HomeMy WebLinkAbout1320 ALFORD ST - SPECIAL INSPECTIONS - 2/19/2018HOSKINS ENGINEERING, INC.
564 South Oneida Way
Denver, CO 80224
303-548-6510
February 19, 2018
Jim Dischner
2963 W 915` Place
Denver, CO 80260
Re: Egress Window Openings
Davis Residence
1320 Alford Street
Fort Collins, Colorado
Dear Mr. Dischner:
As requested, a site visit was performed February 15, 2018 at the above address to observe the existing foundation and
structural components with respect to installation of 3 new basement windows and modification of 3 existing basement
windows for egress. The residence is a ranch -style frame structure with brick exterior over a basement built in 1963. For
the purpose of this report, the residence faces west.
It is our understanding that one new 4'x4' egress window opening near the east end of the south wall and two new 6'x 4'
window openings near the south end of the west wall of the basement are to be installed in accordance with Fort Collins
Building Department requirements and the 2015 IRC building code.
It is our opinion that removal of concrete and embedded reinforcing steel to accommodate the new windows will require
structural enhancement. A steel angle frame should be bolted to the wall at the top and sill levels as shown in the attached
sketch. The spaces between the angle and adjacent wall should be filled with non -shrink grout. The required loads in Fort
Collins include a roof snow load of 30-psf, and ultimate wind load of 129-mph exposure `C'. The concrete foundation
wall is considered adequate to support the structural loads after the window openings are installed.
It is our understanding that one existing window opening near the west end of the south side and two existing window
openings on the east side of the basement are to be modified to accommodate emergency egress from the basement in
accordance with City of Fort Collins Building Department requirements. The bottoms of the existing openings are to be
extended to a sill height on the order of 38 inches. The width of the openings will not be altered. The required loads in
Fort Collins include a roof snow load of 30-psf, and ultimate wind load of 129-mph exposure "C". In our opinion, the
foundation walls are considered adequate to support the structural loads after the window openings are modified.
It is recommended that any existing cracks near the windows be routed and filled with Simpson ETI- LV or equal epoxy
adhesive prior to cutting for the modified openings. Overcuts should also be filled with epoxy adhesive.
The recommendations in this report are based on observable conditions. HOSKINS ENGINEERING, INC. does not
accept any liability for unknown defects in the design or construction of the original structure at this site.
It is recommended that the area adjacent the new window is bac1cfilled in thin lifts and compacted to minimize backfill
settlement. The ground surface should be sloped to direct surface drainage away from the window and foundation.
We trust this letter provided you with the information you required. If you have any questions or need additional
information, please do not hesitate to contact us.
Respectfully Submitted,
HOSKINS ENGINEERING. INC.
Paul E. Hoskins, PE
HEI EGRESS DAVIS 2-19-18
FLOOR JOISTS
6x4x3/4' STEEL ANGLE
TO SUPPORT JOISTS OVER
WINDOW
�-6 INCH MIN CONCRETE
ABOVE WINDOW OPENING
OR USE ALTERNATE BOLT
LOCATION.
SEC A -A
6x4x3/4' STEEL ANGLE
TO SUPPORT JOISTS OVER
WIN 4' 4' \
A
FLOOR JOISTS
6X3.5X3/8' STEEL ANGLE
TO SUPPORT JOISTS OVER
WINDOW
`6 INCH MIN CONCRETE
ABOVE WINDOW OPENING
OR USE ALTERNATE BOLT
LOCATION.
SEC A -A
6x3.5x3/8' STEEL ANGLE
TO SUPPORT JOISTS OVER
WIN OW
4-4.
_ A
•
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EXIST. 8' `
3/161
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EXIST. 8'
3/161 I
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CONCRETE WALL `o
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A
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j 4x1/4' STEEL ANGLE
4x1/4' STEEL ANGLE J
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STEEL ANGLE FRAME
T
STEEL ANGLE FRAME
EPDXY
BOLT LOCATION.
W/ EPDXY ANCHORS
BOLT LOCATION.
TO CONCRETE WAW1
LL
4'x8'xi' PL.
TO CONCRETE WALL
4'x8'xj' PL.
(TYP)
5/8.0 HOLES W/ 1/2'0 BOLTS
(TYP)
5/8'0 HOLES W/ 1/2.0 BOLTS
4' MIN. PEN. INTO CONCRETE
4' MIN. PEN, INTO CONCRETE
e
�3/l6 (TYP)
WEST WALL WINDOW OPENINGS (INSIDE VIEW)
e
3/16 (TYP)
SOUTH WALL WINDOW OPENING (INSIDE VIEW)
EGRESS WINDOW MODIFICATION 1320 ALFORD ST., FT. COLLINS, CO
DAVIS RESIDENCE HOSKINS ENGINEERING, INC. FEBR. 19 2018
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