Definitions: O - Roofing & waterproofing

open valley flashing

open valley flashing is flashing applied in roof valleys, under and between roofing installed on adjacent sections of the roof. open valley flashing has ridges which channel rainfall down the valley and prevent leakage under roofing material.


References - open valley flashing

See the following for additional open valley flashing information:



Service Professionals that can help with open valley flashing issues



Common projects involving open valley flashing



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