{"product_id":"manufacturer-varies-by-location-15-asphalt-felt-underlayment-roll-4-squares-standard-and-u","title":"Manufacturer Varies by Location 15# Asphalt Felt Underlayment Roll, 4 Squares - Standard and UL Listed","description":"\u003ch1\u003eManufacturer Varies by Location 15# Asphalt Felt Underlayment Roll, 4 Squares - Standard and UL Listed\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis 15# asphalt-saturated felt underlayment adds a moisture barrier against wind-driven rain between your shingles and the roof deck. Each roll covers 4 squares (400 sq ft). Choose the standard roll or the UL-listed version to suit your project requirements.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture barrier:\u003c\/strong\u003e Asphalt saturation improves waterproofing and helps prevent wind-driven rain from infiltrating under shingles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck protection:\u003c\/strong\u003e Adds an extra layer of protection between shingles and the roof deck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLays flat:\u003c\/strong\u003e Heavy-duty construction lays flat to help minimize wrinkling during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeable design:\u003c\/strong\u003e 15# felt has a permeability that allows the deck assembly to breathe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo versions:\u003c\/strong\u003e Available as a standard 15# roll or a 15# UL-listed roll, each covering 4 squares.\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\u003eManufacturer Varies by Location\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, 4 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\u003eFelt 15#\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15# 4 Square\/Roll (standard) and 15# UL 4 Square\/Roll (UL-listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsphalt-saturated felt (recycled paper and asphalt)\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\u003e4 squares (400 sq ft) per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ texture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsphalt-saturated felt sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResidential roofing underlayment beneath shingles\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 4 squares, or 400 square feet of roof deck, before laps. Size your order by roof area and account for overlap at laps, so plan on slightly more roll footage than the net roof area.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eInstalled under asphalt shingles over the roof deck (deck not included). Works with standard shingle systems; the UL-listed version is available when specifications call for a UL-classified felt.\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 15# felt underlayment covering 4 squares; choose the standard or UL-listed version.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each roll covers 4 squares, or 400 square feet, before lap allowances.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the felt made of?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e 15# roof felt consists of recycled paper saturated with asphalt.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Why use felt underlayment?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It provides an extra moisture barrier that helps keep wind-driven rain and other water from reaching the roof deck.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Will it lie flat during installation?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the heavy-duty design lays flat to help minimize wrinkling.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the two options?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One is a standard 15# felt roll and the other is a 15# UL-listed roll; both cover 4 squares.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eFor standard steep-slope shingle work, 15# felt remains a familiar, economical underlayment choice; step up to the UL-listed roll when job specs require it. Roll out horizontally from the eave with proper lap on each course, and fasten adequately to prevent wind lift before shingling. Order rolls by roof area, adding extra for laps and waste.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFelt underlayment can be slippery, especially when wet or dusty, so wear appropriate footwear and use fall protection while installing.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eAdd a 15# felt underlayment roll to your cart for dependable moisture protection under your shingles.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Manufacturer Varies By Location","offers":[{"title":"15# 4 Square\/Roll","offer_id":53524677132655,"sku":"F15","price":30.12,"currency_code":"USD","in_stock":true},{"title":"15# UL 4 Square\/Roll","offer_id":53524677165423,"sku":"F15UL","price":60.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/F15UL_0.jpg?v=1790285167","url":"https:\/\/superarbor.io\/products\/manufacturer-varies-by-location-15-asphalt-felt-underlayment-roll-4-squares-standard-and-u","provider":"Super Arbor","version":"1.0","type":"link"}