Report • V
City of Tigard RECEIVEP
Building Division
• - - 13125 SW Hall Blvd, Tigard, OR 97223 SEP 2 8 2022
Phone: 503.718.2439 Fax: 503.598.1960 CITY OF TIGARD
TIGARD Inspection Line: 503.639.4175 BUILDING DIVISION
www.tigard-or.gov
2010 Oregon Solar Installation Specialty Code
Check List for Prescriptive Installation of Roof-Mounted
PhotoVoltaic Solar Panel System
Property Information
Installation Address: 8397 SW Durham Ln
City: Tigard Zip: 97224
Owner's Name: Sonja Kuske Date: 09-27-2022
Contractor's Name: ION Developer LLC CCB #: 230394
Design Parameters of the Property/Structure
If"Yes", does not
Flood Hazard Is the installation ❑ Yes qualify for the
Area Located in a flood prescriptive path, follow
plain/flood way? X❑ No OSSC or ORSC for
design requirements.
Is the wind exposure Yes If"Yes", qualifies for
Wind Exposure "C" or less? ❑ No the prescriptive path.
Installations on detached Is the Ground Snow
single/two-family Load 70 psf or less?
dwelling/single/two- If"Yes", qualifies for
family townhomes x❑ Yes the prescriptive path.
and/or their accessory
Ground structures. ❑ No
Snow Load Is the Ground Snow
Installations on all Load 50 psf or less?
structures other than If"Yes", qualifies for
❑ Yes the prescriptive path.
above
❑ No
1
I:/Building/Fors/PhotoVoltaic-Checklist02-01-11.docx
Ms►2079 -{ c5-31
Is the construction
material wood and does n Yes
Type of If"Yes", qualifies for
the construction qualify
Construction as "conventional light U No the prescriptive path.
frame" construction?
Is the spacing 24 inches
or less?
Pre-engineered trusses. 0 Yes If"Yes", qualifies for
the prescriptive path.
❑ No
Roof framing
members Is the spacing 24 inches
or less?
Nominal lumber. If"Yes", qualifies for
Yes the prescriptive path.
n No
Is the combined weight 0 Yes
of the PV modules and If"Yes", qualifies for
racking less than or ❑ No the prescriptive path.
Solar equal to 4.5 psf?
installation Is the solar installation
layout in accordance x Yes
with Section 305.4(3) of If"Yes", qualifies for
Elthe 2010 Oregon Solar No the prescriptive path.
Code?
n Metal
Single layer If roofing material is
Roofing Check the type of ❑ of wood one of the three types
material roofing material shingle/shake checked, qualifies for
Max. two layers the prescriptive path.
x❑ of composition
shingle.
Is the roof mounted X Yes
Connections of solar assembly
the solar assembly connected to roof No If"Yes", qualifies for
framingblockingthe prescriptive path.
to the roof or
directly?
2
I:/Building/Forms/PhotoVoltaic-Checklist02-01-11.docx
. frt.g12022-0w
❑ Yes If"Yes", qualifies for
Is the gauge 26 or less?
❑ No the prescriptive path.
115 lbs for 60 inch
spacing or less?
❑ If"Yes", qualifies for
Yes the prescriptive path.
❑ No
Minimum Uplift rating
of Clamps? 75 lbs for 48 inches
spacing or less?
If"Yes", qualifies for
❑ Yes the prescriptive path.
❑ No
Attachment of
roof mounted If the spacing falls
solar systems Spacing of clamps? Minimum 24 inches within 24 inches and 60
directly to inches Maximum 60 inches inches, qualifies for the
standing seam prescriptive path.
metal panels Width of roofing If the width of the panel
panels? 18 inches or less is less than 18 inches,
inches qualifies for the
prescriptive path.
Minimum#10 at 24
inches o/c?
Size and spacing of If"Yes", qualifies for
fastener? ❑ Yes the prescriptive path.
❑ No
Is the roof decking of
WSP min. '/2" thickness, ❑ Yes
decking connected to If"Yes", qualifies for
framing members ❑ No the prescriptive path.
w/min. 8d nails @
6"/12" o/c?
Is the height less than or
Maximum 18 inches equal to 18 inches?
Height of the from the top of the If"Yes", qualifies for
solar modules module to the roof El Yes the prescriptive path.
surface. ❑ No
3
1:/Building/Forms/PhotoVoltaic-Checklist02-01-11.docx
04,51-2622-oi3545/
Submittal Documents required for Prescriptive Installations
Show the location of the PV system in relation to buildings, structures,
property lines, and, as applicable, flood hazard areas.
Site Plan Details must be clear and easy to read.
Minimum size of the plan is 8.5 x 11 inches.
Attach a simple structural plan showing the roof framing (rafter size, type, and
spacing) and PV module system racking attachment.
System must be shown in sufficient detail and clarity to assess whether it
Structural Plan meets the prescriptive construction requirements as listed earlier above in the
matrix.
Minimum size of the plan is 8.5 x 11 inches.
