wind load, design pressure ratings, and the vsi product
TRANSCRIPT
Wind Load, Design Pressure Ratings,
and the VSI Product Certification
Program
Vinyl Siding Institute, Inc.
National Housing Center
1201 15th Street, NW Suite 220
Washington, DC 20005
(202) 587-5100
July 8, 2019
© 2019 Vinyl Siding Institute, Inc. All Rights Reserved.
This publication has been prepared by the Vinyl Siding Institute, Inc. (VSI) as a service to the industry. The information provided in this
publication is offered in good faith and believed to be reliable, but is made WITHOUT WARRANTY, EXPRESS OR IMPLIED, AS TO
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER MATTER. This publication is not intended to
provide specific advice on particular products or processes. VSI and its members do not assume any responsibility for the user's compliance
with applicable laws and regulations.
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90 100 110 120 130 140 150 160 170 180 190 200 210
Test Pressure (lbf/ft
2 )
Wind Speed (mph)
Wind Speed Corresponding to Test Pressure For Vinyl and Insulated Vinyl Siding
ASD
Ultimate
14
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90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250
Test
Pre
ssu
re (
lbf/
ft2)
Wind Speed (mph)
Wind Speed Corresponding to Test PressureFor Polypropylene Siding
ASD
Ultimate
16