GAF FeltBuster 48-in x 250-ft 1000-sq ft Felt Roof UnderlaymentYour roof deserves the best, and that's exactly what the GAF FeltBuster 48 in x 250 ft 1000 sq ft Felt Roof Underlayment provides. With its advanced technology and high quality materials, this underlayment offers superior protection against moisture, wind, and other potential damage. The robust felt construction acts as a strong barrier, preventing water from seeping into your home and safeguarding it from the elements. Say goodbye to worries about