{"product_id":"johns-manville-70000206-johns-manville-1-2-in-lwc-pre-assembled-base-sheet-fasteners-carton-of-1-000","title":"Johns Manville 1.2 in. LWC Pre-Assembled Base Sheet Fasteners, Carton of 1,000","description":"\u003ch1\u003eJohns Manville 1.2 in. LWC Pre-Assembled Base Sheet Fasteners, Carton of 1,000\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJohns Manville 1.2 in. Lightweight Insulating Concrete (LWC) Pre-Assembled Base Sheet Fasteners anchor base sheets over lightweight insulating concrete roof decks in JM commercial roofing systems. Each carton contains 1,000 fasteners. They are FM Approved and Miami-Dade County Approved for code-governed assemblies.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.2 in. length:\u003c\/strong\u003e Sized for fastening base sheets into shallower lightweight insulating concrete decks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-assembled:\u003c\/strong\u003e Pre-assembled design speeds base sheet attachment on the roof.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk carton:\u003c\/strong\u003e Carton of 1,000 fasteners supports large commercial reroof projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFM Approved:\u003c\/strong\u003e FM Approved for specified roofing assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMiami-Dade approved:\u003c\/strong\u003e Miami-Dade County Approved for demanding coastal jurisdictions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJM system component:\u003c\/strong\u003e Part of the JM fasteners and plates line for JM commercial roofing systems.\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\u003eJohns Manville\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e70000206\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 carton of 1,000 fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLightweight Insulating Concrete (LWC) Pre-Assembled Base Sheet Fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2 in. length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 fasteners per carton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFM Approved; Miami-Dade County Approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase sheet attachment over lightweight insulating concrete roof decks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35 lb per carton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBituminous commercial roofing over LWC decks\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\u003eCoverage is governed by the base sheet fastening pattern in your JM assembly specification rather than the carton. Estimate fasteners required by multiplying the specified density by roof area; this carton supplies 1,000 fasteners.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned for base sheet attachment over lightweight insulating concrete in Johns Manville bituminous roofing systems; choose the 1.2 in. or 1.7 in. length per your LWC deck depth and JM's data sheet. Base sheets and other system components are sold separately.\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 carton of 1,000 pre-assembled 1.2 in. LWC base sheet fasteners.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: When do I choose the 1.2 in. versus 1.7 in. size?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Select the length specified in your JM assembly for your LWC deck thickness; the 1.2 in. fastener suits shallower LWC depths.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Are they code approved?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, they are FM Approved and Miami-Dade County Approved.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What do they fasten?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e They anchor base sheets over lightweight insulating concrete decks in JM commercial roofing assemblies.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many cartons do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Determine the fastener density from your JM specification, multiply by roof area, and divide by 1,000 per carton.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How are they installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Install per JM's LWC base sheet fastener data sheet, placing fasteners per the specified pattern and embedment depth.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThe 1.2 in. length is the right choice when your LWC deck profile is shallower and the JM assembly calls for shorter embedment. Always confirm deck thickness on site before ordering, since the 1.2 in. and 1.7 in. sizes are not interchangeable in specifications. Follow the fastening pattern in your FM or Miami-Dade approved JM assembly and pair with JM base sheets and plies per the system. Overdriving in soft LWC reduces holding power, so set fasteners to the specified depth.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eBase sheet installation over concrete decks involves work at height and fastening tools, so follow JM installation guidance, fall-protection requirements, and local building code.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the Johns Manville 1.2 in. LWC Pre-Assembled Base Sheet Fasteners, carton of 1,000, for shallower LWC deck applications.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eProduct Documents:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.jm.com\/content\/dam\/jm\/global\/en\/commercial-roofing\/products\/assets\/brochure\/rs-9280-bituminous-product-guide.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstallation Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.jm.com\/content\/dam\/jm\/global\/en\/commercial-roofing\/products\/assets\/data-sheet\/rs-7104-lightweight-insulating-concrete-base-sheet-fastener-data-sheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":53521632723311,"sku":"70000206","price":303.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/lightweight-concrete-fastener-2512x1413px.png?v=1790181194","url":"https:\/\/superarbor.io\/products\/johns-manville-70000206-johns-manville-1-2-in-lwc-pre-assembled-base-sheet-fasteners-carton-of-1-000","provider":"Super Arbor","version":"1.0","type":"link"}