Roofing Underlayment Materials Types

Underlayment is laid beneath every other roof covering including your insulation.

Roofing underlayment materials types.

The more an inspector understands about a roof s components the better he can spot problems and deficiencies during an inspection. The underlayment is an often unseen yet crucial component of today s residential roofing systems it is the layer of waterproofing material that protects the roof deck or substrate from water intrusion in case the outer layer suffers damage. There are three main types of roofing underlayment. Roofing underlayment is a water resistant or waterproof barrier material that is installed directly onto your roof deck.

Understanding roof underlayment a complete roof system is more than just the final roofing material. As for the term modified polymers are used to modify bitumen to improve certain characteristics such as elasticity and strength. In summary roofing underlayment is an essential component to the roofing materials ability to withstand the elements protect a home s interior and prolong its service life. There are 3 main types of underlayment that homeowners can choose from when it comes to protecting their roof.

A roof system is comprised of multiple components and roof underlayment is an important element of an effective roof system designed to protect both life and property. This used to be the most popular choice for roof underlayment until it was replaced by synthetics. In the roofing industry this is a common term to refer to asphalt and other asphalt materials used in built up roofing asphalt shingles and underlayment.