing after 4/1/84)
__ Trustees Certificate of Compliance. (Town Trustees # 765-1892)
Final Planning Board Approval. (Planning # 765-1938)
Final Fire Inspection from Fire Marshall.
__ Final Landmark Preservation approval.
BUILDING PERMIT: 37139- Solar Panels
04/12/2012 10:24 FAX 16317783344 80 S0LAR INC, ~002/004
A. ILLUM HANSEN INC.
AM~Ji~AN INEJTITIJITE OF ~HITE~T~
Date
Ground MOunt PV System (I.c~d and Wind)
ce.ithaca, for;. ELECTRICAL
REQUIRED
Cl~le~ & Laura Baki~~ISPECTION
Main Read, Orient Point, NY 11957
-eouthold, Bui|dlng Daparlment
Town Hldl
Southoid, NY 44971
Att: Plane Examiner
ocCUPANCY OR
tJSE IS UNLAWFUL
~ecluired Icad capacity per aquare fo~.t ................... 67.91 lbs.
Il?amid Icad ~ 4.4 lbs + live Icad ~ 21] Lbs * pane! Icad ~ 2,91 Ib~)
'l~n onalle inspection mhowe that the FV System m~t. the f~llowlng:
a. De~ ~-'~erla tar Town of Southold In =mtfmmance with the R¢301.1 or A$CE7 (120 mph wind).
b. The atm--ture M strong enough ia suppMt lhe total Icad cipBGI~.
c. The mou~ting INackets and hardware meet or exceed NY5 Cocle requlremante forthe deslgr~, criteria
t~e Town Df Soutflold
,',,l , i~L~ ~.lJ '
d. The actual in f~d ~chme~ will W or ex,ed NYS i~e~al ~e~uiwn~.~ z/A~
FEE ~. BY~
Sincerely,
Arthur Ilhafl Hansen
NOTIFY BUILDING DEPARTMENT AT
765-1802 8 AM TO 4 PM FOR THE
FOLLOWING INSPECTIONS:
1, FOUNDATION - TWO REQUIRED
FOR POURED CONCRETE
2 ROUGH-FRAMING, PLUMBING,
STRAPPING, ELECTRICAL & CAULKING
3. INSULATION
4 FINAL - CONSTRUCTION & ELECTRICAL
MUST BE COMPLETE FOR C·O.
ALL CONSTRUCTION SHALL MEET THE
REQUIREMENTS OF THE CODES OF NEW
YORK STATE. NOT RESPONSIBLE FOR
DESIGN OR CONSTRUCTION ERRORS,
19 SALTAIRI::: PLACE NORTHPORT NEW YORK 11768 (~:~) 261-3434
Charles & Laura Baker
33000 Main Road
Orient Point, NY 11957
Weight per unit Quantity Total weight Panel surface Weight per
area Sq.ft.
Lbs. # Lbs. Sq.ff. Lbs./Sq.ft.
PV Modules 46.30 32 1,481
Rails (fi,) 0.9949 139 137.96
L-Feet 0.1578 35 5.47
Total 1,625.03 559,00 I 2.91
Charles & Laura Baker
33000 Main Road FRONT VIEW
Orient Point, NY 11957
4
520"
Solar Modules
128" '~
$12"
I'
solar
panel
rails
points of
attachment to
4 620" k
~ II II II II II
4---128"~
4 512" ~"
Similar
Installltiall
PROFILE VIEW
A- Legs
B - Bracket
C - L-Foot
D - 4" X G' Treated Wood
E - Concrete Footing
6'11"
A
Solar Modules
(13' total)
8":
Level
Ground Level
]~
8":
James A. Marx, Jr. P.E.
North Winds Center
High Momatain Road
Ringwood, NJ 07456
E-mail: jamlight~bellatlantic.net
June 15, 2011
Unirac, Inc.
1411 Broadway Blvd. NE
Albuquerque, NM 87102
To: Building Department or Others:
RE: Engineer's Notice of Evaluation for UniRac SolarMounffM
Universal PV Module Mounting System
Dear Sir:
I have reviewed Unirac SolarMotmtTM "Code-Compliant Installation Manual 227",
copyright February 2008 and certify that the information and results are accurate. To
determine the design level forces, the appropriate wind speed shall be determined as
prescribed by local jurisdiction requirements and applied in accordance to the New York
State Residential Code -2010 or New York State Building Code -2010. These building
codes require that wind loading be determined based upon ASCE 7-05 and Unirac's
Manual 227 utilizes ASCE 7-05 that matches Method 1 for which Unirac Table 2 is
based upon, that which is dependent upon conditions of spatial form, height and other
structure parameters that are specified in the code provisions for determining the applied
wind loading pressures imposed onto the Unirac SolarMountTM rails supporting solar
panels. The SolarMounffM railing and anchorage requirements for the installation are
properly represented in the Installation Manual 227.
For other conditions, the determination of wind pressures should be determined by the
aforementioned New York State Building Code and ASCE 7 procedures.
James A. Marx, Jr. PE
Page 2 of 2
The design verification is based on:
I. ASCE7-02/05 - ASCE Standard
II. "Steel Construction Manual," 13th Ed., American Institute of Steel
Construction, Chicago, IL, 2005.
III. "Aluminum Design Manual", The Aluminum Association, Washington D.C.,
2005.
IV. Mechanical Properties and Static Load Testing of Unirac extruded rails and
related components obtained from Dr. Walter Gerstle, PE, Department of
Civil Engineering, University of New Mexico, Albuquerque, NM
Use:
Unirac SolarMountTM is evaluated for use in locations where wind pressure requirements
do not exceed 50 psf or snow load conditions do not exceed 45 psf ground snow loads.
For loading in excess of either of the above stated conditions, Unirac, Inc. should be
contacted for suitability of installation.
By this letter, I certify that the Unirac SolarMountTM assembly, when installed in
accordance with the Installation Manual 227 will meet the requirements of the building
codes adopted by New York State. Others should evaluate the structure to which the
Unirac SolarMountTM system is to be connected on a case-by-case basis, per Part I -
Installer's Responsibilities of the Installation Manual, to ensure its adequacy to accept
attachments and to support all applied loadings per the building code.
Please call me if you have any questions or concerns.
Sincerely,
James A. Marx, Jr. PE
P fe i 1 E gi
10 High Mountain Road
Ringwood, NJ 07456
(908-557-6080)
Professional Engineer License 56467
cc: James Madrid, Unirac, Inc.
SOLARMOUNT
Code-Compliant Installation Manual 227.3
U.S. Des. Patent No. D496,248S, D496,249S. Other patents pending.
Table of Contents
i. Installer's Responsibilities ................................................................. 2
Part I. Procedure to Determine the Design Wind Load ........................................... 3
Part II. Procedure to Select Rail Span and Rail Type ............................................. 10
Part lIl. Installing SolarMount
[3.1.] SolarMount rail components ................................................ 14
[3.2.] Installing SolarMount with top mounting clamps ............................... 15
[3.3.] Installing SolarMounr with bottom mounting clips ............................. 21
[3.4.]Installing SolarMount with grounding clips and lugs ............................ 25
,.'-'-'U N I RAC
A HILTI GROUP COMPANY
Unirac welcomes input concerning the accuracy and user-friendliness of this publication. Please write to pub[lear:ions @unirae.eom.
d"UNIRAC' Unirac Code-Compliant lnstallation Manual
SolarMount
i. Installer's Responsibilities
Please review this manual thoroughly before installing your
SolarMount system.
This manual provides (1) supporting documentation for
building permit applications relating to Unirac's SolarMount
Universal PV Module Mounting system, and (2) planning and
assembly instructions for SolarMount
SolarMount products, when installed in accordance with
this bulletin, will be structurally adequate and will meet
the structural requirements of the IBC 2009, ASCE 7-05
and California Building Code 2010 (collectively referred to
as "the Code"). Unirac also provides a limited warranty on
SolarMount products (page 26).
SolarMount is much more than a product.
It's a system of engineered components that can be assembled
into a wide variety of PV mounting structures. With
SolarMount you'll be able to solve virtually any PV module
mounting challenge.
It's also a system of technical support: complete installation
and code compliance documentation, an on-line SolarMount
Estimator, person-to-person customer service, and design
assistance to help you solve the toughest challenges.
This is why SolarMount is PV's most widely used mounting
system.
The installer is solely responsible for:
· Complying with ail applicable local or nationaJ building codes,
including any that may supersede this manual;
· Ensuring that Unirac and other products are appropriate for
the particular installation and the installation environment;
· Ensuring that the roof, its rafters, connections, and other
structural support members can support the array under all
code level loading conditions (this total building assembly is
referred to as the building structure);
· Using only Unirac parts and installer-supplied parts as
specified by Unirac (substitution of parts may void the
warranty and invalidate the letters of certification in all Unirac
publications);
· Ensuring that lag screws have adequate pullout strength and
shear capacities as installed;
· Verifying the strength of any alternate mounting used in lieu
of the lag screws;
· Maintaining the waterproof integrity of the roof, including
selection of appropriate flashing;
· Ensuring safe installation of all electrical aspects of the PV
array;
· Ensuring correct and appropriate design parameters are
used in determining the design loading used for design of the
specific installation. Parameters, such as snow loading, wind
speed, exposure and topographic factor should be confirmed
with the local building official or a licensed professional
engineer.
