Layers Of A Roofing System

Underlayment is usually felt or fiberglass paper that covers the entire roof deck.

Layers of a roofing system.

It provides structure by tying. Exploring the roofing layers 1. The roof deck is the structural foundation base for the roof system and is usually made of wood or plywood. Most roof decking is made from sheets of plywood.

Synthetic underlayment helps repel moisture and provides. Staggering the board joints is more energy efficient since it does not allow a continuous break in the insulation layer. Here are the layers of a roof in order of application bottom to top. The heating and cooling process specified.

Built up roofing bur membrane metal roofing modified bitumen roofing thermoset epdm roof membrane thermoplastic pvc tpo roof membrane garden green roofing system. The six most common roof classifications include. This is a cheaper method that uses fasteners to attach the membrane to the. Insulation over 2 thick needs to be installed in two layers with staggered board joints per the roofing manufacturer s instructions.

Most often made out of plywood this roof layer is installed over the framing in a typical roof install. This is always the outermost layer of the tpo roofing system.