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The Differences Between the 3 Types of Roof Underlayment

The Differences Between the 3 Types of Roof Underlayment

One of the many decisions you’ll need to make during roof replacement is what type of underlayment to install. The underlayment is the waterproof barrier that acts as the roof’s last line of defense against water intrusion.

The Differences Between the 3 Types of Roof Underlayment

In today’s post, Mascon, Inc. discusses the three main types of underlayment to help you make an informed decision.

Asphalt Saturated Felt

This type of roof underlayment is normally used in properties located in temperate climates. It was the most commonly used option before the invention of rubberized asphalt and non-bitumen synthetic underlayment. Asphalt saturated felt is made from refined crude oil residue, which effectively repels water and prevents wood resin stains from forming.

Rubberized Asphalt

For homeowners who want a quicker installation process, rubberized asphalt is perfect. It performs just as well as saturated felt and non-bitumen synthetic underlayment, despite its self-adhesive peel-off membrane feature. Rubberized asphalt is highly effective at preventing water damage and is a particularly good option for both residential and commercial roofing systems located in humid areas.

Non-Bitumen Synthetic

Non-bitumen synthetic underlayment is special because it does not absorb moisture at all. For this reason, it’s highly recommended for climates that experience extreme temperatures. Made from polypropylene or polyethylene fibers, which have lightweight features and high resistance to mold growth, non-bitumen synthetic underlayment can significantly reduce the risk of premature roof failure.

Mascon, Inc., the leading roof inspection company in the area, provides excellent services for both commercial and residential properties. You can call us at (512) 376-5096 for more information. You can also fill out our contact form to receive a free roof evaluation. We serve homeowners in Austin, TX, and nearby areas.