SolarMount
Unirac Code-Compliant lnstallation Manual '#UNIRA£'
Part I. Procedure to Determine the Design Wind Load
[1.1.] Using the Simplified Method - ASCE 7-05
The procedure to determine Design Wind Load is specified
by the American Society of Civil Engineers and referenced in
the International Building Code 2009. For purposes of this
document, the values, equations and procedures used in this
document reference ASCE 7-05, Minimum Design Loads for
Buildings and Other Structures. Please refer to A$CE 7-05 if
you have any questions about the definitions or procedures
presented in this manual. Unirac uses Method 1, the
Simplified Method, for calculating the Design Wind Load for
pressures on components and cladding in this document.
The method described in this document is valid for flush, no
tilt, SolarMount Series applications on either roofs or walls.
Flush is defined as panels parallel to the surface (or with no
more than 3" difference between ends of assembly) with no
more than 10" space between the roof surface, and the bottom
of the PV panels.
This method is not approved for open structure calculations.
Applications of these procedures is subject to the following
ASCE 7-05 limitations:
1. The building height must be less than 60 feet, h < 60. See
note for determining h in the next section. For installations
on strocmres greater than 60 feet, contact your local Unirac
Distributor.
2. The building must be enclosed, not an open or patrially
enclosed structure, for example a carport.
3. The building is regular shaped with no unusual geometrical
irregularity in spatial form, for example a geodesic dome.
4. The building is not in an extreme geographic location such
as a narrow canyon or steep cliff.
$. The building has a flat or gable roof with a pitch less than 45
degrees or a hip roof with a pitch less than 27 degrees.
6. If your installation does not conform to these requirements
please contact your local Unirac distributor or a local
professional engineer.
If your installation is outside the United States or does not
meet all of these limitations, consult a local professional
engineer or your local building authority. Consult ASCE 7-05
for more clarification on the use of Method I. Lower design
wind loads may be obtained by applying Method II from ASGE
7-05. Consult with a licensed engineer if you want to use
Method II procedures.
The equation for determining the Design Wind Load for
eomponents and cladding is:
pnet (psf) ~ lK~d p.eao
pnet (psf) = Design Wind Load
= adjustment factor for building height and exposure category
Kzt = Topographic Factor at mean roof height, b (fi)
Importance Factor
pnetSO (psf) = net design wind pressure for Exposure B, at height
30feet, 1 - 1.0
You will also need to know the following information:
Basic Wind Speed = V (mph), the largest 3 second gust of wind in
the last 50years.
h (fi) = total roofheightforflat roof buildings or mean roof height
for pitched roof buildings
Roof Pitch (degrees)
This manual will help you determine:
Effective Wind Area (sf) = minimum total continuous area of
modules being installed (Step 2)
Roof Zone = the area of the roof you are installing the pv system
according to Step 3.
Roof Zone Dimension = a (fi) (Step 3)
Exposure Category (Step 6)
[1.2.] Procedure to Calculate Total Design Wind
The procedure for determining the Design Wind Load can be
broken into steps that include looking up several values in
different tables. Table 5 has been provided as a worksheet for
the following 9 steps (page 8)
Step 1: Determine Basic Wind Speed, V (rnph)
Determine the Basic Wind Speed, V (mph) by consulting your
local building department or locating your installation on the
maps in Figure 1, page 4.
Step 2: Detenntning Effective Wind Area
Determine the smallest area of continuous modules you will
be installing. This is the smallest area tributary (contributing
load) to a support or to a simple-span of rail. That area is the
Effective Wind Area, the total area of the fewest number of
modules on a run of rails. If the smallest area of continuous
modules exceeds 100 sqff, use 100sqff (See Table 2). If less,
round down to values available in Table 2.
4-'UNIRAC' Llnira¢ Code-Compliant Installation A4anual $olarMount
Figure 1. Basic Wind Speeds. Adapted and
applicable to ASCE 7-05. Values are nominal
design 3-second gust wind speeds at 33feet
above ground for Exposure Category C.
~)
(meters per second)
~40(~3)
Step 3: Determine Roof/Wall Zone
The Design Wi,d £oad w/Il vary based on where the
installation is located on a roof. Arrays maybe located in more
than one roof zone.
Using Table 1, determine the RoofZo,e Dimension Length, a
(ft), according to the width and height of the building on which
you are installing the pv system,
Table I. Determine RoofNVall Zone, dimension (a) according to building width and height
a = I 0 percent of the least horizontal dimension or 0.4h, whichever is smaller, but not less than either 4% of the least horizontal
dimension or 3 ft of the building.
Roof Least Horizontal Dimension fit)
Height(fi) I0 I$ 20 25 30 40 $0 60 70 80 90 I00 125 150 175 200 300 400 500
10 3 3 3 3 3 4 4 4 4 4 4 4 5 6 7 8 12 16 20
15 3 3 3 3 3 4 5 6 6 6 6 6 6 6 7 8 12 16 20
20 3 3 3 3 3 4 5 6 7 8 8 8 8 8 8 8 12 16 20
25 3 3 3 3 3 4 5 6 7 8 9 10 10 10 10 10 12 16 20
30 3 3 3 3 3 4 5 6 7 8 9 10 12 12 12 12 12 16 20
35 3 3 3 3 3 4 5 6 7 8 9 l0 12.5 14 14 14 14 16 20
40 3 3 3 3 3 4 5 6 7 8 9 10 12.5 IS 16 16 16 16 20
45 3 3 3 3 3 4 5 6 7 8 9 l0 12.5 15 17.5 18 18 18 20
S0 3 3 3 3 3 4 5 6 7 8 9 10 12.5 15 17.5 20 20 20 20
60 3 3 3 3 3 4 5 6 7 8 9 10 12.5 15 17.5 20 24 24 24
Source: ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, p. 41.
SolarMount
UniracCode-CompliantlnstallationManual a.'UNIRAC'
Btep 3: Determine Roof Zone (continued)
Using £oofZone Dimension Length, a, determine the roof zone
locations according to your roof type, gable, hip or monoslope.
Determine in which roof zone your pv system is located, Zone
1, 2, or 3 according to Figure 2.
Figure 2. Enclosed buildings, wall and roofs
Flat Roof
Hip Roof
h
Gable Roof ( 0 < 7°)
Gable Roof (7° < 0 < 45°
h
[ Interior Zones End Zones
Roofs - Zone I/VValls - Zone 4 Roofs - Zone 2/Walls - Zone 5
Source: ASC~/SF~ 7~5, Minimum Design Loads for Buildings and O~her Structures, Chapter 6, p. 41.
Corner Zones
Roofs - Zone 3
Step 4: Determine Net Design Wind lh'e. ssm'e, pnet~o (psf)
Using the Effective Wind Area (Step 2), Roof Zone Location
(Step 3), and Basic Wind Speed (Step 1), look up the
appropriate Net Design Wind Pressure in Table 2, page 6. Use
the Effective Wind Area value in the table which is smaller than
the value calculated in Step 2. If the installation is located on a
roof overhang, use Table 3, page 7.
Both downforce and uplift pressures must be considered
in overall design. Refer to Section II, Step 1 for applying
downforce and uplift pressures. Positive values are acting
toward the surface. Negative values are acting away from the
surface.
