HomeMy WebLinkAboutSOLAR affidavit 8823 RECEIVED
AUGr 0 9 2023 Tom Petersen
Architects • Planners
BUILDING DEPARTMENT
By.
Construction Official August 8. 2023
Building Department for project at:
14 Loch Rannoch Way
Yarmouthport, MA 02675
Re: Solar Panel Installation-As-built Certification
Moriarty Residence
14 Loch Rannoch Way
Yarmouthport, MA 02675
Dear Sirs,
I've reviewed the as-built solar panel installation at this location to evaluate the existing roof
structure and the connection of the panels to the roof.
Criteria: Applicable codes: MA State Building Code-780 CMR,9 Edition
(2015 International Residential Code with MA Amendments)
2015 Wood Frame Construction Manual
Design roof load: 30 psf live load, 10 psf dead load,40 psf total load
Design wind load: 140 mph,35 psi', Exposure Category 'B'
My findings are as follows.
I. The new solar panels will imply an additional dead load of 3 psf. The existing roof structure
(2x8 roof rafters(a) 16 o.c, with collar ties and 2x10 ridge,span=+/- 14'-3-) is sufficient to bear this
additional load. Inaccessible,assumed or concealed structural members that were not documented
during the initial site analysis will be verified by the system installer prior to the system installation,
and any discrepancies will be reported to the Architect in writing.
2. The solar panels are attached to the roof with the solar panel mounting system, components and fasteners
as shown on the attached drawings. The mounting system, roof connections and connection spacing
are rated for 140 mph.
The as-built installation is in compliance with these specifications, building codes and all
manufacturers'requirements and recommendations.
I therefore certify that the actual installation complies with the applicable codes and design loads
mentioned above and is acceptable for approval. Please let me know if you have any questions
on this information. Thanks!
Sincerely yours. D Apc
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Tom Petersen
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Cc: Neal Holmgren, Solar Rising LLC
6 Country Lane• Howell,New Jersey 07731 •Telephone 732-730-1763,Fax 732-730-1783