HomeMy WebLinkAbout408 Cornell Ave - Correspondence/Engineering - 09/09/1998September 9, 1998
Project No: 1636-02-98
Infinity Home Improvement
Attn: Dale Bonertz
549 Dennison Avenue
Ft. Collins, Colorado 80525
Re: 408 Cornell; Ft. Collins, Colorado
Dear Mr. Bonertz,
9oa 1;,-2 311f
At your request and representing Shear Engineering Corporation, I conducted several
observations at the above referenced address on Tuesday, August 18, 1998. These observations
were in association with your plan for cutting two (2) larger windows in the southernmost
existing basement concrete foundation wall. The existing foundation wall is an eight foot (8')
high, 10" thick concrete wall. There are existing smaller basement windows where the proposed
larger windows will be located. The exterior wall of the residence has a full height brick veneer
and also supports frame wall, floor, live, roof and snow loads.
Based on my observations and the anticipated loading conditions from above at the window
locations, the installation of larger basement windows will not affect the overall structural
integrity of the foundation wall or the main structure above. However, window headers must be
placed to support the upper loads, since concrete structure which would remain for the new
window location, would be inadequate for support of the upper loads. Based on the anticipated
loading conditions, the thickness of the existing foundation wall (10") and the proposed window
opening size (54" wide by 49" high rough opening), the proposed header will consist of five (5)
1 3/4" x 7'/2" microllams (8.75").
Consideration should be made for current uniform building code egress requirements. These
include sill height requirements,
requirementsetc. egress square footage requirements, window well egress
,
If you have any questions, please call at (970) 226-5334.
Sincerely
Brian W. Shear, PE
Shear Engineering Corporation
BWS / mb
attachments
4836 S. College, Suite 12 Ft. Collins, CO 80525 (970) 226-5334 FAX (970) 282.0311