Roof Layer In New Construction

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.

Roof layer in new construction.

Each layer has a specific purpose that when combined with the other components provides protection to your home. The roof decking is the layer of plywood or o s b. You can usually see the underside of plywood decking from the attic. Most often made out of plywood this roof layer is installed over the framing in a typical roof install.

Also called sheathing the roof deck is the layer installed over the framing and provides the base on which everything else is laid. Roof deck prep and repair. The material used for decking varies but most homes have plywood or osb sheets. Underlayment is usually felt or fiberglass paper that covers the entire roof deck.

Ice water barrier this self adhering water proof and self sealing membrane is applied to the roof deck. The roof decking acts as a unifying structure by tying the trusses joists together. If you re tearing off old roofing the roofer can look for damage that needs to be repaired once the deck is bare. It provides structure by tying the trusses and joists together.

Most roof decking is made from sheets of plywood. Decking wood sheathing the decking is the base on which everything else is laid. Roof decking is typically 7 16 and comes in 4 x8 sheets. This synthetic layer which replaces felt paper covers the entire roof deck and is the second line of defense against leaks after the shingles.

The roof is a system composed of layers of different materials that work together to keep wind and weather out of 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. Nailed to the trusses or rafters.