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1800 W Ashton Blvd.
�` �'� Lehi, UT 84043
Structural Group
J. Matthew Walsh, PE Kirk M.Nelson,SE Samuel Brown, PE-Civil
Director of Engineering Structural Engineering Structural Engineering
James.walsht?a vivintsolar.com kirk.nelsonr?a vivintsolar.com sam.brown@a vivintsolar.com
January 27, 2020
Re: Post Structural Certification
Neves Residence
2 Sheffield R, West Yarmouth, MA
S-6096429; MA-05
To Whom It May Concern:
Pursuant to your request, a representative from our company conducted a post installation site visit under my
supervision and provided post installation photos for the above referenced solar panel installation. As you are
aware,this office initially prepared a structural assessment of the proposed solar panel installation,the adequacy of
the connections for this system and identified maximum spacing of the connections. The photographs show panel
support locations and spacing which conform to our structural assessment. Acceptable minor changes to the layout
include the panel position, support spacing less than or equal to 48", and/or additions or deletions of panels at roof
locations.
Based upon the post installation site visit, our office certifies the solar panel installation for this roof and that it was
in conformance to our structural assessment report dated August 5, 2019, EcoFasten Solar product installation
criteria, and the layout plan as specified in our report. This letter pertains only to the panel support attachments to
the roof framing and not the engineered photovoltaic panel products, components, panel positioning, or electrical
related installations/connections.
This certification is based on the 9th Edition Residential Code (2015 International Residential Code with
Massachusetts Amendments), professional engineering assessment and judgment and covers this dwellings
assessment for solar panel connections and support only.
Should you have any questions regarding the above or if you require additional information do not hesitate to
contact me.
Regards, evivi OF 44,4s q
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J. Matthew Walsh, SE, PE % \tip,
MA License No. 54057 / 4 �. tyATT N m
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