PV Modules
Manufacturer: SILFAB
Model Number: SIL-380 HC
Listing Agency:
4
I:/Building/Forms/PhotoVoltaic-Checklist02-01-11.docx
M,S i 202voo3se
i : :::'::• : :i :i :: : :: i: : : i:�::.:.:.:: :i • :: :':':i :: :.x:'i: : : :•:': : �•
*•���iii«i•Qi«i«•«•«•«e«•«•:«•«•�«•«i«•«s«•«•«•«i«i«•«•«i«i«i«•«•«•«•«•«i«i«•«i«❖«i«•.i«b•«•«i«s«•«04•J«•«•:•«•:«i«•:•:.«•«!::•:•«•«•�«•:•«•«•«!«•:•«•:•«i0«•«•••«•9►���
.,
..A. ++•�
.••.•+
Signature Certificate "`:
•+, •
i%t Reference number:ARAQA-AMRDZ-CGSPT-PD8TC •��;
•
:••.O'•. '••••
:•••+ Vs•
•s i
AM
'••••' Signer Timestamp Signature ..•+•;
;y0 ..,
•+, ,,.,. a,,,,,,. . .,.. W ,...�...=.,..w •.+.
.•41'••• Dustin Davidson �" '••'
;O•S Email:dustin.davidson@ionsolar.com i +•0:
❖`'At' Sent: 27 Sep 2022 21:22:29 UTC •�•�.�
��•.; Signed: 27 Sep 2022 21:22:29 UTC _.,. <..,.v,. ;•�:
%% ;IP address:216.21.162.207 •�+;:
':•V
Location:Orem,United States :vs:,
WI V
♦.. ••.
1+�•i
..•�.' Document completed by all parties on: �•;
•:'
❖: 27 Sep 2022 21:22:29 UTC •:•.+;
•
.4 . +'
•.+.•. .••,Page 1 of 1
d•••: 'O4',
.H 4•�•�,
•••••' '.•+:
•ii 4.4*
441: .
" . ;
..•L•iS
❖4
r❖.'.
4....'
i.•.'.
•0.4.4, ..r
••�+.• .••,
r+•++•' i•+•i
•i••' 4•4+;'
+ ;•t.,
y+•,1•414 ..:'
♦+ 1.`1,
�••••+ .•••;
..r .•.+:
f❖•r
.+•+.
44,64.
044 •.•'
a•••: :'
A,.., ❖.,
NV
..
.4444.
... 4•••••
•IA, s�i.
C••• Signed with PandaDocEl ;•;.;•
•i•:' PandaDoc is a document workflow and certified eSignature •,17+1 r•' ;.•i•<'
I••••, solution •
trusted by 30,000+companies worldwide. 1 !G— ,••4.,
••••. ❑ ++.:'
••.'.
..5,i i ii i,.i is i is :4 i i is i ii:•i i ii ii: : ii i i i i : ii :•ii ii icik i i i i i:':4':i'::i:'i'i:4::i': :•:•i�'4.••'t
ikAST-Z02-2---003
ciEC$ ION Solar
p� f; p" '4801 N University Ave.Suite 900
ION SEP 2 8 2012 Provo, UT 84604
luke.rowley@ionsolar.com
GI°hY OF TIGARD
3UILDING DIVISION
20 September 2022
RE:Sonja D Kuske Residence-8397 Southwest Durham Lane,Tigard,Oregon
To Whom It May Concern:
I have evaluated the roof structural elements of the residence for the required design loads and the additional load that
will be imposed by the proposed solar system.The existing roof information was provided by a site visit by an audit team
at ION Solar. Based on that site visit, it is my understanding that the roof framing information is as follows:
Roof Structure: Pre-Manufactured Wood Trusses with 2x4 Top Chords @ 24"O.C.that appear to be in good
working order.
Roofing Material: Composition Shingle
The Required codes and loads are as follows:
Codes: 2019 OSSC,2021 ORSC
Risk Category: II
Wind Speed (3-Sec Gust, MPH): 96
Exposure Category: B
Ground Snow Load (psf): 36
Roof Snow Load (psf): 25
Roof Live Load (psf): 20(superseded by roof snow load)
After reviewing the existing roof framing information and in accordance with the structural calculations on sheet 5-5
which were performed according to the applicable codes and loads above,it is my recommendation that the existing
roof framing is adequate to safely and sufficiently support the required structural design loads and the weight of the
new solar system as is.Alteration or replacement of existing structural elements is not required.
This evaluation only applies to the areas of the roof that will be directly supporting the solar system and does not make
any recommendations for any other structural components of the building.The racking must be installed per the
manufacturer's recommendations.
The 5/16"x 3-1/2"zinc plated steel lag screw used to attach the solar system to the roof must be staggered to evenly
distribute the loads over the affected area and must penetrate the truss top chords with a minimum embedment depth
of 2.5"
THIS LETTER VOID UNLESS STAMPED
Sincerely,
A. Luke Rowley, PE
(cskED PR Ores
s
\\G I N fF /per
9 950P
OREGON
,9CgiV 11 ZG�cy 09/21/2022
NRO`N
FXPIRFS•19/21/94