#~'Ul~i[~'~.'''""~--~' Ll. irac Code-Complia.tl. stallatio. Manual SolarMount
Table 2.. pn~30 (ps0 Roof andWall
90 I00 I I0 120 I~0 140 I$0 ! 70
I I0 5.9 -14.6 7.3 -18.0 8.9 -21.8 10.5 -25.9 12,4 -30.4 14.3 -35.3 16.5 -40.5 21.1 -52.0
I 20 5.6 -14.2 6.9 -17.5 8.3 -21.2 9.9 -25.2 11.6 -29.6 13.4 -34.4 15.4 -39.4 19.8 -50.7
~ I 50 5.1 -13.7 6.3 -16.9 7.6 -20.5 9.0 -24.4 10.6 -28.6 12.3 -33.2 14.1 -38.1 18.1 -48.9
~ I I00 4.7 -13.3 5.8 -16.5 7.0 -19.9 8.3 -23.7 9.8 -27.8 11.4 -32.3 13.0 -37.0 16.7 -47.6
'~ 2 I0 5.9 -24.4 7.3 -30.2 8.9 -36.5 10.5 -43.5 12.4 -51.0 14.3 -59.2 16.5 -67.9 21.1 -87.2
i 2 20 5.6 -21.8 6.9 -27.0 8.3 -32.6 9.9 -38.8 [I.6 -45.6 13.4 -52.9 15.4 -60.7 19.8 -78.0
0 2 50 5,1 -18.4 6.3 -22.7 7.6 -27.5 9.0 -32.7 10.6 -38.4 12.3 -44.5 14.1 -51.1 18.1 -65.7
'~ 2 100 4.7 -15.8 5.8 -19.5 7.0 -23.6 8.3 -28.1 9,8 -33.0 11.4 -38.2 13.0 .43.9 16.7 -56.4
'" 3 I0 5.9 -36.8 7.3 -45.4 8.9 -55;0 10.5 -65.4 12.4 -76.8 14.3 -89.0 16,5 -102.2 21.1 -131.3
3 20 5.6 -30.5 6.9 -37.6 8,3 .45.5 9.9 -54.2 11.6 -63.6 13.4 -73.8 IS.4 -84.7 19.8 -108.7
3 50 5.1 -22.1 6.3 -27.3 7~6 -33.1 9.0 -39.3 10.6 .46.2 12.3 -53.5 14.1 -61.5 18.1 -78.9
3 I00 4.7 -15.8 5.8 -19.5 7.0 -23.6 8.3 -28.1 9.8 -33.0 11.4 -38.2 13.0 -43.9 16.7 -56.4
I I0 8.4 -13L3 10.4 -16.5 12.5 -19;9 14.9 -23.7 17.5 -27.8 20.3 -32.3 23.3 -37.0 30.0 -47.6
I 20 7.7 -13.0 9.4 -16.0 11.4 119.4 13.6 -23.0 16.0 -27.0 18.5 -31.4 21.3 -36.0 27.3 -46.3
~ I 50 6,7 -12.5 8.2 -15.4 I0.0 -I.86 11.9 -22.2 13~9 -26.0 16.1 -30.2 18.5 ~34.6 23.8 -44.5
~ I I00 5.9 -12.1 7.3 -14.9 8~9 -18.1 10.5 -21.5 12.4 -25.2 14.3 -29.3 16.5 -33;6 21.1 -43.2
~ 2 I0 8.4 .23.2 10.4 -28.7 12.5 -34,7 14.9 -4L3 17.5 -48.4 20.3 -56.2 23.3 ~.5 30.0 -82.8
~ 2 20 7.7 -21.4 9.4 -26.4 11.4 -31.9 13.6 -38.0 16.0 .44.6 18.5 -51.7 21.3 -59.3 27.3 -76.2
~. 2 50 6,7 -18~9 8.2 -23.3 I0.0 -28.2 11.9 -33.6 13.9 -39.4 16.1 -45.7 18.5 -52.5 23.8 -67.4
~ 2 I00 5.9 -17,0 7.3 -21.0 8.9 -28.5 [0.5 -30.3 12.4 -35,6 14.3 -41.2 16.5 -47~3 21.1 -60.8
~ 3 I0 8.4 -34.3 10.4 -42.4 12.5 -51.3 14.9 -61.0 17.5 -71.6 20.3 -83.1 23.3 -95.4 30.0 -122.5
3 20 7.7 -32.1 9.4 -39.6 11.4 -47.9 13.6 -57.1 16.0 -67.0 18.5 -77.7 21.3 .89.2 27.3 -I 14.5
3 50 6.7 -29.1 8.2 -36.0 I0~0 -43.5 11.9 -51.8 13.9 -60.8 16.1 -70.5 18.5 -81.0 23.8 -ID4.0
3 I00 5.9 -26.9 7.3 -33.2 8.9 .40.2 10.5 -47.9 12.4 -56.2 14.3 -65.1 16.5 -74.8 21.1 -96.0
I I0 13.3 -14.6 16.5 -18.0 19.9 -21.8 23.7 -25.9 27.8 -30.4 32.3 -35.3 37,0 -40.5 47.6 -52.0
I 20 13,0 -13.8 16.0 -17.1 19.4 -20.7 23.0 -24.6 27.0 -28.9 31.4 -33.5 36.0 -38.4 46.3 .49.3
~ I 50 12.5 -12.8 15.4 -15.9 18.6 -19.2 22.2 -22.8 26.0 -26.8 30.2 -31.1 34.6 -35.7 44.5 .45.8
~ I I00 12.1 -12.1 14.9 -14.9 18.1 -18.1 21.5 -21.5 25.2 -25.2 29.3 -29.3 33.6 -33.6 43.2 -43.2
~ 2 I0 13.3 -17.0 16.5 -21.0 19.9 ~25.5 23.7 -30.3 27.8 -35.6 32.3 -41.2 37.0 -47.3 47.6 -60.8
.e 2 20 13.0 -16.3 16.0 -20.1 19.4 -24,3 23.0 -29.0 27.0 -34.0 31.4 -39.4 36.0 -45.3 46.3 -58.1
~ 2 50 12.5 -15.3 15.4 -18.9 18.6 -22.9 22.2 -27.2 26.0 -37-0 30.2 -37.1 34.6 -42.5 44.5 -54.6
~ 2 I00 12.1 -14i6 14.9 -18.0 18.1 -21.8 21.5 -25.9 25.2 -30,4 29.3 -35.3 33.6 40.5 43.2 -52.0
~ 3 I0 13.3 -17.0 16.5 -21.0 19~9 ,25.5 23.7 -30.3 27.8 -35.6 32.3 -41.2 37.0 -47.3 47.6 -60.8
~ 3 20 13.0 -16.3 16.0 -20.1 19.4 '24.3 23.0 -29.0 27.0 ~34.0 31.4 -39.4 3&O -45,3 46.3 -58.1
3 50 12.5 -IS.3 15.4 -18.9 18.6 ,22.9 22.2 -27.2 26.0 -32.0 30.2 -37.1 34,6 -42.5 44.5 -54.6
3 I00 12.1 -14.6 14.9 -18.0 18.1 -2i.8 21.5 -25.9 25.2 -30.4 29.3 -35.3 33.6 -40.5 43.2 -52.0
4 I0 14.6 -15.8 18.0 -19.5 2118 -23;6 25.9 -28.1 30;4 -33.0 35.3 -38.2 40.5 -43.9 52.0 -56.4
4 20 13.9 -15.1 17.2 -18.7 20.8 -22.6 24.7 -26.9 29.0 -31.6 33.7 -36.7 38.7 -42.1 49.6 -54.1
4 50 13.0 -14.3 16.1 -17.6 19.S ~21.3 23.2 -25.4 27.2 -29.8 31.6 -34.6 36.2 '39.7 46.6 -51.0
4 i I00 12.4 -13.6 15.3 -16.8 18.5 -20.4 22,0 -24.2 25.9 -28.4 30.0 -33.0 34.4 -37.8 44.2 -48.6
4: 500 10.9 -12.1 13.4 -~4.9 16.2 -18,1 19.3 -21.5 22.7 -25.2 26.3 -29.3 30.2 -33,6 38.8 -43.2
I0 14.6 -19.5 18.0 -24.1 21.8 ~29.1 25.9 -34.7 30.4 .40.7 35.3 -47.2 40.5 -54.2 52.0 -69.6
i 55 20 13.9 -18.2 17.2 -22.S 20.8 -27.2 24.7 -32.4 29.0 -38.0 33.7 -44.0 38.7 -50.5 49.6 -64.9
~ 5 50 13.0 -16.5 16.1 -20.3 19:S -24.6 23.2 -29.3 27.2 -34.3 31.6 -39.8 36.2 -45.7 46.6 -58.7
5 I00 12,4 -15.1 15.3 -18.7 18.5 -22,6 22.0 -26.9 25.9 -31.6 30.0 -36.7 34.4 .42.1 44.2 -54.1
5 500 10.9 -12.1 13.4 -14.9 16.2 -18.1 19.3 -21.5 22.7 -25,2 26.3 -29.3 30.2 -33.6 38.8 -43.2
Source: A$C£1$EI 7-95, Minimum Design Loads for Buildings and Other Structures, Cho~ter 6, Figure 6-3, p. 42-43.
6
SolarMount Unirac Code-Com?liant lnstallation Manual '-PUNIRAC
Table 3. p~30 (psf) Roof Overhang
zo~ ~ 90 I00 ii0 120 I30 140 i50 170
~a 2 10 ~21.0 -25.9 ~31.4 -37.3 .43.8 -50.8 -58.3 -74.9
~ 2 20 -20.6 -25.5 -30.8 -36.7 -43.0 .49.9 -57,3 -73.6
~ 2 50 -20.1 -24.9 -30;I -35.8 -42.0 .48.7 '55;9 -71.8
'o 2 100 -19.8 -24.4 -29.5 -35.1 -41.2 .47.8 *54.9 -70.5
~ 3 10 -34.6 .42.7 -51.6 -61.5 -72.1 -83.7 .96,0 -123.4
o 3 20 -27.1 -33.5 -40.5 .48.3 -,56.6 -65.7 -75,4 -96.8
~ 3 50 -17.3 -21.4 -25.9 -30.8 -36.1 .41.9 ..48.1 -61.8
~o 3 100 -[0.0 -12.2 -14.8 -17.6 -20.6 -23.9 '27.4 -35.2
~ 2 10 -272 -33.5 -40.6 .48.3 -56.7 -65.7 ~75.5 -96.9
2 20 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 ~75.S -96.9
2 50 c27.2 -33.5 -40.6 -48.3 -56.7 -65.7 ~7$5 -96.9
~ 2 100 -27.2 -33.5 .40.6 -48.3 -56~7 -65.7 -75~ -96.9
~o 3 10 .45.7 -56.4 -68,3 -81.2 -95.3 -I 10.6 -12&9 -163.0
~' 3 20 .41.2 -50.9 -61.6 -73.3 -86.0 -99.8 ~11~[.5 -147.1
~ 3 50 -35.3 .43.6 -52.8 -62.8 -73.7 -85.5 ,98~1 -126.1
~o 3 100 ~30~9 -383 -46.1 -54.9 -64;4 -74.7 -85.8 -I 10.1
~ 2 10 -24.7 -30.5 -36.9 -43.9 -51.5 -59.8 ~8.6 -88.1
~ 2 20 ,24~0 -29.6 -35.8 -42.6 -50.0 -58.0 -85.5
· ~ 2 50 ,23;0 -28.4 -34~3 -40,8 -47,9 -55.6 ~.8 -82.0
~' 2 100 ~22.2 -27.4 -33.2 -39.5 -46;4 -53.8 -61.7 -79.3
~ 3 10 -24.7 -30.5 -36.9 .43.9 ,51.5 -59.8 .68.6 -883
~ 3 20 -24.0 -29.6 -35;8 -42.6 -S0.0 -58.0 ~.5 -85.5
~ 3 50 -23.0 -28.4 -34;3 -40.8 -47.9 -55.6 -63~8 -82.0
~o 3 100 -22.2 -27.4 -332 -39.5 -46.4 -53.8 -&l;7 -79.3
Source: A$C~./SF,/7~$, Alinimum Des/gn Loads for ~uildings and Ofaer 5tractures, Chepter 6, p. 44.
