HomeMy WebLinkAboutPermit File 1813 Fife Place (2) Y 6 . City of Anacortes Invoice/Permit#: BLD-2014-0469
904 6th Street Applied date: 10/17/2014
P.O.Box 547 Issue date: 10/17/2014
Anacortes, WA 98221-0547
`:.•�r , 1091 Expire date: 04/14/2016
..� (360) 293-1901
Job Address: 1813 FIFE PL Permit Type: Single Family Alteration/Repair Permit
ANACORTES WA 98221-3112 Project:
APN: P59886
Remarks: Ading to roof structure solar module rac
Owner: PRINGLE ROY J Contractor: FIRE MOUNTAIN SOLAR
Address: PO BOX 722 Address: 18388 PERWINKLE LN
ANACORTES WA 98221-0722 BURLINGTON WA 98233
Phone: Phone: (360) 422-5610
License#:
General Information: Fees:
Building Valuation 1640 Building Permit Fee 60.10
Plan Review Fee 39.07
State Building Code Fee 4.50
Total Calculated: 103.67
Deposits/Receipts: 0,00
Total Due: 103.67
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THIS PERMIT BECOMES NULL AND VOID IF WORK OR CONSTRUCTION AUTHORIZED IS NOT COMMENCED WITHIN 180 DAYS, R�1F
CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A PERIOD OF 180 DAYS AT ANY TIME AFTER WORK IS COMMENCbr.) I
HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT.ALL' OVI ii S
OF LAWS AND ORDINANCES GOVERNING THIS TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN Og.NOT:,1 IE
GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE PROVISIONS OF ANY OTHER STAR
LOCAL LAW REGULATING CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION. a -p, n•..
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SIGNATURE OF OWNER OR AUTHORIZED AdtNT ISSUED BY 'tip --, \ a
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Residential Building Permit Application
City of Anacortes Building Department
P.O. Box 547 Anacortes, WA 98221
Street Address: 904 6th Street
Phone: (360) 293-1901 Fax: (360) 293-1938
SITE ADDRESS: / f 3 Fi..Fc, P! fi ck Cor eZ l� 2L l
CONTRACTOR XApplicant PROJECT DESCRIPTION
Name F1 re_ }Moe ni-z inW.5o�C5�r ,riB ca oaf mac)\
' Address 1838Z7 IW\(X W.. LA rn UL1 U,VL. c atVAry.3,
City/State/Zip ( ': 'JQ(U( 1 WA (1821114
Phonel 22- b(p tO FAX aDC9-. j-(
State License# (^RE.MtSg32 L QExp 1 f 2 1 S iO L131 qi 0 2 10166115 PARCEL NUMBER
City of Anacortes Business License:XYes Cl No
PROPERTY OWNER 0 Applicant LEGAL DESCRIPTION
NameP�+nr�lsz
Address /A 3 f I-k (�
. Platt
att
City/State/Zip/ PfOC -4e 1i q&2Z PROJECT VALUAfTION�
Phone 3t,(' — 3 �7lFAX 4 l �/ v
Number of Dwelling Units
E-Mail Address (9 `f Number o1'Stories
'fv5`y'1�' 'L4� Building Area:
0 Architect❑Designer 0 Engineer 0 Applicant 1'`Floor s.f. 2"`'Floor s.f.
Name 31'dFloor s.f. Basement s.f.
Address Garage s,f, Carport s,f.
City/State/Zip Deck s.f. Lot Area s.f.
Phone FAX
E-mail Address
CONTACT ❑Applicant LENDER
LENDER INFORMATION MUST BE PROVIDED FOR PROJECTS OVER$5,000
Name IN VALUATION PER RCW.
Address Name
City/State/Zip Address ro;
11
Phone _ FAX City/State/Zip
E-mail Address Phone No. ((tt `
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CONTINUED ON THE BACK
Residential Mechanical Fixtures
Fuel Type
❑ Natural Gas ❑ Electric ❑ Wood ❑ Propane Gas XOther
Type of Equipment Number of Type of Equipment Number of
Fixtures Fixtures
Furnace <=100K BTU Clothes Dryer
Boilers/AC/Heat Pump Gas Water Heater
Gas Outlets Gas Fireplace
Ventilation Fans Fireplace Insert
Stove,Appliance Other Units
Range Hood
Residential Plumbing Fixtures
Type of Fixture Number of Type of Fixture Number of
Fixtures Fixtures
Toilet Clothes Washer
Bathtub Electric Water Heater
Shower Utility Sink
Dishwasher Hose Bibb
Hand Sink Water Piping
Kitchen Sink w/Disposal Additional Fixtures
I HEREBY ACKNOWLEDGE IE HAVE READ THIS PERMIT APPLICANT AND STATE TIER INFORMATION IS CORRECT,AND AGREE TO COMPLY WITH ALL CITY
ORDINANCES AND STATE LAWS REGULATING ACITIViES COVERED BY THIS PERMIT APPLICATION. WITH THIS PERMIT ALL CONTRACTORS AND
SUBCONTRACTORS SHALL HAVE A CURRENT WASHINGTON STATE CONTRACTORS LICENSE AND A CITY BUSINESS LICENSE. STOP WORK ORDERS
WILL BE ISSUED ON JOB SITES WHERE CONTRACTORS/SUBCONTRACTORS ARE WORKING WITHOUT PROPER LICENSE.
