WINDOW AND DOOR PERFORMANCE GRADE CALCULATOR

Select the Province

Select the Geographical Location
(Closest to your Building)

m

Overall Building Height. 10m is the minimum building height

Open

Level terrain with only scattered buildings, trees or other obstructions, open water or shorelines.

Rough

Suburban, urban, or wooded terrain that extends upwind from a building and that is uninterrupted for at least 1 km or 10 times the building height, whichever is greater.

Classes:
R-Residential
LC-Light Commercial
CW-Commercial
AW-Architectural

Air Water

Specified Driving rain wind pressure

Structural

Specified wind load

Pa Pa
DRWP HWP
Pa kPa
Sheet1!D33 Sheet1!E33