Step S: 1Determine the Topoffeaphi¢ Factor,/~t
For the purposes of this code compliance document, the
Topographic Factor, Kzt, is taken as equal to one (1), meaning,
the installation is surrounded by level ground (less than 10%
slope). If the installation is not surrounded by level ground,
please consult ASCE 7-05, Section 6.5.7 and the local building
authority to determine the Topographic Factor.
Step 6: Determine Exposure Category (B, C, D)
Determine the Exposure Category by using the following
definitions for Surface Roughness Categories.
The ASCE/SEI 7-05 defines wind surface roughness
categories as follows:
SURFACE ROUGHNESS B; is urban and suburban areas,
wooded areas, or other terrain with numerous closely
spaced obstvactions having the size of single family
dwellings.
SURFACE ROUGHNESS C: has open terrain with scat-
tered obstructions having heights generally less than
30 feet. This categoryindudes flat open country,
grasslands, and all water surfaces in hurricane prone
regions.
SURFACE ROUGHNESS D: has flat, unobstructed areas
and water surfaces outside hurricane prone regions.
This category includes smooth mud flats, salt flats, and
unbroken ice.
Also see ASCE 7-05 pages 287-291 for further explanation and
explanatory photographs, and confirm your selection with the
local building authority.
:PUNIRAC UniracCode-CompliantlnstallationManual SolarMount
Step 7: Determine adjustment factor for height and
exposure category, A
Using the Exposure Category (Step 6) and the roof height,
h (ft), look up the adjustment facwr for height and exposure in
Table 4.
Step 8: Determine the Importance Factor, I
Determine if the installation is in a hurricane prone region.
Look up the Importance Factor, 1, Table 6, page 9, using the
occupancy category description and the hurricane prone
region status.
Step 9: Calculate the Design Wind Load, Pnet (pst-)
Multiply the Net Design Wind Pressure,pnet3O (psf) (Step 4) by
the adjustment factor for height and exposure, ,t (Step 7),the
Topographic Factor, Kzt (Step 5), and the Importance Factor, 1
(Step 8) using the following equation, or Table 5 Worksheet.
]9net (psf) - iKzd p.eao
pnet (ps f) = Design Wind Load (lO psf minimum)
= adjustment factor for height and exposure category (Step 7)
Kzt = Topographic Factor at mean roof height, h 0~) (Step 5)
Importance Factor (Step 8)
pnet~O (psf) : net design wind pressure for Exposure B, at height =
30, I = 1 (Step 4)
Use Table S below to calculate Design Wind Load.
The Design Wind Load will be used in Part II to select the
pacing.
Table 4. Adjustment Factor (A) for Roof Height &
Exposure Category
h~r~ g C D
I S 1.00 1.21 1.47
20 1.00 1.29 1.55
2S 1.00 1.35 1.61
30 1.00 1.40 1.66
35 1.05 1.45 1.70
40 1.09 1.49 1.74
45 I.I 2 1.53 1.78
50 1.16 1.56 1.81
55 1.19 1.59 1.84
60 1.22 1.62 1.87
SEE ATTACHED APPENDIX A (ENGINEERING REPORT) FOR DATA AND CALCULATIONS
Buildin~ Height h ft
Building, Least Horizontal Dimension
Roof Pitch degrees
Exposure Category 6
Basic Wind ~ V mph I F~ure i
Effective Wind Area sf
Roof Zone Setback Len~nh a
Roof Zone Location
Net DesignWind Pressure pne~O
Topographic Factor Kzt
Adjustment factor for heisht and exposure category ~
Importance Factor I
Total Design Wind Load pnet
2
ft 3 Table I
3 Figure 2
psf 4 Table 2, 3
x 5
x 7 Table 4
x 8 Table 5
psf 9
8 SEE ATTACHED APPENDIX A (ENGINEERING REPORT) FOR
SolarMount IJniracCode-CompliantlnstallationManual -'?UNIRAC
Table 6. Occupancy Category Importance Factor
I Buildings and other Agricultural facilities 0.87 0.77
structures that Certain Temporary facilities
represent a Iow Minor Storage facilities
hazard to human life
in the event of failure,
including, but limited to:
All buildings and other
listed in Occupancy
Categories I, III, and IV.
Buildings and other Buildings where more than 300 people congregate
structures that Schools with a capacity more than 250 I.I 5 I.I S
III represent a substantial Day Cares with a capacity more than 150
hazard to human life in Buildings for colleges with a capacity more than 500
the event of a failure, Health Care facilities with a capacity more than 50 or
including, but not limited more resident patients
to: Jails and Detention Facilities
Power Generating Stations
Water and Sewage Treatment Facilities
Buildings that manufacture or house
hazardous materials
Buildings and other Hospitals and other health care facilities having I.I 5 I.I 5
IV as essential facilities, Fire, rescue, ambulance and police stations
including, but not limited Designated earthquake, hurricane, or other
to: emergency shelters
Designated emergency preparedness communication,
Power generating stations and other public utility
facilities required in an emergency
Ancillary structures required for operation of
Occupancy Category IV structures
emergency aircraft hangars
Water storage facilities and pump structures required
Buildings and other structures having critical national
defense functions
· '."~UNIRAC LlniracCode-CompliantlnstallationManual SolarMount
Part II. Procedure to Select Rail Span and Rail Type
[2.1.] Using Standard Beam Calculations, Structural Engineering Methodology
The procedure to determine the Unirac SolarMount series
rail type and rail span uses standard beam calculations and
structural engineering methodology. The beam calculations
are based on a simply supported beam conservatively, ignoring
the reductions allowed for supports of continuous beams over
multiple supports. Please refer to Part I for more information
on beam calculations, equations and assumptions. If beams
are installed perpendicular to the eaves on a roof steeper than
a 4/12 pitch in an area with a ground snow load greater than
30psf, then additional analysis is required for side loading on
the roof attachment and beam.
In using this document, obtaining correct results is
dependent upon the following:
1. Obtain the Snow Load for your area from your local building
official.
2. Obtain the Design Wind Load, pnet. See Part I (Procedure
to Determine the Design Wind Load) for more information on
calculating the Design Wind Load.
3. Please Note: The terms rail span and footing spacing
are interchangeable in this document. See Figure 3 for
illustrations.
4. To use Table 8, the Dead Load for your specific installation
must be less than 5 psf, including modules and Unirac racking
systems. If the Dead Load is greater than 5 psf, see your
Unirac distributor, a local stxuctural engineer or contact
Unirac.
The following procedure will guide you in selecting a Unirac
rail for a flush mount installation. It will also help determine
the design loading imposed by the Unirac PV Mounting
Assembly that the building structure must be capable of
supporting.
Step 1: Determine the Total Design Load
Figure 3. Rail span and footing
spacing are interchangeable.
The Total Design Load, P (psf) is determined using ASCE 7-05
2.4.1 (ASD Method equations 3,5,6 and 7) by adding the Snow
Load1, S (psf), Design Wind Load, pnet (psf) from Part I, Step 9
and the DeadLoad (psf). Both Uplift and Downforce Wind
Loads calculated in Step 9 of Part 1 must be investigated. Use
Table 7 to calculate the Total Design Load for the load cases.
Use the maximum absolute value of the three downforce cases
and the uplift case for sizing the raft. Use the uplift case only
for sizing lag bolts pull out capacities (Part II, Step 6). Use the
following equations or Table 7.
P (psf) = LOD + 1.OS1 (downforce case 1)
P (psf) = LOD + 1.0prier {downforce case 2)
P (psf) = 1.OD + O.?SS1 + 0.7Sprier (downforce case 3)
P (psf) = 0.6D + 1.0pnet (uplift)
D = DeadLoad (psf)
S = Snow Load (psf)
pnet = Design Wind Load (ps f) (Positive for down force, negative
for uplift)
The maximum Dead Load. D (osf). is 5 psfbased on market
research and internal data.
1 Snow Load Reduction - The snow load can be reduced according
to Chapter 7 of ASCE 7-05. The reduction is a function of the roof
slope, Exposure Factor, Importance Factor and Thermal Factor
Please refer to Chapter 7 of ASCE 7-OS for more information.
Note: Modules must be centered symmetrically on
the rails (+/- 2'), as shown in Figure 3.
SolarMount llniracCode-CompliantlnstallationManual -.v'UNIRAC'
Table 7. ASCE 7ASD Load Combinations
Dead Load D 1.0 x LOx 1.0 x psf
Snow Load S 1.0 x + 0.75 x + -- psf
DesignWind Load Pnet i/)X + 0.75x + psf
Total Design Load P psf
Note: Table to be filled out or attached for evaluation.
SEE ATTACHED APPENDIX A (ENGINEERING REPORT) FOR DATA AND CALCULATIONS
Step 2: Determine the Distributed Load on the rail,
w tpij9
Determine the Distributed Load, w (plf), by multiplying the
module length, B fit), by the Total Design Load, P (psf) and
dividing by two. Use the moximum absolute value of the three
downforce cases and the Uplift Case. We assume each module
is supported by two rails.
w- PB/2
Step 3: Deteemine Rail Sparb/ I.Foot Spacing
Using the distributed load, w, from Part II, Step 2, look up the
allowable spans, L, for each Unirac rail type, SolarMount (SM)
and SolarMount Heavy Duty (HD).