APPLICANT'S SIGNATURE DATE
Last Updated Nov.9,2012
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James A. Marx, Jr. P.E.
10 High Mountain Road
Ringwood,NJ 07456
E-mail:jamlight@verizon.net
March 3, 2012
Unirac, Inc.
1411 Broadway Blvd.NE
Albuquerque,NM 87102
To: Building Department or Others:
RE: Engineering Certification for UniRac SolarMountTM
Universal PV Module Mounting System
Dear Sir:
I have reviewed Unirac SolarMountTM"Code-Compliant Installation Manual 227.3", 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 Washington State Building Code that
references International Building Code-2009 or International Residential Code-2009 and
ASCE 7-05.Unirac's Manual 227.3 utilizes ASCE 7-05 for which Unirac Table 2 is
based upon, and that 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 SolarMountTM railing and anchorage requirements for the installation are
properly represented in the Installation Manual 227.3.
For other conditions,the determination of wind pressures should be determined by the
aforementioned International Building Code—2009 and ASCE 7-05 procedures.
The International Building Code requires that wind loading be determined based upon
ASCE 7-05 Simplified Method 1 or ASCE 7-05 using Method 2, 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.
James A. Marx,Jr.P.E.
Page 2 of 2
The design verification is based on:
1. ASCE7-05—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 227.3 will meet the requirements of the building
codes adopted by State of Washington. 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, 5 p,.m'Vfir y-
3k ., .j, .
6
James A.Marx,Jr.PE v".,,a
WA Professional Engineer License No. 28281 'r,�_ ,;,,rti.,: ;
EXPREs 7 it r1--
cc:James Madrid,Unirac,Inc.
10/14/2014 Unirac- Results- 167789de
U N I RAC: Engineering Report
.,.Iiltii.-,Nr'i'r , r1;.+P.epfir`
Project Title: Pringle Oct. 14, 2014, 3:44 p.m.
Project ID: 167789de
Name: SOLARMOUNT
Address: 12 -260 Watt Panels
City,State: Anacortes,WA 98221
Module: Itek Energy IT 260 211 ft2
260 Watts 3.1 KWs
Bill of Materials
Parts and Accessories
Legend: • Base System Part iti Accessory
Part Number Part Type Description Quantity Suggested Unit Price Total List Price
Quantity (USD) (USD)
I310168C Rail. SM RAIL 168" CLR 6 6 88.00 528.00
I303001C Splice SM SPLICE BAR SERRATED CLR 2 2 5.90 11.80
I302005C End Clamp SM ENDCLAMP E,W/HDW,CLR 12 12 2.22 26.64
I 302103C Mid Clamp SM CLR
RMID CLAMP, EFJMN,W/HDW, 18 18 2.48 44.64
I 304000C Roof SM L-FOOT SERRATED W/HDW, 28 28 4.33 121.24
Attachment CLR
I004010D Flashing UNIRAC FLAT FLASHING 28 28 14.00 392.00
I008009P Grounding Lug ILSCO LAY IN LUG 8 8 8.40 67.20
I3080015 UGC Clip SM GROUND CLIP#1,UGC-1 SS 12 12 2.29 27.48
Base System Accessories Total Price
$611.08 $607.92 $1219.00
$0.20 per watt $0.19 per watt $0.39 per watt
Discounted Price:$792.35
This design is to be evaluated to the product appropriate Unirac Code Compliant Installation Manual which references International Building Code 2003,2006,2009,2012 and ASCE 7-02,
ASCE 7-05,ASCE 7-10 and California Building Code 2010.The installation of products related to this design is subject to requirements in the above mentioned installation manual.
http://design.unirac.com/tool/project/solarmount/167789de/# 1/4
10/14/2014 U ni rac- Results- 167789de
Detailed Parts Descriptions
310168C SM RAIL 168°CLR Rail
Structural aluminum extrusion containing slots that accept module and roof 6
f/ attachment hardware, electrical bonding accessories, and splice bars.
