Your roof isn’t just the shingles. There are many other parts that complete the entire roofing system. Roof and door replacement companies understand the importance of those other roofing components, such as the underlayment.

Here’s what you need to know about the roof underlayment and why it’s one of the most important parts of your roofing system.

What Is the Roof Underlayment?

The underlayment lies flat under the roofing materials. It has water-resistant properties. The role of the underlayment is to provide additional protection from the elements, particularly water. In case your shingles suffer some damage, your home will remain protected from water intrusion as long as the underlayment is intact. In case of a storm, even if your shingles are blown away, the underlayment will still serve as your home’s defense against the wind and rain until your roofer can make the necessary repairs or replacement.

The most common underlayment materials are rubberized asphalt, non-bitumen synthetic, and asphalt-saturated.

Rubberized Asphalt Underlayment

This underlayment has a higher concentration of rubber polymer and asphalt than other options. It’s completely waterproof. Due to the benefits that it offers, rubberized asphalt is costlier to purchase and install.

Consider getting a new rubberized asphalt underlayment as well as new entry doors at the same time. It’s often a good idea to do home improvements at the same time.

Non-Bitumen Synthetic Underlayment

Most homes in the U.S. have a non-bitumen synthetic underlayment. It’s better than the asphalt-saturated underlayment thanks to improved resistance to water penetration. This feature, coupled with reasonable pricing, makes it a cost-effective choice for most people.

Asphalt-Saturated Underlayment

The most affordable choice is the asphalt-saturated underlayment material. Before synthetic materials grew in popularity, this type of underlayment was the default option. It offers average water-resistance and costs much less than other choices, so it’s still a fine choice especially if you’re on a tight budget.

Whether you need new patio doors or a new roof underlayment, Abby Windows & Exteriors can help. Call us at (414) 209-0404 or contact us here for a free, no-obligation estimate.