The L-Foot SolarMount Series Raft Span Table uses a single
L-foot connection to the roof, wall or stand-off. Please refer to
the Part III for more installation information.
tv = Distributed Load (pounds per linear foot, plf)
B = Module Length Perpendicular to Rails (ft)
P = Total Design Pressure (pounds per square foot, psf)
Table 8. L-Foot SolarMount Series Rail Span
· 'I'UNIRAC UniracCode-CornpliantlnstallationManual SolarMount
Step 4: Select Rail Type
Selecting a span and rail type affects the price of your
installation. Longer spans produce fewer wall or roof
penetrations. However, longer spans create higher point load
forces on the building structure. A point load force is the
amount of force transferred to the building structure at each
connection.
It is the installer's reanonsibilitv to verify that the buildin~
structure is stxong enoueh to sunoort the ooint load
forces.
Step 5: Determine the Downforee PointLoad, R (lbs),
at each connection based on rail span
When designing the Unirac Flush Mount Installation, you
must consider the downforce Point Load, R 0bs) on the roof
structure.
The Downforce, Point Load, R (lbs), is determined by
multiplying the Total Design Load, P (p¥) (Step 1) by the Rait
Span, L (ft) (Step 3) and the Module Length Perpendicular to
the Rails, B (ft) divided by two.
R (lbs) = PLB/2
R - Point Load (lbs)
P - Total Design Load (ps f)
L -- Rail Span 02)
B = Module Length Perpendicular to Rails (fi)
It is the installer's responsibility to verify that the building
structure is strong enough to support the maximum point
loads calculated according to Step 5.
Table I O. Downforce Point Load Calculation
Total Design Load (downforce) (max of case I, 2 or 3): P
Module length perpendicular to rails: B
Rail Span: L
Downforee Point Load: R
psf Step I
x ft
x ft Step 4
/2
lbs
SEE ATTACHED APPENDIX A (ENGINEERING REPORT) FOR DATA AND CALCULATIONS
SolarMount tlnirac Code-Compliant lnstallation Manual -" U N I RA C
Step 6: Determine the Uplift Point Load, R (lbs), at
each connection based on rail span
You must also consider the Uplift Point Load, R (lbs), to
determine the required lag bolt attachment to the roof
(building) structure.
~on
Total Design Load (uplift): P psf Step
Module length perpendicular to rails: B x ft
Rail Span: L x ft Step
/2
Uplift Point Load: R lbs
SEE ATTACHED APPENDIX A (ENGINEERING REPORT) FOR DATA AND CALCULATIONS
Table 12. Lag pullout (widxlrawa]) capacides (lbs) in ypica] roof lumber (ASD)
Lag screw specifications
Specific sA,,' sho/~*
gravis~ per inch thread depth
Douglas Fir, Larch 0.S0 266
Douglas Fir, South 0.46 235
Engelmann Spruce, Lodgepole Pine
(MSR 1630 f & higher) 0.46 233
Hem, Fir, Redwood (close gr~in) 0.43 212
Hem, Fir (North) 0.46 23S
Southern Pine O.SS 307
Spruce, Pine, Fir 0.42 205
Spruce, Pine, Fir
(E of 2 million psi and higher
grades of MSR and MEL) 0.S0 266
Thread
depth
Sources~'American Wood Council, ND$ 200$,Table I 1.2/L I L3.2A
Note~' (I) Thread must be embedded in the s~de grain of a rafter or other structural member integral with the
building structure.
(2) L~g be~ must be located in the middle third of the stru~ral member.
(3) These values ore not wild for wet serv/ce.
(4) This table does no! include shear copoci~es, if necessary, contac~ a Iocai engineer to specifiy log bott size
with regard to shear forces.
($) Install lag bo/ts with head and washer flush to surface (no ge/)). Do not over-torque.
(6) W~drawal des~gfl wlues for lag screw connect/ohS shall be mul~liod by applicable adjustment factors if
necessary. See Table I 0.3. I in the American ~bod Council ND$ for Wood Construc~on.
*Use flat washers w~h lag screws.
Use Table 12 to select a lag bolt
size and embedment depth to
satisfy your Uplift Point Load
Force, R (lbs), requirements.
Divide the uplift pointinad (from
Table 11] by the withdrawal
capacity in the 2nd column of
Table 12. This results in inches
:l thread
uplift force. If other than lag
bolt is used (as with a concrete
or steel), consult fastener mfr
documentation.
It is the installer's responsibility
to verify that the substructure
and attachment method is
strong enough to support the
maximum point loads calculated
according to Step 5 and Step 6.
:?UNIRAC' Unirac Code-Compliant lnstallation Manual SolarMount
Part III. Installing SolarMount
The Unirac Code-Compliant Installation Instructions support applications for building permits for
photovoltaic arrays using Unirac PV module mounting systems.
This manual, SolarMount Planning and Assembly, governs installations using the SolarMount and
SolarMount HD (Heavy Duty) systems.
[3.1.] $olarMount rail components
Figure 4. $olarMount standard rail components.
OR ail - Supports PV modules. Use two per row of
modules. Aluminum extrusion, anodized.
OR ail Joins and rail sections into
splice
aligns
single
length of rail. It can form either a rigid or thermal
expansionjoint, 8 inches long, predrilled. Aluminum
extrusion, anodized.
Self-dril~ng screw - (No. 10 x 3/4") - Use 4 per rigid
splice or 2 per expansion joint. Galvanized steel.
L-foot - Use to secure rails either through roofing
material to building structure or standoffs. Refer to
loading tables for spacing. Note: Please contact Unirac
for use and specification of double L-foot.
L-foot bolt (3/8" x 3/4") - Use one per L-foot to secure
rail to L-foot. Stainless steel.
Flange nut (3/8") - Use one per L-foot to secure rail to
L-foot. Stainless steel.
Flattop standoff (optional) (3/8") - Use standoffs to
increase the height of the array above the surface of the
roof or to allow for the use of flashings. Use one per
L-foot. One piece: Service Condition 4 (very severe)
zinc-plated-welded steel. Includes 3/8" x 3/4" bolt with
lock washer for attaching L-foot. Flashings: Use one per
standoff. Unirac offers appropriate flashings for both
standoff types.
Note: There is also a flange type standoff that does not
require an L-foot.
Aluminum two-piece standoff (optional) (4" and 7") -
Use one per L-foot. Two-piece: Aluminum extrusion.
Includes 3/8" x 3/4" serrated flange bolt with EPDM
washer for attaching L-foot, and two 5/16" lag bolts.
Lag screw for L-foot (5/16") - Attaches standoffto
rafter.
Top Mounting Clamps
Top Mounting Grounding Clips and Lugs
Installer supplied materials:
Lag screw for L-foot- Attaches L-foot or standoff to
rafter. Determine the length and diameter based on pull-
out values. If lag screw head is exposed to elements, use
stainless steel. Under flashings, zinc plated hardware is
adequate.
Waterproof roofing sealant - Use a sealant appropriate
to your roofing material Consult with the company
currently providing warranty of roofing.
SolarMount tlniracCode-CompliantlnstallationManual d~UNIRAC
[3.2.] Installing SolarMount with top mounting clamps
This section covers SolarMount rack assembly where the installer has elected to use top mounting clamps to secure modules to the
rails. It details the procedure for flush mounting SolarMount systems to a pitched roof.
SolarMount Rail
Mid Clamp
L-foot
End Clamp
SolarMount Rail
Figure 5. F~ploded view of a flushmount installation mounted with L-feet.
Table 13.Wrenches and torque
Wrench Recommended
size torque (fi-lbs)
'~" hardware ~" I 0 Ak
~a' hardware ~/~6" 30
Torques are not 4es/~na~e4 for use w~ worx/conneaors.
Top mounting damps and L-feet require fl~e use
All top down clamps and L-feet must be installed with
anti-se&e to prevent galling and prov/de uniformity
in clamp load. UniRac lnc recommends Silver
Grade LocTite Anti-$eize Item numbers: 38181,
80209,76732,76759,76764, 80206, and 76775, or
equivalent. 1/4'- 20 hardware used in conjunction
with top down clamps must be installed to 1 oft-lbs
of torque. When using UGC-1, UGC-2, WEEB 9.$ and
WEE8 6.7, 1/4"- 20 hardware must be installed to
l O ft-lbs of torque. Additionally, when used with
a top down clamp, the module frame cross section
must be boxed shaped as opposed to a single, l-shaped
member. Please refer to installation supplement 91 O:
Galling and 1ts Prevention for more information
on galling and anti-sei~e and installation manual
225: Top Mounting Unira~ Grounding Cl~$
and WRRBLngs for more information on Grounding
Clips.,
:PUNIRAC' Unirac Code-Com]~liant lnstallation Manual SolarMount
[3.2.1] Planning your SolarMount installations
The installation can be laid out with rails parallel to the rafters
or perpendicular to the rafters. Note that SolarMount rails
make excellent straight edges for doing layouts.
Genter the installation area over the structural members as
much as possible.
Leave enough room to safely move around the array during
installation. Some building codes require minimum clearances
around such installations, and the user should be directed to
also check 'The Code'.
The width of the installation area equals the length of one
module.
The length of the installation area is equal to:
· the total width of the modules,
· plus 1 inch for each space between modules (for mid-
clamp),
· plus 3 inches (l~h inches for each pair of end clamps).
Peak
Low-profile __
__ -- High-profile mode
mode
i -
I I I
Figure 6. Rails may be placed parallel or perpendicular to rafters.