303001C SM SPLICE BAR SERRATED CLR Splice
Aluminum extrusion for joining adjacent lengths of rail to one another. Can also 2
function as thermal expansion joint. Includes self drilling screws.
302005C SM ENDCLAMP E,W/HDW,CLR
Mounts 50-52 mm (1.97-2.05 In)thick PV modules to rail by clamping module End Clamp
frame from above. Includes T bolt and nut. If mounting on short side of module 12
frame,confirm this is acceptable with PV module manufacturer.
302103C SM MID CLAMP, EFJMN,W/HDW,CLR
Located between adjacent PV modules, mounts 41-59 mm (1.61-2.32 in)thick Mid Clamp
modules to rail by clamping module frame from above. Includes T bolt and nut. 18
If mounting on short side of module frame,confirm this is acceptable with PV
module manufacturer.
• 304000C SM L-FOOT SERRATED W/HDW,CLR Roof Attachment
Angle bracket connecting rail to roof or roof mounting accessory with serration 28
on both mounting surfaces. Lag bolts sold separately.
004010D UNIRAC FLAT FLASHING Flashing
Includes flashing, attached gasket,washer, and square aluminum washer only. 28
(12" x 8"). Lag bolt and rail attachment component sold separately.
41*
008009P ILSCO LAY IN LUG Grounding Lug
For electrical bonding of PV modules and rails.Accepts 4-14 AWG copper wires. 8
Tin plated copper body, 1/4" stainless steel fasteners.
308001S SM GROUND CLIP#1,UGC-1 SS UGC Clip
Stainless steel clip that creates an electrical bond between SolarMount rail and 12
PV module frames.
http://design.unirac.com/tool/project/solarmount/167789de/# 2/4
10/14/2014 Unirac- Results- 167789de
Nei iwurtitrii
:r IN I R Engineering Report
H113]
°
Pr*jec Pringle Oct, 14a 2014 3:44 p.m.
Project ID: 167789de
Name: SOLARMOUNT
Address: 12 -260 Watt Panels
City, State: Anacortes,WA 98221
Module: Itek Energy IT 260 211 ft2
260 Watts 3.1 KWs
Engineering Report
Plan Review Inspection
Roof Point Load Up: 88 Lbs Maximum Rail Span (Zone i): 72°
Selected Rail Span: 48°
Roof Point Load Down: 337 Lbs
Product: SOLARMOUNT
Module Manufacturer: Itek Energy
Total Number of Modules: 12 Model: IT 260
Total KW: 3.1 KW I Module Watts: 260 watts
Rows/Columns: 2/9 (with gaps) Module Length: 64.87 "
NS Dimension: -129.7 in Module Width: 39.12 "
EW Dimension: -363.1 in Module Thickness: 2.00 "
Loads Used for Design Module Orientation: Portrait
Wind Speed: 85 mph Maximum Rail Cantilever: 16.00 "
- Ground Snow Load: 25 psf Expansion Joints: Every 40'
-Wind Exposure: B Rails Direction: EW
Roof Pitch: 7-27°
Loads Determined by Zip Roof Type: Shingle
-City,State: Anacortes,WA
-Wind Speed: 85 mph
- Ground Snow Load: None psf
http://design.unirac.com/tool/project/soiarmount/16T789de/# 3/4
10/14/2014 Unirac-Results-167789de
U N I RAC Engineering Report
A H rLT1Gficklp poC,4PY
Project Title: Pringle Oct 14,2014, 3:44 p.m.
Project ID:167789de
Name: SOLARMOUNT
Address: 12-260 Watt Panels
City,State: Anacortes,WA 98221 •
Module: Itek Energy IT 260 211 ft2
260 Watts 3.1 KWs
Installation and Design Plan
Layout
1 2 3 4 5 6 7 8 9
1 162.5
2 II ti II 363.1
Row Modules Zone Rail Type Splices Roof Attachments
1 4 Zone SM RAIL 168"CLR 1310168C I $88 (2) 0 8
2
2 8 Zone SM RAIL 168"CLR 1310168C I $88 (4) 2 20
3
Maximum Rail Span(Zone 1'): 72"
Selected Rail Span: 48"
Maximum Rail Cantilever: 16.00 "
Module Orientation: Portrait
Rail Direction: EW
*Zone 2 and 3 Rail Spans must be independently verified
http://design.unirac.cam/tool/project/solarmount/167789de* 4/4
10/9/2014 Unirac- Solarmount/Sunframe Configurator- Project Specs
Solarmount / Sunframe Configurator - Project Specs
Project Specs Array Information
Name: Pringle Manufacturer: Itek Energy
Email: elise@fmsolar.com Module Model: IT 260
Telephone: Module Size: 64.88"x 39.13"
Module Rows x Cols 2 x 6
Project Location Number of Arrays 1
City,State: Anacortes,WA Total Modules 12
Zip code: 98221 Total KGlowatts 3.12
County: Skagit
Basic Wind Speed: 85 mph Racking Type SolarMount Roofmount
Ground Snow Load: 25 psf(User Modified) Module Orientation Portrait
Rail Direction E-W
-Snow load not found.You must manually enter snow load for your area.
