GAF TigerPaw 48 in x 250 ft 1,000 sq ft Polypropylene Roof Underlayment Digital Torque Wrenches 8 Maximum Pressure (PSI) 3200 EB11700 8 Maximum Pressure (PSI) 3200 Engine Type 4 cycle OHV Engine Included Hose Pressure Washer Power Type Gas Connection Type M22 Universal Threaded Twist On Hose & Trigger Handle Assembled Height (in Complete your collection with a mirror that is sure to make a lasting impression with all guests non woven construction provides at least 600% (ie 7 times) greater tear strength than standard #30 felt in addition to water resistance Helps remove nearly twice as much damaging moisture from your roof deck as the leading synthetic non breathable underlayment Tiger paw roof deck protection resists wrinkling and buckling that can telegraph through your roof shingles and detract from its finished appearance Less chance of blow off light grey surface is cooler in hot weather than conventional black felts