Materials
What is Synthetic Underlayment?
Roofing Glossary · Materials
Definition
A non-woven polypropylene or polyester fabric used in place of traditional felt paper beneath roof shingles. Synthetic underlayment is significantly stronger, more tear-resistant, and lighter than felt, and it resists moisture absorption during installation delays. It is the preferred underlayment for architectural shingle installations and is required by several shingle manufacturers as a condition of full wind warranty.
Related Roofing Terms
→
UnderlaymentA water-resistant or waterproof barrier material installed directly over the roof decking and beneat...
→Ice and Water ShieldA self-adhering, waterproof membrane installed on the roof deck in vulnerable areas — typically the ...
→DeckingAlso called sheathing, the decking is the structural boards or panels — typically 7/16" or 1/2" OSB ...
More Materials Terms
Get an Instant Roof Estimate
Now that you know what synthetic underlayment means, put that knowledge to work. Enter your address to get a free satellite-based estimate and compare standardized quotes from pre-vetted local contractors.
Get My Free Estimate