Material Takeoff
Part Number Part Type Description Sug9 ed Quantity Unit Price Total
Quantity
310168C SolarMount Rail SM RAIL 168" CLR 4 4 $88.00 $352.00
310132C SolarMount Rail SM RAIL 132"CLR 4 4 $70.00 $280.00
303001C Splice SM SPLICE BAR SERRATED CLR 4 4 $5.90 $23.60
302103C Mid Clamps SM MID CLAMP,EFJMN,W/HDW,CLR 20 20 $2.48 $49.60
302005C End Clamps SM ENDCLAMP E,W/HDW,CLR 8 8 $2.22 $17.76
304000C Single L-Feet SM L-FOOT SERRATED W/HDW,CLR 24 24 $4.33 $103.92
004010D Flashing UNIRAC FLAT FLASHING 24 24 $14.00 $336.00
030023C Lag Bolts LAG BOLT,ZINC PLATED,5116 X 3.5 24 24 $0.82 $19.68
Total Price-*Please note these are list prices.Contact your distributor for your system price. $1,182.56
Engineering Variables
Description Variable Value Units
Building Height h 15 ft
Roof Angle 0 to 7 degrees
Wind Exposure B
Importance Factor 1
Wind Speed V 85 mph
Effective Wind Area 100 ft2
Roof Zone 1
Design Wind Load Calculation
Description Variable Value Units
Net Design Wind Pressure(Uplift) Pnet30(Uplift) -11.9 psf
Net Design Wind Pressure(Downforce) Pnet30(Downforce) 4.2 psf
Adjustment Factor for Height and Exposure Category A 1
Importance Factor I 1
Design Wind Load(Uplift) Pnet(Uplift) -11.9 psf
Design Wind Load(Downforce) Pnet(Downforce) 4.2 psf
Load Combinations Calculations
Description Variable Downforce Uplift Units
Dead Load D 5 5 psf
Total Design Wind Load Pnet 10 -11.9 psf
Snow Load S 25
Total Load Combination 1 D+ 0.75Pnet+0.75S 31.25 psf
Total Load Combination 2 D+ Pnet 15 psf
Total Load Combination 3 D+S 30 psf
Total Load Combination 4 0.6D+ Pnet • -8.9 psf
Max Absolute Value Load 31.25 psf
Distributed Load Calculation
Description Variable Value Units
Maximum Absolute Value of Load Combinations P 31.25 psf
Module Length Perpendicular to Rails B 5.41 ft
Distributed Load(Uplift) w -24.06 plf
Distributed Load(Downforce) w 84.48 pif
Rail Span Information
http://www.unirac.com/configurators/estimator roofmountl?module=part&task=estimator&mode=detail&type=solar&id=98 1/2
10/9/2014 Unirac- Solarmount/Sunframe Configurator- Project Specs
Description Variable Value Units
Racking Attachment Type Single L
Racking Attachment L-Foot
Rail preference SM RAIL 168"CLR
Revised Rail Span L 4 ft
Allowable Spans
Single LFoot --- SM 5 ft
Single L Foot SMHD 8 ft
Double L Foot SM 5 ft
Double L Foot SMHD 8 ft
Point Load Calculations(per Code,these are based on maximum allowable spans as shown in chart above)
Description Variable Downforce Uplift Units
Single SM Point Load Force R 422.4 -120.3 lbs
Single SMHD Point Load Force R 675.8 -192.5 lbs
Point Load Calculations for your span are:
Rail preference SM RAIL 168"CLR
Revised Rail Span L 4 ft
Solar Mount Point Load Force R 337.9 -96.2 lbs
This engineering report and associated bill of materials is to be evaluated to Unlrac SolarMount Code Compliant Installation Manual 227.3(Pub 110616-1cc)and SunFrame Code Compliant Installation
Manual 809(Pub 110518-2cc)which references International Building Code 2003,2006,2009 and ASCE 7-05,ASCE 7-02 and California Building Code 2010.The Installation of products related to this
engineering report is subject to requirements In the above mentioned installation manual.
