{"product_id":"johns-manville-70000207-johns-manville-1-7-in-lwc-pre-assembled-base-sheet-fasteners-carton-of-500","title":"Johns Manville 1.7 in. LWC Pre-Assembled Base Sheet Fasteners, Carton of 500","description":"\u003ch1\u003eJohns Manville 1.7 in. LWC Pre-Assembled Base Sheet Fasteners, Carton of 500\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJohns Manville 1.7 in. Lightweight Insulating Concrete (LWC) Pre-Assembled Base Sheet Fasteners are purpose-built fasteners for anchoring base sheets over lightweight insulating concrete roof decks. Each carton contains 500 fasteners. They are FM Approved and Miami-Dade County Approved for use in JM commercial roofing assemblies.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.7 in. length:\u003c\/strong\u003e Sized for fastening base sheets into lightweight insulating concrete decks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-assembled:\u003c\/strong\u003e Pre-assembled design speeds installation of base sheet attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk carton:\u003c\/strong\u003e Carton of 500 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 stringent coastal code requirements.\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\u003e70000207\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 500 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\u003e1.7 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\u003e500 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\u003e39 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 set by the base sheet fastening pattern in your JM assembly specification. At a typical perimeter-and-field pattern, estimate fasteners per square foot from the spec and multiply by roof area; this carton supplies 500 fasteners.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eIntended for base sheet attachment over lightweight insulating concrete in Johns Manville bituminous roofing systems; consult JM's LWC base sheet fastener data sheet for deck-specific fastening patterns. 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 500 pre-assembled 1.7 in. LWC base sheet fasteners.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: When do I use the 1.7 in. size?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Use the length specified in your JM assembly for the thickness of LWC deck you are fastening into; the 1.7 in. and 1.2 in. sizes cover common LWC depths.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Are they approved for code work?\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 attach?\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 do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Follow the fastening pattern in your JM specification; multiply the required fastener density by the roof area, with 500 fasteners 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 and installation guidance, setting fasteners per the specified pattern and depth.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eLWC decks require fasteners designed to embed and hold in insulating concrete, so do not substitute standard insulation fasteners. Verify the LWC depth on your project to pick between the 1.2 in. and 1.7 in. sizes, and confirm the fastening pattern from your FM or Miami-Dade approved JM assembly. Keep a supply margin on hand since LWC conditions can require pattern adjustments. Pair with JM base sheets and plies per the specified system.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eRoof tear-off and base sheet installation involve 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 1.7 in. LWC Pre-Assembled Base Sheet Fasteners, carton of 500, for your LWC deck project.\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":53521632788847,"sku":"70000207","price":162.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/lightweight-concrete-fastener-2512x1413px_780c7848-76e6-4312-8b49-42c404613dc3.png?v=1790181200","url":"https:\/\/superarbor.io\/products\/johns-manville-70000207-johns-manville-1-7-in-lwc-pre-assembled-base-sheet-fasteners-carton-of-500","provider":"Super Arbor","version":"1.0","type":"link"}