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County of Washington (OR)

Oregon Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
SolarAPP+ StatusTargeted
Wet Stamps RequiredNone
Fire Setback Enforced1

Codes

NEC Code Version
2023
Code List

2022 OREGON STRUCTURAL SPECIALTY CODE

2025 OREGON ENERGY EFFICIENCY SPECIALTY CODE

2023 OREGON RESIDENTIAL SPECIALTY CODE

2023 OREGON ELECTRICAL SPECIALTY CODE

2022 OREGON MECHANICAL SPECIALY CODE

2023 OREGON PLUMBING SPECIALTY CODE

2010 OREGON MANUFACTURED DWELLING INSTALLATION SPECIALTY CODE

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
1
Revision Required
1
New Planset Required For Module Swap
1

Stamps

Ee Stamp Required On SLD
No
Wet Stamps Required
None
Structural Calculations Required
No
Stamp Location On Plans
Unspecified
Date On Stamps
N/A

Fire setbacks

Fire Setback Enforced
1
Setback Notes
  •  If the panels cover more than 1000 square feet, the “General Pathway Requirements” of section 304.9.1 need to be shown on the roof plan. (Roof slope 2:12 or greater.)
  • If the panels cover 1000 square feet or less, the following applies: (Roof slope 2:12 or greater.)
  • a) Where the array does not exceed 25% of the total roof area, a 12 inch unobstructed pathway shall be maintained along each side of any horizontal ridge.
  • b) Where the array exceeds 25% of the total roof area, a minimum of one 36 inch unobstructed pathway from ridge to eave, over a structurally supported area, must be provided in addition to a minimum 12 inch unobstructed pathway along each side of any horizontal ridge.

Structural & loads

Wind Speed
96
Wind Notes

https://ascehazardtool.org/

Snow Load
45
Snow Load Notes

https://ascehazardtool.org/


https://hazards.atcouncil.org/#/snow?lat=45.5412047&lng=-&address=15793%20NW%20Telshire%20Ln%20%2C%20Beaverton%2C%20OR%2097006

Reducible Snow Load Allowed
1
Max Attachment Spacing
48
Structural Notes

If it is a manufactured home, we are disqualified from prescriptive path submittals.

Please provide:

-stamps on plans

-PE letter

-structural calcs

Minimum Ground On Roof
#10

Electrical

AC Disconnect Required
Yes
Allowed POI
Line Side Taps,Meter Adapter,Load Side Taps,PV Breaker
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.91

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements


Please Fill Prescriptive Path Checklist (See Attachment). This will determine is SE stamps will be required or not

Site

Property lines required

Roof Plan


Attachment Detail

1. Roofing material shall be metal, single layer wood shingle or shake, or not more than (2) layers of composition shingle.

2. The combined weight of the modules and racking does not exceed 4.5 pounds per square foot. The attachments must be spaced no more than 48 inches on center in any direction.

The attachments shall be spaced at no greater than 24 inches on center in any direction where: a) Ground snow load exceeds 25 psf. b) Located within 3 feet of a roof edge, hip, eave, or ridge or c) Wind exposure is B or more and the wind speed is 95 MPH or more, or wind exposure C and wind speed is 85MPH or more.

3. Maximum module height above roof shall be 18 inches from top of module to roof surface in accordance with Figure 305.4(1)

Ground mount

Ground Mount Fencing Required
No
Ground Mount Notes
  • Setback requirements vary by lot.
  • Go to this website. https://wcgis1.co.washington.or.us/Html5Viewer/index.html?viewer=Intermap
  • Enter the address numbers, then select the correct address on the left-hand side. 
  • Click on District Overlay Information. This page will provide the setbacks. 
  • Frost depth is 12”.
  • Ground screws allowed with engineering.

records request online:

Service Request - Create Request Page: County

Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the County of Washington (OR) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.