Why Design Pressure Matters for Tampa High-Wind Zones
How Design Pressure Is Calculated For Windows Design pressure, usually shortened to DP, is the amount of wind force a window, door, or opening can resist without failing under normal code conditions. In the field, the wrong DP rating usually shows up as movement, water intrusion, or hardware stress long before a catastrophic failure. DP is not just about gust speed. It reflects push and pull forces, which is why openings on different sides of the same house can nee