Rev 3.2-8/25/2011
http://www.unirac.com/configurators/estimator roofmount/?module=part&task=estimator&mode=detail&type=solar&id=98 212
SolarMount Unirac Code-Compliant Installation Manual ::U N I RAC
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.] SOLARMOUNT rail components
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Figure 5.SOLARMOUNT O
rail components
O Rail -Supports PV modules, Use two per row of 0 Aluminum two-piece standoff(optional)(3", 4",
modules. Aluminum extrusion, available in mill finish, 6"or 7"total height) -Use one per L-foot. Includes
clear anodized, or dark anodized, 3/8"x 3/4"serrated flange bolt with EPDM washer for
attaching L-foot. Unirac offers flashings for use with
0 Rail splice-Joins and aligns rail sections into single standoffs.
length of rail, It can form either a rigid or thermal
expansion joint, 8 inches long,predrilled. Aluminum 0 Top Mounting Clamps-Includes T-bolts.
extrusion, anodized,clear or dark.
0 Top Mounting Grounding Clips and Lugs
Q Self-drilling screw- (No, 10 x 3/4") -Use 4 per rigid
splice or 2 per expansion joint. Galvanized steel.
Supplied with splice, Installer supplied materials:
• Lag screw for L-foot-Attaches L-foot or standoff to
0 L-foot-Use to secure rails either through roofing rafter, Determine the length and diameter based on pull-
material to building structure or standoffs. Refer to out values. If lag screw head is exposed to elements, use
loading tables or U-Builder for spacing, stainless steel. Under(lashings, zinc plated hardware is
adequate.
® L-foot bolt(3/8" x 3/4") -Use one per L-foot to secure
rail to I,-foot, Stainless steel, Supplied with L-foot. • Waterproof roofing sealant-Use a sealant appropriate
to your roofing material.Consult with the company
0 Flange nut(3/8") a Use one per L-foot to secure rail to currently providing warranty of roofing.
L-foot. Stainless steel. Supplied with L-foot
Page
29
U N I RAC:: Unirac Code-Compliant Installation Manual SolarMount
[3.2.] Installing SOLARMOUNT & SMHD with top mounting clamps
This section covers SOLARMOUNT standard and SMHD 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.
--,..-„,.. --\ ---..,...,<.:%14.44,,;.„ . _,..- / .‘-- -<.. ..,.,,,„.-- --- --''' . ,,,,
I. Mid Clamp
•
� : i
,-. End Clamp
L-foot -!_ ;- }
�
SOLARMOUNT Rail :
SOLARMOUNT Rail
Figure 6.Exploded view of a flushmount installation mounted with L feet.
1
Table 18. Wrenches and Torque All top down clamps must be installed with anti-seize
A lubricant to prevent galling and provide uniformity in
Wrench *Recommended clamp load. 1/4"-20 hardware used in conjunction
size torque (ft-lbs) with top down clamps must be installed to 10 ft-lbs
of torque. When using UGC-1, UGC-2, WEEB 9.5 and
%" hardware '/b' I 0 A WEEB 6.7, 1/4"-20 hardware must be installed to
'A" hardware 9/c 30 10 ft-lbs of torque. Additionally,when used with
Torques are not designated for use with wood connectors a top down clamp, the module frame cross section
*With anti=seize must be boxed shaped as opposed to a single, 1-shaped
member.Please refer to installation supplement 910:
Galling and Its Prevention for more information
on galling and anti-seize and installation manual
225.6: Top Mounting Unirac Grounding Clips
and WEEBLugs for more information on Grounding
Clips.
Pago
30
SolarMount lInirac Code-Compliant Installation Manual :1 U N I RAC
[3.2.1] Planning your SOLARMOUNT installations
The installation can be laid out with rails parallel to the rafters The length of the installation area is equal to:
or perpendicular to the rafters. Note that SOLARMOUNT rails • the total width of the modules,
make excellent straight edges for doing layouts.
• plus 1 inch for each space between modules (for mid-
Center the installation area over the structural members as clamp),
much as possible.
• plus 3 inches (11/2 inches for each pair of end clamps).
Leave enough room to safely move around the array during
installation. Some building codes and fire codes require
minimum clearances around such installations, and the user
should be directed to also check The Code'.
Peak
c
I , I
— l I I I
... -a) A 9 e 0
b Low-profile _ cd
w High-profile �� mode — "'
mode
d
GI
r I - - -
Gutter
Figure 7.Rails may be placed parallel or perpendicular to rafters.
31
:!U N I RAC Llnirac Code-Compliant Installation Manual SolarMount
[3.2.2] Laying out L-feet for top clamps
L-feet (Fig. 8), in conjunction with proper flashing equipment
and techniques, can be used for attachment through existing
roofing material, such as asphalt shingles,sheathing or sheet ii
metal to the building structure.
