Roof Layer In New Construction

You can usually see the underside of plywood decking from the attic.

Roof layer in new construction.

Decking wood sheathing the decking is the base on which everything else is laid. Other materials such as corrugated metal reinforced concrete polystyrene and double tee are also used. Most roof decking is made from sheets of plywood. Each layer has a specific purpose that when combined with the other components provides protection to your home.

Water shield is the next roofing layer that creates a water proof barrier where ice or water can buildup near the roof eaves. It provides structure by tying the trusses and joists together. It s usually a peel and stick product that adheres directly to the roof deck. Also called sheathing the roof deck is the layer installed over the framing and provides the base on which everything else is laid.

Underlayment is usually felt or fiberglass paper that covers the entire roof deck. Roof decking is typically 7 16 and comes in 4 x8 sheets. Nailed to the trusses or rafters. The roof deck is the roof layer also called sheathing that is installed between the trusses joists and underlayment layer in a typical roof install.

The roof decking is the layer of plywood or o s b. The roof decking acts as a unifying structure by tying the trusses joists together. Most often made out of plywood this roof layer is installed over the framing in a typical roof install. If you re tearing off old roofing the roofer can look for damage that needs to be repaired once the deck is bare.

Roof deck prep and repair. The roof is a system composed of layers of different materials that work together to keep wind and weather out of your home. 3 starter shingles a narrow row of asphalt roofing the starter strip is nailed to the perimeter of the roof with a bead of adhesive on top that grips the underside of the first course of shingles keeping them in place during high winds.