SolarMount UniracCode-CompliantlnstallationManual a-'UNIRAC
[3.2.2] Laying out L-feet
L-feet (Fig. 7) can be used for attachment through existing
roofing material, such as asphalt shingles, sheathing or sheet
metal to the building structure.
Use Figure 8 or 9 below to locate and mark the position of the
L-feet lag screw holes within the installation area.
If multiple rows are to be installed adjacent to one another, it
is not likely that each row will be centered above the raft;ers.
Adjust as needed, following the guidelines in Figure 9 as
closely as possible.
Figure 7
--- Overhang 33% L max
~ Foot spacing/
Rail~pgp "L" /
Lower roof edge
Rafters
(Building Structure)
Figure 8. Layout with rails perpendicular to rafters.
Installing L-feet:
Drill pilot holes through the roof into the
center of the rarer at each L-foot lag screw
hole location.
Squirt sealant into the hole, and on the shafts
of the lag screws. Seal the underside of the L-
feet with a suitable sealant. Consult with the
company providing the roofing warranty.
Securely fasten the L-feet to the roof with
the lag screws. Ensure that the L-feet face as
shown in Figure 8 and 9. For greater ventila-
tion, the preferred method is to place the
single-slotted square side of the L-foot against
the roof with the double-slotted side perpen-
dicular to the roof. If the installer chooses to
mount the L-foot with the long leg against the
roof, the bolt slot closest to the bend must be
used.
Lower roof edge
Rafters (Building Structure)
1V~-lYd' ~-~ i~--
/ ',1 IIIl
, /
Foot spac n~l/ I II
Overhang 33% L max
Note: Modules me. st be
centered symmetrically on the
rails (+/- 2").
Figure 9. Layout with rails parallel to rafters.
,F U N I RAC' Unirac Code-Compliant Installation Manual SolarMount
[3.2.3] Laying out standoffs
Standoffs (Figure 10) are used to increase the height of the
array above the surface of the roof. Pair each standoff with a
flashing to seal the lag bolt penetrations to the roof.
Use Figure 11 or 12 to locate and mark the location of the
standoff lag screw holes within the installation area.
Remove the tile or shake underneath each standofflocation,
exposing the roofing underlayment. Ensure that the standoff
base lies flat on the underlayment, but remove no more mate-
rial than required for the flashings to be installed properly.
The standof~ must be firmly attached to the building structure.
Overhang 33% L max -.- ~-' Foot spacing/
. ' RO ~pcm, L
I Z/s'' , l-=~., ~
Lower roof edge
Rafters -- ,/
(Building Structure)
Figure 11. Layout with rails perpendicular to rafters.perpendicular to rafters.
~' b~1 --- ~ ROI$Oon"L"
Lower roof edge ~,
, ', Rafters (Building Structure)
Note: Modules must be centered symmerrlcaIiy on the raib
Figure 12. Layout with rails parallel to rafters.
18
Figure 10. Raised flange standoff (left)
and flat Wp standoff used in conjunction
with an L-foot.
If multiple high-profile rows are to be
installed adjacent to each other, it may not
be possible for each row to be centered above
the rafters. Adjust as needed, following the
guidelines of Fig. 12 as closely as possible.
Installing standoffs:
Drill 3/16 inch pilot holes through the
underlayment into the center of the rafters at
each standofflocation. Securely fasten each
standoffto the rafters with the two 5/16" lag
Ensure that the standoffs face as shown in
Figure 11 or 12.
Unirac steel and aluminum two-piece
standoffs ( 1-5/8" O.D.) are designed for
collared flashings available from Unirac.
Install and seal flashings and standoffs
using standard building practices or as the
company providing roofing warranty directs.
$olarMount lJniracCode-Com?liantlnstallationManual .a=UNIRAf;'
[3.2.4] Installing SolarMount rails
Keep raft slots free of roofing grit or other debris. Foreign matter will
cause bolts to bind as they slide in the slots.
Installing Splices: If your installation uses SolarMount splice bars, attach
the rails together (Fig. 13) before mounting the rails to the footings. Use
splice bars only with flush installations or those that use low-profile tilt
legs.
Although structural, the joint is not as strong as the rail itself. A rail should
always be supported by more than one footing on both sides of the
splice. (Reference installation manual 908, Splices/Expansion Joints.)
Mounting Rails on Footings: Rails may be attached to either of two
mounting holes in the L-feet (Fig. 14). Mount in the lower hole for a low
profile, more aesthetically pleasing installation. Mount in the upper hole
for a higher profile, which will maximize airflow under the modules. This
will cool them more and may enhance performance in hotter climates.
glide the 3/B-inch mounting bolts into the footing bolt slots. Loosely attach
the rails to the footings with the flange nuts.
Ensure that the rafts are oriented to the footings as shown in Figure 8, 9,
11, or 12, whichever is appropriate.
Aligning the Rail End: Align one pair of rail ends to the edge of the
installation area (Fig. 15 or Fig. 16).
The opposite pair of rail ends will overhang the side of the installation
area. Do not trim them off untft the installation is complete.
If the rails are perpendicular to the rafters (Fig. 15), either end of the rafts
can be aligned, but the first module must be installed at the aligned end.
If the rails are parallel to the rafters (Fig. 16), the aligned end of the rails
must face the lower edge of the roof. Securely tighten all hardware after
alignment is complete (20 ft lbs).
Mount modules to the rails as soon us possible. Large temperature
changes may bow the rails within a few hours if module placement is
delayed.
Figure 13. Splice bars slide into the foolin~ bolt
slots of $olarMount rail sections.
,' '~11~/ sots
Footing' r ~
bolt slot lB' [
I ~7~.. '/',~
Figure 14. Foot-w-rail splice attachment
Edge of installation area
Figure 15. Rails perpendleular to the r~
Edge of installation area
Figure 16. Rails parallel to the rafters.
d-'UNIRAC' Unirac Code-Compliant lnstallation Manual SolarMount
[3.2.5] Installing the modules
Pre-wiring Modules: If modules are the Plug and Play type,
no pre-wiring is required, and you can proceed directly to
"Installing the First Module" below.
If modules have standard J-boxes, each module should be
pre-wired with one end of the intermodule cable for ease of
installation. For safety reasons, module pre-wiring should not be
performed on the roof.
Leave covers off J-boxes. They will be installed when the
modules are installed on the rails.
Installing the First Module: In high-profile installations, the
best practice would be to install a safety bolt (1/4"-20 x 1/2") and
flange nut (both installer provided) fastened to the module bolt
slot at the aligned (lower) end of each raft. It will prevent the
lower end clamps and damping bolts from sliding out of the rail
slot during installation.
If there is a return cable to the inverter, connect it to the first
module. Glose the 3-box cover. Secure the first module with
T-bolts and end damps atthe aligned end of each rail. Allow
half an inch between the rail ends and the end clamps (Fig.18).
Finger tighten flange nuts, center and align the module as
needed, and securely tighten the flange nuts (10 fx lbs).
Installing the Other Modules: Lay the second module face
down (glass to glass) on the first module. Connect intermodule
cable to the second module and dose the J-box cover. Turn the
second module face up (Fig. 17). With T-bolts, mid-damps and
flange nuts, secure the adjacent sides of the first and second
modules. Align the second module and securely tighten the
flange nuts (Fig. 19).
For a neat installation, fasten wire management devices to rails
with self-drilling screws.
Repeat the procedure until all modules are installed. Attach the
outside edge of the last module to the rail with end clamps.
Trim off any excess rail, being careful not to cut into the roof.
Allow half an inch between the end damp and the end of the rail
(Fig.
Figure 17
!/2" minimum
L...,
End clamp
Figure 18
,,i , Module frames
~ I/4" module Dolt
~-~.rr~ and flange nut
j ~ Mid clamp
Figure 19
Hig(hc~ioPs?seedctimo°n~u'ell'~Ill~jSpaoer z::: ~~pe~module~[i;~
SolarMount rail SolarMount rail
Figure 20. Mid clamps and end clamps for lipped-frame modules are identical. A spacer for the end clamps is necessary only if the lips are
located high on the module frame.
20
SolarMount L!nirac Code-Compliant lnstallation Manual -'!'UNIRAI '
[3.3] Installing $olarMount with bottom mounting clips
This section covers SolarMount rack assembly where the installer has elected to use bottom mounting clamps to secure modules to
the rafts. It details the procedure for flush mounting SolarMount systems to a pitched roof.
Figure 21. $MR and CB components
Table 14. Wrenches and torque
Wrench Recommended
size torque (f~4bs)
~ hardware ~6' 10
hardware ~6' 30
Stainless steel hardware can seize up, a process
called galling. To significantly reduce its
likelihood, (1) apply lubricant to bolts, preferably
an anti-seize lubricant, available at auto parts
stores, (2) shade hardlvare prior to installation,
and (3) avoid spinning on nuts at high speed.
See Installation Supplement 910, Galling and Its
Prevention, at wv~v. unirac, com~
4= U N I RAC' Zlnirac Code- Compliant Installation Manual SolarMount
[3.3.1] Planning the installation area
Decide on an arrangement for clips, rails, and L-feet (Fig. 22).
Use Arrangement A if the full width of the rails contacts the
module. Otherwise use Arrangement B.
Caution: If you choose Arrangement B, either
(1) use the upper mounting holes of the E-feet or
(2) be certain that the E-feet and clip positions don't
conflict.
