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Synthetic roofing underlayment

$99.99Available

Warnings & cautions

Roofing work means working at height — always use proper fall protection, secure footing, and follow local building codes. Sealants and adhesives can irritate skin and eyes, so wear gloves and eye protection and read the product label before use. When in doubt, have a licensed roofer handle the install.

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  • Licensed & insured
  • Flat-rate US shipping
A lightweight synthetic underlayment that lays down flat and gives the whole roof a tough, water-shedding second layer under the shingles.

Product information

How to use

How to use

Roll out over clean decking, overlap each course, and fasten with cap nails or staples per the instructions. Keep it dry and covered until shingled.

Tips

Tips

One roll covers about 10 squares (1,000 sq ft) with standard overlap. Sizing varies by roof pitch and layout.

What’s inside

What’s inside

Woven polypropylene underlayment with a slip-resistant walking surface. UV-rated for temporary exposure.

Always read and follow the manufacturer’s instructions, and confirm the product fits your roof before installing. Roofing work is at height — use proper fall protection and follow local building codes.

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10-square roll

$99.99

Staging environment not the live site