Use Figure 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 rafters. Figure 8
Adjust as needed, following the guidelines in Figure 9 as
closely as possible.
�--Overhang 33% L max
- Foot spacing/---;r-1
�� Rail-Span "LI, I
11 1
1, lk,±i.., u',_ ....
. .,
II
1 , II ,I 11 II 1' I
�f\ 1 I� �I II II �, ,
1'/2 13�a° to �ii) ,. 9. .
f r .a lr
a r.
I 1, u
I
`N\ _ / 1 Note:Modules must be
Lower roof edgy Rafters centered symmetrically on the
(Building Structure) rails(+/-2").If this is not the
case,call Untrac for assistance.
Figure 9.Layout with rails perpendicular to rafters.
32
we
SolarMount linirac Code-Compliant Installation Manual :P U N I RAC
[3.2.3] Laying out standoffs OW
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 1
standoff lag screw holes within the installation area. \*k..„„„„.b...k....:v
Remove the tile or shake, if necessary, underneath each stand-
off location, exposing the roofing underlayment. Ensure that Figure 10.Standoff used in conjunction
the standoff base lies flat on the underlayment,but remove no with an L-foot.
more material than required for the flashings to be installed
properly.
The standoffs must be firmly attached to the building structure.
If multiple high-profile rows are to be ,
Overhang 33% L max•-•01 I Foot spacing/ i installed adjacent to each other, it may not
'! Rail Span, L 1• , be possible for each row to be centered above
if // 1 ' 1! the rafters. Adjust as needed, following the
`°�
1 /a tl � . .i • guidelines of Fig. 12 as closely as possible.
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i1 Installing standoffs:
Lower roof edge Drill 3/16 inch pilot holes through the
i \ - Rafters --1( underlayment into the center of the rafters at
(Building Structure) each standoff location. Securely fasten each
standoff to the rafters with the two 5/16"lag
Note:Modules must be centered symmetrically on the rails screws.
(+/-2'9.If this is not the case,call Unirac for assistance.
Ensure that the standoffs face as shown in
Figure 11. Layout with raiLs perpendicular to rafters.perpendicular to rafters. Figure 11 or 12.
Unirac standoffs ( 1-5/8"O.D.) are designed ii
for collared flashings available from Unirac.
Install and seal flashings and standoffs
Module overhang per ,- using standard building practices or as the
module manufactuer's /f \ company providing roofing warranty directs.
data sheet / I
( I) 'I.,
I I i I
1i ,
1 I _J,.
j �� ! l I Foot -
spacing/ •`I..-2/8„
�, `„r',, l ...r • Rail Span "L"
1 '1 1 i I1 j
i
I I
- I 1 - -;„ . _
Overhang 33% L,max
I
Lower roof edge I
I II
Rafters (Building Structure)
Note:Modules must be centered symmetrically on the rails
(+/-2*).If this is not the case,call Unirac for assistance.
Figure 12.Layout with rails parallel to rafters.
Page
33
L:UN I RAC Unirac Code-Compliant Installation Manual SolarMount
[3.2.4] Installing SOLARMOUNT rails
Keep rail 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 Figure 13.Splice bars slide into the footing bolt
splice. (Reference installation manual 908, Splices/Expansion Joints.) slots of SOLARMOUNT rail sections.
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 Top clamp --
will cool them more and may enhance performance in hotter climates. bolt slot -
Slide the 3h-inch mounting bolts into the footing bolt slots. Loosely attach ���
the rails to the footings with the flange nuts.
Mounting
Aligning the Rail End:Align one pair of rail ends to the edge of the �- lots�. s
installation area (Fig. 15 or Fig. 16). Footing , '
The opposite pair of rail ends will overhang the side of the installation bolt slot
area. Do not trim them off until the installation is complete.
If the rails are perpendicular to the rafters (Fig. 15),either end of the rails
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 Figure 14.Foot-to-rail attachment
must face the lower edge of the roof. Securely tighten all hardware after
alignment is complete (20 ft ibs).
Mount modules to the rails as soon as possible. Large temperature
changes may bow the rails within a few hours if module placement is
delayed.
Edge of installation area -
i
rn I , _
vi
I —77
am me — .. ._.
i ., I Edge of installation area
Figure 15.Rails perpendicular to the rafters. Figure 16.Rails parallel to the rafters.
