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How to Install Flashing on a Roof | Mastering the Roof by GAF
GAF Mastering The Roof (chapter 13)
Flashing is used to seal and protects joints in a building from water penetration by direct the flow of water away from these otherwise vulnerable areas. For Flashing to function properly it is important that it is installed correctly. Learn more at: https://www.gaf.com/enus
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