A sealed roof deck is a critical engineering requirement within the IBHS FORTIFIED Home standards (required for Silver and Gold certification levels) that functions as a secondary defense against the elements.
Its primary role is to prevent water intrusion into the home’s interior in the event that the outer shingles are damaged or blown off during a hurricane or severe storm. By creating a water-resistant barrier directly on the roof deck, this system ensures that even if the primary roofing material fails under high winds, the structure remains protected from costly water damage.
Key features of a FORTIFIED roof system include:
- Sealed Seams: The deck is treated to ensure water cannot seep through gaps in the wood panels.
- Waterproof Barrier: It acts as a continuous shield that performs when conditions are at their worst.
- System Synergy: When combined with enhanced nailing patterns and reinforced roof edges, the sealed deck helps maintain the integrity of the home during storms with winds ranging from 150 to 180 mph.
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