34
SolarMount Llnirac Code-Compliant Installation Manual : U N I RACJ
[3.2.5] Installing the modules
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 ��� 11 _
flange nut (both installer provided) fastened to the module bolt `..
slot at the aligned (lower) end of each rail. It will prevent the ., ^ti, I 1
lower end clamps and clamping bolts from sliding out of the rail �',s.. , ,'
\\
slot during installation. , ;;
If there is a return cable to the inverter, connect it to the first _ __, --
module. Secure the first module with T-bolts and end clamps at = J
the aligned end of each rail. Allow half an inch between the rail I _____I -"" " -
ends and the end clamps (Fig.18). Finger tighten flange nuts, J boxes
center and align the module as needed, and securely tighten the
flange nuts (10 ft lbs). Figure 17
Installing the Other Modules: Lay the second module face 1/2" minimum Module frame
down (glass to glass) on the first module. Connect intermodule
cable to the second module.Turn the second module face up `-
(Fig. 17). With T-bolts, mid-clamps and flange nuts, secure the 1/4" module bolt
adjacent sides of the first and second modules. Align the second and flange nut
module and securely tighten the flange nuts (Fig. 19). �_�
For a neat installation, fasten wire management devices to rails
with self-drilling screws. End clamp I'' — Rail
Repeat the procedure until all modules are installed. Attach the
outside edge of the last module to the rail with end clamps. Figure 18
Trim off any excess rail,being careful not to cut into the roof.
Allow half an inch between the end clamp and the end of the rail
(Fig. 18). Module frames
1/4" module bolt
�1 f and flange nut
,—,,i
' 1 Rail
-- Mid clamp
Figure 19
Png.
35
•
IP UN I RAC Llnirac Code-Compliant Installation Manual SolarMount
[3.3] Installing SOLARMOUNT with bottom mounting clips, HD rail only
This section covers SOLARMOUNT rack assembly where the installer has elected to use bottom mounting clamps to secure mod-
ules to the rails. It details the procedure for flush mounting SOLARMOUNT HD systems to a pitched roof.
4 •-.'•. f V modules (lace down)�` `.>-.\
J• \` ``„�, `� S \ \Wit'
Solarrnount ruU 7 ,--' , ' ..--1,-
.-'------ I
/ _,..,;..,.., \
f •-\,. ' ey 1
r 1
r // `
✓ Fooling bolt slot
}
r l:
Bottom mounting dip
``
Figure 20.Installing bottom clips
Table 19. Wrenches and torque le 1
Wrench *Recommended Stainless steel hardware can seize up, a process
size torque (f gibs) A called galling. To significantly reduce its
" hardware ib" p likelihood, (1)apply lubricant to bolts,preferably
XI, hardware '/rb" I0 an anti-seize lubricant, available at auto parts
stores, (2)shade hardware prior to installation,
Note:Torquee specifications do not apply to lag bolt and(3)avoid spinning on nuts at high speed.
connection, See Installation Supplement 910, Galling and Its
',With antf-sefxe Prevention, at www.unirac.com.
J
rAx,
36
•
SolarMount Llnirac Code-Compliant Installation Manual =C•U N I RAC
[3.3.1] Planning the installation area Distance between
lag bolt contors
Decide on an arrangement for clips, rails, and L-feet (Fig. 21). 2'%-2%.. --2��e-2%
Use Arrangement A if the full width of the rails contacts the 4— Distance between —►
modulo mounting bolos 11
module. Otherwise use Arrangement B. --— — - — - --
Caution:If you choose Arrangement B, either PV module A
(1) use the upper mounting holes of the L-feet or t i „(2) be certain that the Lfeet and clip positions don't fir '�
conflict. 1`� Module bolt Clti�
If rails must be parallel to the rafters, it is unlikely that they
u Rail—► Ef h
can be spaced to match rafters. In that case,add structural rE,_ t foot— - „__
supports-either sleepers over the roof or mounting blocks .—i, u t,,,ll •
beneath it. These additional members must meet code; if in *r-
doubt, consult a professional engineer. Distance between
— lag bolt ccntors ----1.
Never secure the footings to the roof decking alone. Such an 1/2J/8".. — - 1/2 7/8"
arrangement will not meet code and leaves the installation .--Distance between --a
and the roof itself vulnerable to severe damage from wind. module mounting holes
Leave enough room to safely move around the array during t, r__ - B
installation. The width of a rail-module assembly equals the __
length of one module. Note that L-feet may extend beyond -t a 1`
the width of the assembly by as much as 2 inches on each 1
side. The length of the assembly equals the total width of the _it...
l' 11
modules. --
n-n _
s
Figure 21. Clip Arrangements A and B
Page
37
IP U N I RAC Unirac Code-Compliant Installation Manual SolarMount
[3.4] Installing SOLARMOUNT with grounding clips and lugs
Clips and lugs are sold separately,
UGC-I
11 Top
A 40 I mounting .,1 0,
clamps 67"-
Module 1
,% I I
r' T-bolt
peik Nib ° ,
Figure 25.Slide UGC-1 grounding
cE Ius I
�, � I UGC-1 rs Ii1 a clip into top mounting slot of rail.
