{"product_id":"gcp-applied-technologies-652848-gcp-applied-technologies-34-in-x-70-ft-ultra-butyl-roof-underlayment-roll","title":"GCP Applied Technologies 34 in. x 70 ft. Ultra Butyl Roof Underlayment Roll","description":"\u003ch1\u003eGCP Applied Technologies 34 in. x 70 ft. Ultra Butyl Roof Underlayment Roll\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eGCP Applied Technologies Ultra underlayment is a butyl-based self-adhering roof underlayment supplied as a 34-inch by 70-foot roll covering 198 sq ft. It is ICC-ES approved and UL classified for use under roofing. One sell unit is one roll, weighing approximately 42 lb, providing about 1.9 squares of coverage.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e198 sq ft roll:\u003c\/strong\u003e Each 34 in. x 70 ft. roll covers 198 square feet, about 1.9 squares.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButyl self-adhering:\u003c\/strong\u003e Butyl-based self-adhering membrane for waterproof protection under roofing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eICC-ES approved:\u003c\/strong\u003e Listed as ICC-ES approved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL classified:\u003c\/strong\u003e UL classified per the listed standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42 lb roll:\u003c\/strong\u003e One roll weighs approximately 42 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGCP Applied Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e652848\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 roll, 34 in. x 70 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUltra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelf-adhering butyl roof underlayment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34 in. x 70 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e198 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per square\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.9 Sq\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eICC-ES Approved; UL Classified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eCoverage \u0026amp; How Much You Need:\u003c\/h2\u003e\u003cp\u003eOne roll covers 198 square feet (34 in. x 70 ft.), roughly 1.9 squares of roof area. Deduct for laps at side and end seams per the manufacturer's installation instructions when estimating rolls.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUse as a self-adhering underlayment beneath shingle, tile or metal roofing per the manufacturer's instructions; primers for porous substrates and compatible flashing membranes are sold separately. Follow GCP application requirements for temperature and substrate condition.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each roll covers 198 square feet, approximately 1.9 squares, before lap deductions.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What size is the roll?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The roll is 34 inches wide by 70 feet long.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it self-adhering?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is a butyl-based self-adhering underlayment membrane.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What approvals does it have?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is listed as ICC-ES approved and UL classified.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How heavy is a roll?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed item weight is approximately 42 lb.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is it installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Roll it onto a clean, dry, primed substrate per the manufacturer's instructions, laps and all, checking local code for eave and valley requirements.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eA 34-inch-wide butyl self-adhering roll is a workhorse for valleys, eaves, ridges and full-deck underlayment where ice and water protection is required. Verify substrate priming on porous surfaces and install within the manufacturer's stated temperature window for good wet-out. Order by squares, at roughly one roll per 1.9 squares, adding rolls for lap and detail waste.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSelf-adhering membranes are slippery when wet or dusty and can be hot to work in sun; wear slip-resistant footwear and follow safe ladder and roof-access practices.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the GCP Ultra 34 in. x 70 ft. butyl underlayment roll for watertight roof protection.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GCP Applied Technologies","offers":[{"title":"Default Title","offer_id":53529536069999,"sku":"652848","price":461.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/14489_default_hero.jpg?v=1790351148","url":"https:\/\/superarbor.io\/products\/gcp-applied-technologies-652848-gcp-applied-technologies-34-in-x-70-ft-ultra-butyl-roof-underlayment-roll","provider":"Super Arbor","version":"1.0","type":"link"}