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Roofing & Materials

Synthetic underlayment

A modern woven underlayment that is lighter, stronger, and more tear-resistant than traditional felt.

On a real claim

Synthetic underlayment is a woven or spun sheet, lighter and more tear-resistant than felt, used between the deck and the shingles. On a claim it is a covered material on most replacements and its spec often matters to the manufacturer warranty. What goes wrong: a carrier prices standard felt while the contractor installs synthetic, or the underlayment is left off entirely and forces a change order. Check that the product named on the estimate matches what you plan to install.

Common questions

What does "Synthetic underlayment" mean in Xactimate estimating?

A modern woven underlayment that is lighter, stronger, and more tear-resistant than traditional felt.

Where does "Synthetic underlayment" show up in a claim?

The term matters on estimates and scopes across the insurance restoration workflow. Browse the glossary for related terms.

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