Intertek .-- 1_.. - .. ,. _ 1- Torque modules in place on top of 1
Conforms to i clip.Nibs will penetrate rail anod-
UL Standard 467 ization and create grounding path
through rail
SOLARMOUNT®rail (any type)
Figure 26. Insert a bolt in the
WEEBLug aluminum rail or through the
clearance hole in the stainless steel 1
flat washer:Place the stainless steel
flat washer on the bolt,oriented
so the dimples will contact the
O - , ;,, , aluminum rail.Place the lug portion
I ., l 1~j;' 1 on the bolt and stainless steel j
I flat washer.Install stainless steel
flat washer,lock washer and nut, WEEBLug ,,4
�
y ,- � � -.,_ Tighten the nut until the dimples are :.'- --� l
s
completely embedded into the rail 0 . - I
�. j
. .....
and lug, The embedded dimples make
Stainless Steel Flat a gas-tight mechanical connection
'�' "Yry
Washer(WEEK) and ensure good electrical connection f ,� ''0`
between the aluminum rail and the :F f�-,-.
lug through the WEEK. ��r .==y"`� s,�pq� ►OUN�T®rail
AL„,. I .,,, o- (any type)
Figure 27. UGC-1 layout for even Figure 28.Single wire grounding
and odd number of modules in row. with spliced rails.
` l"denotes places to install UGC-1. KEY j _ _-
— rr
PV modulo
> -.. - 1 .. X ,.� . -
.� i —J SOLARMOUNT roll(any type)
.1 _ A_,_ _..X - A Roll splloo
f e ____ - « X Grounding lug I. _ -
even Number of Modules in row — Copper wire
Odd Number of Modules in row
Single grounding
wire for entire array -----.._.
rase
40
I
IP U N I RAC Unirac Code-Compliant Installation Manual SolarMount
[3.3.2] Laying out the installing L-feet for bottom clips
L-feet, in conjunction with proper flashing
equipment and techniques, are used for
installation through existing low profile _ _I I _ ^ _ _ I iL _
roofing material,such as asphalt shingles I I I I
I,
or sheet metal. They are also used for most i I Install
ground mount installations. To ensure that "` -:, Second '''- AM
the L-feet will be easily accessible during 0
flush installation: il 11
1,
• Use the PV module mountin holes 1 ii 1� SolarMount Rails ii II ii 111 1
nearest the ends of the modules. II
I I i,
• Situate the rails so that footing bolt E - .-- _ - . a u. o
slots face outward. 0
tnstiii First
The single slotted side of the L-foot must I i I I
always lie against the roof with the double- - -i 1 - - �_ - - 1 i - -
slotted side perpendicular to the roof.
Lower III H
Foot spacing(along the same rail) and rail roof ---,\
overhang depend on design wind loads. edge
Rafters
Install half the L-feet:
• If rails are perpendicular to rafters Figure 22.Layout with rails perpendicular to rafters.
(Fig.22), install the feet closest to
the lower edge of the roof.
• If rails are parallel to rafters
(Fig.23), install the feet for one of
the rails, but not both.
Rafters y---- ---------- y Install L-Feet
Ensure that the L-feet face as shown in First
Figure 22 or Figure 23. -s IN 4-
Hold the rest of the L-feet and fasteners
aside until the panels are ready for the
installation.
C`-4- I:
4 A 44D 0♦-
-s I::\ �"
F
■i- t-
Blocks t Install L-Feet Second
Figure 23.Layout with rails parallel to rafters.
38
SolarMount Unirac Code-Compliant Installation Manual aa'UN I RAC
[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 �.
rail slots free of debris that might cause bolts to bind in the Clip
slots. slots
Consider the weight of a fully assembled panel. Unirac recom- ` Mounting
mends safety lines whenever lifting one to a roof. / , slots
Align thepanel with the previouslyinstalled L-feet. Slide 3/8
A b'n _ Flange
inch L-foot mounting bolts onto the rail and align them with Fooling 0 `-`• nut
the L-feet mounting holes. Attach the panel to the L-feet and bolt slot
finger tighten the flange nuts. ® �'
Rails may be attached to either of two mounting holes in the
footings (Fig. 24).
• Mount in the lower hole for a low, more aethetically Figure 24.Leg-to-rail attachment
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.
Page
39