HomeMy WebLinkAboutLETTER Solar 685 Steamer Dr C 2021-04-21SANDBOX SOLAR, 430 NORTH COLLEGE AVE, FORT COLLINS, CO 80524
Subject: Structural Certification for Installation of Residential Solar
re job:FRANK RESIDENCE, 685 STEAMER DR, ESTES PARK, CO 80517
Attn.: To Whom It May Concern
ROOF 1:
175 mph Ground Snow:73 psf
C Min Roof Snow:NA psf
ROOF 1:
AHZ Consulting Engineers Inc.
Professional Engineer
projects@ahzengineers.com
Code:2015 IBC (ASCE 7-10)
Ult Wind Speed:
Exposure Cat:
After review of the field observation report and based on our structural capacity calculations in accordance
with applicable building codes, the existing roof framing supporting the proposed solar panel layout has
been determined to be:
requiring new 2x10s to be sistered to the existing roof rafters. After upgrades, the roof is
adequate to support the imposed loads.
4/21/2021
A field observation was performed to document the existing framing of the above mentioned address. From
the field observation, the existing roof structure was observed as:
Shingle roofing supported by 2x6 Rafter @ 24 in. OC spacing. The roof is sloped at approximately
26.6 degrees and has a max beam span of 15 ft between supports.
Design Criteria:
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