2025.0064.PV0005 Dorsey, Billy - Structural Engineering (13)RE:CERTIFICATION LETTER
Project Address: BILLY DORSEY
15442 107TH LOOP SE
YELM, WA 98597
Design Criteria:
- Applicable Codes = 2021 IEBC/IBC, 2021 IRC, ASCE 7-16 and 2018 NDS
- Risk Category = II
- Wind Speed = 97 mph, Exposure Category B, Partially/Fully Enclosed Method
- Ground Snow Load = 15 psf
- ROOF 1: 2 x 4 @ 24" OC, Roof DL = 7 psf, Roof LL/SL = 20 psf (Non-PV), Roof LL/SL = 10.6 psf (PV)
- ROOF 2: 2 x 2 @ 24" OC, Roof DL = 9 psf, Roof LL/SL = 20 psf (Non-PV), Roof LL/SL = 15 psf (PV)
To Whom It May Concern,
February 4, 2025
This document is the property of Barun Corp and cannot be reproduced without prior consent. It is site specific and shall not be transferred to any other property,
property owner, person(s), or entity. This document may include an expression of professional opinion by the engineer of record, which is based on his or her best
knowledge, information provided by others, and belief. Other professionals may have different opinions. Barun Corp reserves the right to amend and/or supplement this
document in the event additional information be uncovered or made available.
A structural evaluation of loading was conducted for the above address based on the design criteria listed above.
Existing roof structural framing has been reviewed for additional loading due to installation of Solar PV System on the roof. The structural
review applies to the sections of roof that is directly supporting the Solar PV System.
Based on this evaluation, I certify that the alteration to the existing structure by installation of the Solar PV System meets the prescriptive
compliance requirements of the applicable existing building and/or new building provisions adopted/referenced above.
Additionally, the Solar PV System assembly (including attachment hardware) has been reviewed to be in accordance with the
manufacturer’s specifications and to meet and/or exceed the requirements set forth by the referenced codes.
Sincerely,
BARUN CORP
Barun Corp | Design and Engineering | 610.202.4506 | chrisk@baruncorp.com | www.baruncorp.com
EXP 08/30/2025
Jeff
Onorati
Digitally signed
by Jeff Onorati
Date: 2025.02.04
07:36:11 -08'00'
ROOF PITCH
15°
10°
Limits of Scope of Work and Liability:
The existing structure has been reviewed based on the assumption that it has been originally designed and constructed per appropriate
codes. The structural analysis of the subject property is based on the provided site survey data. The calculations produced for this
structure's assessment are only for the roof framing supporting the proposed PV installation referenced in the stamped planset and were
made according to generally recognized structural analysis standards and procedures. All PV modules, racking and attachment
components shall be designed and installed per manufacturer’s approved guidelines and specifications. These plans are not stamped for
water leakage or existing damage to the structural component that was not accessed during the site survey. Prior to commencement of
work, the PV system installer should verify that the existing roof and connections are in suitable condition and inspect framing noted on
the certification letter and inform the Engineer of Record of any discrepancies prior to installation. The installer should also check for any
damages such as water damage, cracked framing, etc. and inform the Engineer of Record of existing deficiencies which are unknown
and/or were not observable during the time of survey and have not been included in this scope of work. Any change in the scope of the
work shall not be accepted unless such change, addition, or deletion is approved in advance and in writing by the Engineer of Record. The
Engineer of Record and Barun Corp claim no responsibility for misuse and improper installation.
IEBC IMPACT CHECK
IEBC IMPACT CHECK
RESULT
OK
STANDOFF HARDWARE EVALUATION FOR WIND UPLIFT
WIND UPLIFT DCRMOUNTING PLANE
OKROOF 2
RESULTS SUMMARY
BILLY DORSEY, 15442 107TH LOOP SE, YELM, WA 98597
MOUNTING PLANE STRUCTURAL EVALUATION
MOUNTING PLANE
ROOF 1
GOVERNING ANALYSIS
BARUN CORP
Barun Corp | Design and Engineering | 610.202.4506 | chrisk@baruncorp.com | www.baruncorp.com