HomeMy WebLinkAbout137 N Roosevelt Ave - Special Inspections/Engineering - 07/01/2015STRUCTURAL OBSERVATION REPORT
Job No. LNHC1-15342
Lenoch Construction
PO Box 1487
Ft. Collins, Colorado 80522
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Date Signed: July 1, 2
Attention: Dan Fry
Re: Roof framing observation at the residence at
137 N. Roosevelt, Ft. Collins
Dear Mr. Fry:
I am a Professional Engineer licensed in multiple states and
have been performing structural inspections for over 5000
buildings over the last 15 years. Prior to becoming an engineer,
I experienced a full lifetime of construction, including hands on
framing experience. I offer these credentials as a basis for my
opinions herein.
On June 11, 2015 I observed the roof framing regarding an
addition being added. Structural design criteria includes:
building code is 2012 International Residential Code (IRC) as
amended by the local building jurisdiction; snow load of 30 psf;
wind speed is 100 mph 3-sec. gust, exposure C; seismic zone B.
I reviewed the plans prepared by Larsen Structural Design,
their Project No. LSD 1940, dated 3-30-2015 for the overframing
between the new addition and the existing west wing addition to
the original home. The framing specified is excessive, would
require removal of most of the existing west wing addition roof
and some of it not constructible due to existing conditions. I
recommend that the existing west wing roof framing supporting the
overframing be installed per the attached Photo Sheet No. 1, with
2x4 struts under five (5) of the rafters and two (2) of the hips.
I recommend that the new overframing have a ridge consisting of
(2) 2x10, with 2x8 rafters over 9' and 2x6 rafters under 91,
horizontal spans. Bear the ridge and rafters on a flat 2x8 nailer
fastened to the existing roof at the valley.
On June 12, 2015 I observed the installation of the framing
as noted above and approve of the installation as built.
Inasmuch as the site review of an existing structure for the
purpose of observing the structural conditions requires that
Engineered for the way you build ...
... Designed for the way you live.
• certain assumptions be made regarding existing conditions, and
because some of these assumption may not be verifiable without
expending additional sums of money or destroying otherwise
adequate or serviceable portions of the building, the client
agrees that, except for negligence on the part of the Engineer,
the Client will hold harmless, indemnify and defend the Engineer
from and against any and all claims arising out of the
professional services the Engineer provides, with the stipulation
that if conditions not identified in this report are discovered
during subsequent inspections or repair work, this engineer should
be contacted for appropriate re-evaluation and recommendations.
Thank you for retaining us to perform this structural
evaluation service. Please feel free to contact our office if you
have any further questions.
Very truly yours,
MARK BENJAMIN, PE, MSCE, SECB, CPHC
Certified in the practice of structural engineering
Certified Passive House Consultant
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Attachments: one