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Portland,Oregon 1
■ s T A Kansas City, Missouri
t • d.Yi- STRUCTURAL.—
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December 17,2019
Polygon Northwest Company
703 Broadway Street,Suite 510
Vancouver,WA 98660
Re: Plans 40A/B/D and 60A/B/D—Roshak Ridge
Vista Structural Engineering, LLC,was asked to address the installation of plywood shear panel over gyp board on
the interior face of a 2-sided plywood shearwalls. We recommend approval of the installation of plywood shear
panel over gyp board on the interior face of walls with use of 10d x 3" nails, in place of the 8d x 2%"nails specified
on the shear wall schedule noted on the plans. This recommendation holds true for all 40A/B/D and 60A/B/D
plans being built in the Roshak Ridge Development.
If our firm can be of further assistance,please feel free to call or email.
Sincerely,
Vista Structural Engineering,LLC
PROP
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Dennis Heier,P.E. O 2 t *
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EXPIRES:6130/2041 .2,
VISTA STRUCTURAL ENGINEERING, LIC
14718 NW DELIA STREET PHONE: 971.645.0901
PORTLAND, OREGON 97229 - 1 - VISTASTRUCTURAL.COM