Roof Underlayment

Underlayment is an important part of a roofing system; it affects how long your new roof will last, how it looks, and how well it protects your home from leaks.

a wooden staircase leading up to a building

What is Roofing Underlayment?

Another factor that contributes to how your roof looks and how well it protects your home is the quality of the underlayment materials used, and whether it is properly installed.

Underlayment is a layer of material applied directly over roof decking boards before a shingled roof is installed. Several types of underlayment are available. In years past, asphalt-saturated paper (tar paper) was commonly used. Today rubberized asphalt, roofing felt, synthetic underlayment and even organic underlayment are available.

The purpose of underlayment is to create a water barrier that protects roof decking boards from moisture damage. It also provides a smooth, uniform surface for shingle application, and may help prevent penetration of heat and sound into the home. Rubberized or anti-skid underlayment also creates safer working conditions for roofing contractors.


Roofing Warranties

Types of Roof Underlayment

Felt vs. Synthetic Underlayment

Felt and Synthetic are the two most common types of underlayment used today. Felt products may be reinforced with fiberglass, and synthetic underlayment may be made of fiberglass, polyethylene, polypropylene or polyester. Both products come in a range of qualities and may come with features that minimize stretching, reduce tears, inhibit mold or add slip-resistance.

Synthetic underlayment costs more than felt, but is considered to be a high performance product with distinct advantages. It is lighter weight than felt and therefore much easier to work with, and it can be up to 600 times more tear resistant. This means it provides better leak protection, because it is less likely to tear around nails or from being walked on during the installation process.

All of the major roofing manufacturers provide complete roofing systems that include their recommended underlayment products. Generally, the use of the manufacturer’s specified underlayment is required to validate the full roof warranty.

See your Roof and Renovation Before You Commit with EXOVISION™

EXOVISION™ allows clients to see what their home will look like with their new shingles before they commit to a contract. Clients consult with our renovation experts to decide on the best replacement roof for their home. They can then get a preview of what their renovated home will look like through EXOVISION. If the client decides to use EXOVATIONS contractors for the renovation, the EXOVISION fee will be deducted from their price.

View Our Work

Check out our customer roof replacement reviews and browse through some roofing before and after photos to get a better idea of our work. If you would like to learn more about installing a new replacement roof for your home, contact us today!


Our team is dedicated to providing stress-free home exterior services on time and on budget. As a Georgia-based company, we have worked for years throughout these cities and their surrounding areas, building a reputation as a trustworthy remodeling company that customers can rely on. Our friendly staff is here to provide suggestions and resources to ensure the job gets done in the most efficient manner, so you can save time and energy when tackling your next project.

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