{"product_id":"alpha-protech-rex-synfelt-synthetic-roof-underlayment-10-square-roll-asphalt-free-polyprop","title":"Alpha ProTech REX SynFelt Synthetic Roof Underlayment 10 Square Roll, Asphalt-Free Polypropylene","description":"\u003ch1\u003eAlpha ProTech REX SynFelt Synthetic Roof Underlayment 10 Square Roll, Asphalt-Free Polypropylene\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eREX SynFelt is a 100% asphalt-free synthetic roof underlayment made of high-strength woven polypropylene with an anti-slip coating on both sides. One roll covers 10 squares and installs lighter, stronger and cooler than 30 lb asphalt felt. UV-resistant for up to 6 months of exposure, with a pre-printed nailing pattern.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20X Stronger:\u003c\/strong\u003e 20 times stronger than 30 lb asphalt felt and won't tear off, buckle or curl when wet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7X Lighter:\u003c\/strong\u003e 7 times lighter per square than 30 lb asphalt felt for easier handling on the roof.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Sided Grip:\u003c\/strong\u003e Anti-slip walking surface on both faces for additional installer grip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Squares per Roll:\u003c\/strong\u003e Covers 10 squares per roll for fewer rolls and faster installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Month UV Rating:\u003c\/strong\u003e UV-resistant and can be exposed for up to 6 months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNailing Pattern:\u003c\/strong\u003e Pre-printed nailing pattern speeds accurate fastening.\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\u003eAlpha ProTech\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, 10 squares\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREX SynFelt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-strength woven polypropylene fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ texture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnti-slip coated walking and back surface\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\u003e10 squares (1,000 sq ft) per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Square\/Roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUV exposure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAsphalt content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% asphalt-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRolled out over deck, fastened per pre-printed nailing pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoofing underlayment beneath shingles and other roof coverings\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\u003eEach roll covers 10 squares (1,000 sq ft) of roof deck. Divide total roof square by 10 and add rolls for laps, ridges and waste on cuts.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUsed as underlayment beneath asphalt shingles and other steep-slope roof coverings. Pair with drip edge, starter and ridge products; fasteners are sold separately. Complements other REX-line weather barrier products.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One roll of REX SynFelt synthetic underlayment covering 10 squares.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many rolls do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Divide your roof area in squares by 10, then add a roll for overlaps and cutting waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How does it compare to felt?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is 7X lighter per square and 20X stronger than 30 lb asphalt felt, and it won't tear off, buckle or curl when wet.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it slippery to walk on?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Both sides carry a specially formulated anti-slip coating for added grip.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How long can it be exposed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is UV-resistant and can be left exposed for up to 6 months.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it contain asphalt?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, REX SynFelt is 100% asphalt-free.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eFor steep-slope reroofs, synthetic underlayment like REX SynFelt is the safer choice: the two-sided anti-slip coating and lighter roll weight reduce installer fatigue and slip risk, especially on 6\/12 and steeper pitches. The 10-square roll means fewer changes on large planes, and the 6-month exposure window is valuable when roofing phasing slips into wet or hot seasons. Follow the pre-printed nailing pattern and use cap nails where local code or the shingle manufacturer requires them.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eUse fall protection and roof anchors on pitched roofs, and always wear slip-resistant footwear even on anti-slip underlayment.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder REX SynFelt synthetic underlayment for a lighter, stronger 10-square roll on your next roof.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Alpha ProTech","offers":[{"title":"Default Title","offer_id":53524469088623,"sku":"REXSFU10","price":197.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/ProductImage_REXSF10.jpg?v=1790284435","url":"https:\/\/superarbor.io\/products\/alpha-protech-rex-synfelt-synthetic-roof-underlayment-10-square-roll-asphalt-free-polyprop","provider":"Super Arbor","version":"1.0","type":"link"}