{"product_id":"malarkey-mlkudl2-malarkey-right-start-udl-flexor-sbs-polymer-modified-underlayment-roll-2-square-coverage","title":"Malarkey Right Start UDL Flexor SBS Polymer Modified Underlayment Roll - 2 Square Coverage","description":"\u003ch1\u003eMalarkey Right Start UDL Flexor SBS Polymer Modified Underlayment Roll - 2 Square Coverage\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eMalarkey Right Start UDL Flexor is an SBS polymer modified fiberglass-reinforced underlayment supplied as a 2-square roll for steep-slope roofing. It installs as a primary underlayment beneath shingles and is approved for Class A assemblies under ASTM E108. One roll covers 2 squares and pairs with Malarkey shingle systems.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBS Modified:\u003c\/strong\u003e SBS polymer modified formulation delivers flexibility and tear resistance during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass Reinforced:\u003c\/strong\u003e The abbreviated item description confirms a fiberglass (FIB) mat construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Standard Listed:\u003c\/strong\u003e Meets ASTM D4601 Type II, D4869, D226 Type II and D6757 Type II.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eICC-ES ESR-3150:\u003c\/strong\u003e Holds ICC-ES report ESR-3150 and FBC Approval #14809.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A Rated:\u003c\/strong\u003e ASTM E108 Class A and ETL Listed for fire classification in approved assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Year Warranty:\u003c\/strong\u003e Backed by a Malarkey limited 10-year warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 Square Roll:\u003c\/strong\u003e Each roll covers 2 squares of roof area.\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\u003eMalarkey\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, 2 squares coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRight Start UDL Flexor\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\u003e2 squares\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSBS polymer modified fiberglass-reinforced underlayment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM D4601 Type II; ASTM D4869; ASTM D226 Type II; ASTM D6757 Type II; ICC-ES ESR-3150; FBC Approval #14809; ASTM E108 Class A; ETL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer warranty summary\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLimited Warranty (10 year)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlgae resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 lb gross per roll\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 2 squares (200 sq ft) of roof area. Order rolls by dividing your roof square count by two and plan laps per the manufacturer's installation instructions.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned as an underlayment beneath Malarkey asphalt shingle systems and other steep-slope shingle roofing. Shingles, fasteners and accessory flashings are sold separately.\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 One roll covers 2 squares, or about 200 square feet of roof deck before lap allowances.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What standards does it meet?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It meets ASTM D4601 Type II, D4869, D226 Type II and D6757 Type II, plus ICC-ES ESR-3150, FBC Approval #14809, ASTM E108 Class A and ETL listing.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is there a warranty?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the product carries a Malarkey 10-year limited warranty.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What installs over it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Asphalt shingles or other approved steep-slope roof coverings install over this underlayment.\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 gross item weight is 75 lb, so plan for two-person handling.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it algae resistant?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, algae resistance is listed as No for this item.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eSBS-modified underlayments like this Flexor roll give better cold-weather flexibility and nail-sealing than standard #30 felt, which is why they are common under premium shingle warranties. Roll it with the printed side out, maintain laps per the manufacturer's instructions, and confirm deck conditions and fastening patterns against ICC-ES ESR-3150. For a 30-square roof, order roughly 15 rolls plus waste.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eUnderlayment surfaces can be slippery, especially when wet or dusty; use fall protection and roof brackets when installing.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the Malarkey Right Start UDL Flexor 2-square roll for dependable SBS-modified protection under your next shingle roof.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Malarkey","offers":[{"title":"Default Title","offer_id":67619166028143,"sku":"MLKUDL2","price":95.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/298465_default_hero.jpg?v=1790702249","url":"https:\/\/superarbor.io\/products\/malarkey-mlkudl2-malarkey-right-start-udl-flexor-sbs-polymer-modified-underlayment-roll-2-square-coverage","provider":"Super Arbor","version":"1.0","type":"link"}