{"product_id":"base-sheet-200-sq-ft-roll-bsg","title":"Base Sheet, 200 sq. ft. Roll","description":"\u003cp\u003eA roofing base sheet is the first ply in a low-slope roof assembly, laid directly over the deck or over insulation before the ply sheets, modified bitumen cap sheet or torch-applied membrane goes down. It gives the rest of the assembly a uniform, asphalt-compatible surface to bond to and separates the finish plies from the substrate.\u003c\/p\u003e\n\u003cp\u003eBase sheets are supplied in rolls and are either mechanically fastened with plates and nails or set in hot or cold adhesive, depending on the deck type and the membrane system being built up over them. Side and end laps are run per the membrane manufacturer's layout so that no fasteners or seams telegraph through the finished roof.\u003c\/p\u003e\n\u003cp\u003eThis roll is sold by coverage area rather than by length, which is the usual way base sheet and roll roofing are counted on a job \\u2014 two squares of roof area per roll.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRoll coverage of 200 sq. ft., or two roofing squares\u003c\/li\u003e\n\u003cli\u003eServes as the first ply of a built-up or modified bitumen low-slope roof assembly\u003c\/li\u003e\n\u003cli\u003eAsphaltic construction compatible with hot asphalt, cold adhesive and torch-applied cap sheets\u003c\/li\u003e\n\u003cli\u003eCan be mechanically fastened with nails and plates over nailable decks\u003c\/li\u003e\n\u003cli\u003eProvides a separation and bonding layer between the deck and the finish membrane\u003c\/li\u003e\n\u003cli\u003eLapped side and end seams for continuous coverage across the roof field\u003c\/li\u003e\n\u003cli\u003eRolled format unrolls flat for layout and cutting with a utility knife\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFirst ply over nailable decks in built-up roofing assemblies\u003c\/li\u003e\n\u003cli\u003eBase layer beneath modified bitumen cap sheets, torch- or mop-applied\u003c\/li\u003e\n\u003cli\u003eLow-slope roofs on residential porches, additions and flat-roof extensions\u003c\/li\u003e\n\u003cli\u003eRe-roofing over prepared existing low-slope substrates\u003c\/li\u003e\n\u003cli\u003eDeck separation layer beneath asphaltic membrane systems\u003c\/li\u003e\n\u003cli\u003eSmall commercial flat roof sections and mechanical curbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Roofing base sheet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly Position:\u003c\/strong\u003e First ply \/ base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Roll\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e 200 sq. ft. (2 squares)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof Slope:\u003c\/strong\u003e Low-slope\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By:\u003c\/strong\u003e Each (roll)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARCH Building Supply","offers":[{"title":"Default Title","offer_id":55048723693907,"sku":"BSG","price":128.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/7743\/4195\/files\/arch-placeholder-coming-soon_3c3e1767-790c-4d45-b83d-fc12b848dada.webp?v=1790259793","url":"https:\/\/arch-9365.myshopify.com\/products\/base-sheet-200-sq-ft-roll-bsg","provider":"ARCH","version":"1.0","type":"link"}