FE0800 #15 4Sq Felt Plain 36x432Sf Hal

2_22601643 MFG #: FE0800
Number 15 Plain Felt 4 Square is an asphalt roofing felt made of a specially formulated organic sheet which has been fully saturated with waterproofing asphalt. This product is strong, flexible, and impervious to water penetration, but will allow water vapor to pass through at a restricted rate. It is preconditioned to help it lay flat and remain stable after installation on a roof deck. Guidelines are provided every 2" across the sheet to aid the roofer in keeping asphalt shingles aligned. Number 15 Plain Felt 4 Square is designed to be used as an all-purpose protective waterproof sheet in construction projects. It can be installed as a temporary roof cover during house construction and then serve as a permanent shingle underlayment after shingles are installed. It can also act as a temporary protection if shingle blow-off occurs. It may also be used as a waterproof breather sheet on side walls beneath an outer finish.