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Design Pressure Ratings Explained for Clearwater Windows and Doors
By @bestentrydoorreplacementypw029
How Design Pressure Ratings Are Read In The Field A design pressure rating, often shortened to DP, is the number that shows how much wind pressure a window or door is built to resist before performance starts to break down. That rating is not a sales slogan. It comes from testing the whole assembly, including the frame, glass, sash, hardware, anchors, and installation method. In Clearwater, the difference between a window that merely looks sturdy and one that is ac
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