Why did high winds blow out the curtain on my commercial roll-up sheet door?
High winds blow a commercial roll-up door curtain out of its tracks when extreme negative or positive wind pressures exceed the guide channel depth or shear strength of the windlocks. Unreinforced non-wind-rated doors bow significantly under storm gusts, pulling the corrugated steel edges completely out of the vertical guides. SAFETY WARNING: Never attempt to force,
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