If rails must be parallel to the rafters, it is unlikely that they
can be spaced to match rafters. In that case, add srtuct~ral
supports- either sleepers over the roof or mounting blocks
beneath it. These additional members must meet code; if in
doubt, consult a professional engineer.
Never secure the footings to the roof decking alone. Such an
arrangement will not meet code and leaves the installation
and the roof itself vulnerable to severe damage from wind.
Leave enough room to safely move around the array during
installation. The width of a rail-module assembly equals the
length of one module. Note that L-feet may extend beyond
the width of the assembly by as much as 2 inches on each
side. The length of the assembly equals the total width of the
modules.
Figure 22. Clip Arrangements A and B
SolarMount UniracCode-CompliantlnstallationManual d UNIRAC
[3.3.2] Laying out the installing L-feet
L-feet are used for installation through
existing low profile roofing material, such
as asphalt shingles or sheet metal. They
are also used for most ground mount
installations. To ensure that the L-feet will
be easily accessible during flush installation:
· Use the PV module mounting holes
nearest the ends of the modules.
· Situate the rafts so that footing bolt
slots face outward.
The single slotted square side of the L-foot
must always lie against the roof with the
double-slotted side perpendicular to the
roof.
Foot spacing (along the same raft) and rail
overhang depend on design wind loads.
Install half the L-feet:
· If rails are perpendicular to rafters
(Fig. 23), install the feet closest to
the lower edge of the roof.
· If rails are parafiel to rafters
(Fig. 24), install the feet for one of
the rails, but not both.
For the L-feet being installed now, drill pilot
holes through the roofing into the center of
the rafter at each lag screw hole location.
Squirt sealant into the hole and onto the
shafts of the lag screws. Seal the underside
of the L-feet with a sealant. Securely fasten
the L-feet to the building structure with the
lag screws. Ensure that the L-feet face as
shown in Figure 23 or Figure 24.
Hold the rest of the L-feet and fasteners
aside until thc panels are ready for the
installation.
Install
Second
T
u SolarHoufit Rails
Rafters
Figure 23. Layout with rails perpendicular to rafters.
Rafle~s ~,, ~ Install L-Feet
First
Blocks Install L-~eet Second
Figure 24. Layout with rails parallel to rafters.
'UNIRAC' Unirac Coae-Compliant lnstallation Manual SolarMount
[3.3.3] Attaching modules to the rails
Lay the modules for a given panel face down on a surface
that will not damage the module glass. Align the edges of the
modules and snug them together (Fig. 21, page 22).
Trim the rails to the total width of the modules to be mounted.
Place a rail adjacent to the outer mounting holes. Orient
the footing bolt slot outward. Place a clip slot adjacent to
the mounting holes, following the arrangement you selected
earlier.
Assemble the clips, mounting bolts, and flange nuts. Torque
the flange nuts to 10 foot-pounds.
[3.3.4] Installing the module-rail assembly
Bring the module-rail assembly to the installation site. Keep
raft slots free of debris that might cause bolts to bind in the
slots.
Consider the weight of a fully assembled panel. Unirac recom-
mends safety lines whenever lifting one to a roof.
Align the panel with the previously installed L-feet. Slide 3/8
inch L-foot mounting bolts onto the rail and align them with
the L-feet mounting holes. Attach the panel to the L-feet and
finger tighten the flange nuts.
Rafts may be attached to either of two mounting holes in the
footings (Fig. 25).
· Mount in the lower hole for a low, more aethetically
pleasing installation.
· Or mount in the upper hole to maximize a cooling
airflow under the modules. This may enhance perfor-
mance in hotter climates.
Adjust the position of the panel as needed to fit the installa-
tion area. Slide the remaining L-feet bolts onto the other rail,
attach L-feet, and finger tighten with flange nuts. Align L-feet
with mounting holes previously drilled into the roof. Install
lag bolts into remaining L-feet as described in "Laying out and
installing L-feet" above.
Torque all footing flange nuts to 30 foot-pounds. Verify that all
lag bolts are securely fastened.
Footing
bolt slot
Mounting
-slots
Flange
Figure 25, Leg-to-rail attachment
SolarMount UniracCode-CompliantlnstallationManual -'PUNIRAf'
[3.4] Installing $olarMount with grounding clips and lugs
Chps and lugs are sold separately
UGC- I
Nib ¢~"~U~
Intertek
Top
mounting
Module
T-bolt
SolarMount~ rail (any type)
WEEBLug
Stainless Steel Flat
Washer (WEEBJ
aluralnurn rall or through the
clearance hole in the stainlgss stol
fiat washee Pl~e the stainless steel
fiat washer on the bol~ oriented
aluminum rail Place the l~gFortion
and ~ 2he embedded d~n~les make
WEEBLug ~
Figure 28. UGC-1 layout for even
and odd number of modules in row.
'~X" denotes places to install UGC-1.
Even Number of Modules in row
Odd Number of Modules in row
Figure 29. Single wire grounding
with spliced rails.
KEY
Single grounding
wire for entire array
-'i:UNIRAC lJniracCodeoCompliantlnstallationManual SolarMount
Warranty Information
.... BmUl'~l~r~, Albuquerque NM 872o2-:t545 USA
26
SOLARMOUNT
TLH High Profile Tilt Legs.
Installation Supplement 205.4
U.S. Des. Patent No. D496,248S, D496,249S. Other patents pending.
Thank you for purchasing a Unirac. Please review this manual thoroughly before installing
your SolarMount system.
The installer is solely responsible for:
Complying with all applicable local or national building codes, including any that may
supercede this manual;
Ensuring that Unirac and other products are appropriate for the particular installation
and the installation env/ronmear;
Ensuring, in roof applicatinns, that the roof, its rafters, connections, and other
structural support members can support the array under building live load conditions;
Using only Unirac parts and installer-supplied parts as specified by UniRac (substitution
of parts may void the warranty);
Ensuring that lag screws have adequate pullout strength and shear capacities as
installed;
In roof applications, maintaining the waterproof integrity of the roof, including
selection of appropriate flashing; and
Ensuring safe installation of all electrical aspects of the PV array.
-'-"U N I RAC
A HILTI GROUP COMPANY
U N[RA£ Installation Manual 205.4 TLH High Profile Leg Kit SolarMount
~ ~'~ 6 (from your roil set
~ slide bolt head
~x.~· into rail slot
FIXED LEG
(Special order}
Leg strut
6 (from roi~ set)-----
L-foot (from
rail set)
Leg strut
ADJUSTABLE
LEG
tube
6 (from your rail set)
slide bolt head
info rail stat
SolarMount rail
(from rail set)
bloat {from
rail set}
FOOT
Drill 3/8" bolt ho~e
for easier seasonal
adjustment.
Adjustable le§ parts list
Quantity
Port 2-leg k/ts 4-leg k/ts
Wrench Recommended
s/ze torque (~t-lbs)
Leg tube 2 4
Leg strut 2 4
I. Bolt, 3Is x 3" 2 4 9h6" 15
2. Boll 3/e x i¼" 2 4 ~/,~" 15
3. Flange null 3la" 2 4 ~1,6" I 5
4. Strut nut, ~/~" 2 4
5. Fender washer, ~/~" 4 8
6. Bolt, ~/a x ~/Z' 4* 8t ~/,~" 15
*From your roil sec
t6 from your rail set; 2 from your leg kiL
Adjustable Leg Cross Section
Fixed leg parts list (per pair of legs)
Wrench
Port Quantity size
Recommended
torque (fi-lbs)
Leg strut I
2. BOlt, ~h x I'h" 2
3. Flange nut. ~/~" 2
6. Bolt, ~/e x ~h"
(from your rail set) 4 9/,~"
15
J5
15
Caution: Stainless steel hardware can seize up, a process called galling. To significantly
reduce the likelihood of galling, SAF-T-EZE anti-seize lubricant has been included with
your hardware. Apply a very small drop to the threads of all bolts before installa-
tion. If more anti-seize is needed, substitute any lubricant.
SolarMount
Installation Manual 205.4 TLH High Profile Leg Kit ~-iI U N I RAC
percent of rail length
/
Spacing of Footing Bolts
and L-Feet for Each Rail (inches)
Use this table in conjuction with Figure 3 or Figure 4 to determine
footing bok and L-foot spacing for your SMR Rail Set.
Rail Length 70% Rail Length
SMR48 48 34
SMR60 60 42
SMR72 72 50
SMR84 84 59
SMR96 96 67
SM R 106 106 74
40% Rail 45% Rail
Rail LengZhLeng*.h Length
SMR120 120 48 54
SMRI32 132 53 59
SMRI44 144 58 65
SMR 156 156 62 70
SM R 168 168 67 76
SMR 180 180 72 81
Figure 4. £eg spacing with SolarMount SMRI20 W
132 rail sets (two legs per rail),
Figure 3. Leg spacing with $olarMount SiVIR48 W
I06 rail sets (one leg per mil).
U N I RAC' Installation Manual 205.4 TLH High Profile Leg Kit
10 year limited Product Warranty, 5 year limited Finish Warranty
$olarMount
("Purchaser") of product(s) that it manufactures
and workmanship for a period of ten (I 0) years,
shall be free from visible peeling, or cracking or
for a period of five (S) years, from the earlier
completed, or 2) 30 days after the purchase of
the Product by the original Purchaser ("Finish
V~rr~nty").
The Finish Warranty does not apply to any
are excluded. The Finish Warranty isVOID if
the practices specified by AAP1A 609 & 610-02
-"Cleaning and Plaintenance for Architecturally
Finished Aluminum" (w~w.~.manet.o~g) are not
followed by Purchase~This Warranty does not
cover damage to the Product that occurs during
its shipment, storage, or inst~llation.
