GAF Tigerpaw 48 in x 100 ft 400 sq ft Polypropylene Roof Underlayment Railing Baluster Inspired by an 1800s ad Weather Resistant Fencing Inspired by an 1800s ad for a Victorian corset 10 Voltage (v) 18v Cordless Tool Type Jig Saw Battery Amp Hours 1 Series Name TigerPaw Coverage Area (Sq may also be used with non asphaltic systems such as slate wood metal Excellent walkability: special surface helps provide excellent walkability versus conventional felts or typical synthetic underlayments Stronger: non woven construction provides greater tear strength than standard #30 felt Lightweight: at approximately 16 lbs it's easier to load and handle on the roof than conventional felts Cooler to work with: light grey surface is cooler in hot weather than black felts UV resistant: resists UV degradation for up to 180 days