The design pressure (DP) rating of a building is calculated using the wind speed of a specified location, the type of exposure the building has, the type of building, the average height of the roof (from eave to peak) and the zone of the wall and roof.
What does PG50 performance rating mean?
∎ CW = Product performance class. (CW took the place of C and HC) ∎ PG50 = Performance grade 50, designates Design. Pressure (DP) of 50. ∎ H = Product type is hung window.
What is the highest DP rating?
A higher DP value indicates a window or door that can withstand more wind, water, and/or structural load than a window with a lower DP. In practicality, a window or door with a structural DP rating of 50 has passed a structural test pressure of 75 pounds per square foot (equal to a 200 mph wind).
What is a good DP rating for a window?
15 to 50
How is DP rating calculated?
The design pressure (DP) rating of a building is calculated using the wind speed of a specified location, the type of exposure the building has, the type of building, the average height of the roof (from eave to peak) and the zone of the wall and roof.