This Warranty shall beVOID if inst~llation of
the Product is not performed in accordance
with Unirac's written installation instructions,
or if the Product has been modified, repaired,
or reworked in a manner not previously
authorized by Unirac IN WELTING, or if the
Product is inst~lled in an environment for which
it w~s not designed. Unirac shall not be liable
for consequential, contingent or incident~[
damages arising out of the use of the Product by
Purchaser under 3ny circumstances.
If within the specified Warranty periods the
Product shall be reasonably proven to be
defective, then Unirac shall repair or replace the
defective Product, or any pert thereof, in Unirac's
sole discretion. Such repair or replacement shall
completely satisfy and discharge all of Unirac's
liability w~th respect to this limited Warranty.
Under no circumstances shall Unirac be liable
for special, indirect or consequential damages
arising out of or related to use by Purchaser of
the Product
I~lanufitcturers of related items, such as PV
modules and flashings, may provide writ:eh
warranties of their own. Unirac's limited
Warranty covers only its Product, and not any
related items.
· '. MI Dh/' 1411 Broadway Boulevard NE
IIUl~[~m~m Albuquerque NM 87102-1545 USA
4
32 KD240 Provided KD MODULES
SPECIFICATIONS
315W 250W 245W 220W 215W 140W 135W
80 60 60 60 54 54 36 36
+5% [ -3% +5% / -3% +5% / -3% +5% / -3% +5% 1-3% *5% / -0% +5% / -5% *5% 1-5%
600V 600V 600V 600V 600V 600V 600V 600V
39.8V 29.8V 29.8V 29,8V 26.6V 26.6V 17.7V 17.7V
7.92A 8.39A 8.23A 8.06A 8.28A 8.09A 7.91A 7.63A
49.2V 36.9V 36.9V 36.9V 33,2V 33.2V 22.1V 22.1V
8.50A 9.09A 8.91A 8.59A 8.98A 8.78A 8.68A 8.37A
15A 15A 15A 15A 15A 15A 15A 15A
65.4" 65.4" 65.4" 65.4" 59.1" 59.1" 59.1" 59.1"
52.0" 39.0" 39.0" 39.0" 39.0" 39.0" 26.3" 26.3"
1.8" 1.8" 1.8" 1.8" 1.8" 1.8" 1.8" 1.8"
60.6 lbs 46.3 lbs 46.3 lbs 46.3 lbs 39.7 lbs 39.7 lbs 27.6 tbs 27.6 lbs
Locking Plug-in Connectors
UL 1703 USTED C I1~ ..
T~IV
CERTIFIED IEC61215 ED2 IEC61730 BY JEt
121511
Available Upon Request
2 PVt-3.6 Provided
Maximum Usable Power for Each Channel
MPPTVoltage Range
Start- UpVoltage
Absolute Maximum Voltage (Vmax)
Maximum Current (Idcmax) for both MPPT in Parallel
Maximum UsaMe Current per Channel
Number of Wire Landing Terminals per Channel
Number of Independent MPPT Channels
Array wiring Termina@on
Output Slde(Aq
Gdd Standard
Nominal Power
Voltage Range (Vmin-Vmax)
Grid Frequency; Range*'
Maximum Current (lac, max)
Power Factor
Total Harmonic Distortion At Rated Power
Maximum Efficiency
CEC Effidency
Consumption in Stand By (Night)
Consumption During Operation
Topology
Enclosure rnting
Coolin9
Conduit Connections
Dimensiom (W~4/D)
Unit Weight
Shipping Weight
Mounting System
Ambient NrTemperature Range °F (°C/
ACOUS~C Noise Emis@on Level dBA @ 1 rn
Relative Humidi~ %RH
Maximum Operating Altitude wilhout Durating fi(m)
AntHslanding Prota(@on
Entemal AC OCPD Rating
Ow-Vo~Umge ProtecNon Type
SafetyApptoval
r-mm~ae~ Commm'dcaU~
Av~mMe Modds
W 2000 3000 3000
V 160.530 120-530 140.330
V 200 (adi. 120.350) 200 (adj. 120.350) 200 (adj. 120-350)
V 600 600 600
A 20 32 32
2 I1 an -SVersion) 2 I1 on -SVersion) 2 I1 on -SVersion)
2 2 2
Screwterminal block
3 Knock-Outs: 1 Y~' or 1" (w/Ring Reducer)
W 3000 3600 4200
V 183-228 211-264 244-304 183-228 211-264 244-304 183-228 211-264 244-304
Hz 60;(39.3-60.5) 60;(39.3-60,5) 60;(3@360.5)
A~Ms 14.5 14.5 12 17.2 16 16 20 20 20
> 0.905 > 0,903 > 0@95
% <2 <2 <2
NEMA4X
Natural Convedion
Trade size KOs: (2eaxl/2') and [2ea x
14/4",3 places side, front, rear)
5crewTerminal Block
Single wire, 90°C terminal wiring
< 303 (17.5)
lb(kg) < 47.3(21.3) -S version
lbs(kg) < 30.5 (17.5) < 47.3 (213) -S version
Wall bracket
NEMA4X
Natural Convection
Trade size KOs: {2eax%/2') and (2ea x
1-1/4~3 places side, front, rear)
ScrewTerminal Block
SinCe wire, 00°C terminal wiring
12.8 x243 x 8.7{325 x617x 222)
12.0 x33.B x 8.7( 325 x 859 x222 ) -5 Version
< 38,3 (17.5)
< 47.3(213) -5 version
< 38.5 (17.5) < 473 (21.3) -S version
Wall bracket
NEMA4X
Natural Convection
Trade size KOs: (2eax~/2') and (2ea x
I-1/4~,3 places side, front, rear)
Screw Terminal Block
Single wire, 90~C terminal wiring
< 38.5 [17.5)
< 47.3(21.3) -S version
< 38.5 (175) < 47.3 (21.3) -S version
Wall bracket
-I 3_.+140 (-25..+60) with derating above 131 (53)
<50 <50
0-100 condensing 0-100 condensing
6560 (2000) 6560 {2000)
According to UL 1741/]EEE t547 According to UL 1741/16661547
20 20 15 20 20 20
Var[star, 2 (L- N/L-PE) Varistor, 2 (L- N/L-PE)
12.5 20
Varistor, 2 for each channel Varistor, 2 for each channel
<50
0-100 condensing
6560 (2000)
According to UL 1741/IEEE 1547
25 25 25
Varistor, 2 (L- N/L-PE)
Yes
2O
Varistor, 2 for each channel
Pre start-up Riso and dynamic GFDI (Requires Floating Arrays)
25/600 25 /6{X) 25 /600
Transformerless (Floating ~ray} Transformerless (Floating Array) Transformerless (Floating Array)
UL 1741, CSA - C22.2 N. 107.1-01 UL 1741, CSA - C222 N. 107] -01 UL 1741, CSA - C22.2 N. 107.1-01
cCSAus cCSAus cCSAu~
16 characters x 2 lines LCD display 16 chara~ers x 2 lines LCD display 16 characters x 2 lines LCD display
AURORA-UNiVERSAL (opt.) AURORA-UNIVERSAL (opt.) ALJRORA-UNIVERSAL (@pti
PVI-USB-RS485_232 (opt.), PVI-DESKTOP (opt.)
PVI-DESKTOP (opt.) with PVI-RADIOMOOULE {opt.)
5 5 5
PVh3.0-OUTD-US PVl-3.0-OUTD-U5 PVF42-OVTD-U5
PV1-3.0-OUTD-S-US PVI-3.6-OUTD-S-US PW-42q) UTD-S-US
Pr~ectSpecs
Telephone:
APPENDIX A (ENGINEERING REPORT)
Solarmount / Sunframe Configurator - Project Specs
RaCing Type SolarMount Roofm ount
Module Odenta~on LandsCape
Rail Direction N-S
V~nd E.~os um B
Importance FaCtor 1
',~nd Speed V 110 m ph
Effective V~nd Area 1 O0 fl2.
Roof Zone 1
DesCription
Net Design V~nd Press ute (Downforce)
Adjustment Factor for Height and E~osure Category
Im po~tance Factor
Design ~nd LOad (Up~iff)
Design V~nd LoaCl (Downforce)
Snow Load S 20
Total Load Combination 1 i~ + 0 75Pnet · 0755 33.575 psf
Total Load Combination 2 O +Pnet 231 psf
Total Load CombinatJon 3 D + S 25 psf
Total Load Combination 4 0 6D + Pnet -15 1 psf
Max AJ~soiute Value Load 33575 psf
I of 2
Racking ~tachment Type Single L
RaCking Attachment L~Coot
Rail preference SM R,~L 168" DRK
Re~sed Rail Span L 5 ft
,Nlewable Spans
Single L Foot SM 5 ft
Single L Foot SMHD 8
Double L Foot SM 5
Double L Foot SM/fiD 8 ft
PAnt Load CalcutaSens (per Ccde, these are based on ma~mum allowable spans as shown in cflatl abe',e}
This englneenng report and associated bill of materials is to be evaluated to Unirac SolarMount Code Com pliant Installa§on Manual 2273 (Pub 110816-1 cc) and SunFreme Code eom pliant
Installa~on Manual 809 (Pub 110518-2cc) which references International Building Code 2003, 2006.2009 and/~SCE 7~)5, ~CE 7~2 and California Building Code 2010 The installa~Jon of
products related to Iflis engineering repoA is subje~ to requirements in the abo'~ mentoned installation manual
2 of 2