{"product_id":"malarkey-secure-start-plus-synthetic-roof-underlayment-48-in-x-250-ft-roll-white","title":"Malarkey Secure Start Plus Synthetic Roof Underlayment 48 in. x 250 ft. Roll, White","description":"\u003ch1\u003eMalarkey Secure Start Plus Synthetic Roof Underlayment 48 in. x 250 ft. Roll, White\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eMalarkey Secure Start Plus is a lightweight synthetic steep-slope roof underlayment with anti-skid technology for a more walkable, safer installation surface. This roll measures 48 in. x 250 ft. in white and installs under asphalt shingle roofing. Pair it with Malarkey shingles for a complete steep-slope roofing system.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-skid surface:\u003c\/strong\u003e Anti-skid technology securely holds the underlayment in place and provides a more walkable surface for greater installation safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-ply construction:\u003c\/strong\u003e Five plies with a synthetic polyolefin reinforcement layer deliver greater tear strength than conventional felt paper.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater-resistant layer:\u003c\/strong\u003e A non-porous monolithic polypropylene layer helps resist water penetration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight handling:\u003c\/strong\u003e Lightweight synthetic design makes it easier to carry and position on the roof than heavy felt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteep slope use:\u003c\/strong\u003e Designed specifically as an underlayment for steep-slope roofing applications.\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, 48 in. x 250 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\u003eSecure Start Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSynthetic polypropylene with polyolefin reinforcement layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor \/ finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 in. x 250 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 in. x 250 ft. per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePly construction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 plies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLightweight synthetic underlayment\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\u003e48 in. x 250 ft. per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteep slope roofing underlayment\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 measures 48 in. wide by 250 ft. long, covering approximately 1,000 sq. ft. before laps. Size the job by roof area and add extra for head laps and hip and ridge waste per your shingle manufacturer's underlayment installation requirements.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned as a steep-slope underlayment for use beneath asphalt shingle roofing, including Malarkey shingle systems. Underlayment, shingles and accessory flashings are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in one order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One roll of Malarkey Secure Start Plus synthetic underlayment measuring 48 in. x 250 ft. in white.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much area does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A full roll is 48 in. x 250 ft., roughly 1,000 sq. ft. before accounting for laps and waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How does it compare to felt underlayment?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Its 5-ply synthetic construction with a polyolefin reinforcement layer provides greater tear strength than conventional felt paper, and the anti-skid surface is more walkable.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it water resistant?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, a non-porous monolithic polypropylene layer helps resist water penetration.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is it installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It rolls out on the roof deck under shingles and is secured per the manufacturer's instructions; the anti-skid surface helps hold it in place while you work.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it be used on any roof slope?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is designed as a lightweight synthetic underlayment for steep slope roofing applications.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eSecure Start Plus is a solid choice when you want tear resistance and walkability that felt cannot match, especially on long runs and steeper pitches where footing matters. Follow Malarkey's underlayment instructions for lap direction and fastening so the shingle warranty terms are met. Size rolls to your roof area and plan laps before ordering. Pair with Malarkey shingles and compatible flashing for a full-system approach.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eRoof underlayment installation is done at height on potentially slick surfaces, so use appropriate fall protection and check the manufacturer's instructions for steep-slope use.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder Malarkey Secure Start Plus synthetic underlayment today for a safer, more durable roof deck layer.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Malarkey","offers":[{"title":"Default Title","offer_id":67805012885718,"sku":"MAL1031","price":275.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/ProductImage_MAL1031.jpg?v=1793125161","url":"https:\/\/buildsupplyus.myshopify.com\/products\/malarkey-secure-start-plus-synthetic-roof-underlayment-48-in-x-250-ft-roll-white","provider":"Buildsupply","version":"1.0","type":"link"}