Window Dp Rating Chart. An impact window earns the dp rating where it fails and blows out of the opening. So, for every increase of 5 in dp, the wind speed is increased by 6mph.
So, for every increase of 5 in dp, the wind speed is increased by 6mph. An impact window earns the dp rating where it fails and blows out of the opening.
2 Window dp rating chart
An Impact Window Earns The Dp Rating Where It Fails And Blows Out Of The Opening.
So, for every increase of 5 in dp, the wind speed is increased by 6mph.