{"product_id":"johns-manville-expand-o-flash-cf-ej-curb-to-wall-expansion-joint-cover-4-in-6-in-or-8-in-r","title":"Johns Manville Expand-O-Flash CF\/EJ Curb-to-Wall Expansion Joint Cover, 4 in., 6 in. or 8 in. Rubber Bellows","description":"\u003ch1\u003eJohns Manville Expand-O-Flash CF\/EJ Curb-to-Wall Expansion Joint Cover, 4 in., 6 in. or 8 in. Rubber Bellows\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJohns Manville Expand-O-Flash CF\/EJ curb-to-wall expansion joint covers are flexible, weatherproof exterior closures for expansion joint openings. Each cover combines a flexible rubber membrane with closed-cell foam bellows and two metal flanges. Offered in 4 in., 6 in. and 8 in. sizes, sold per box or piece.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultidirectional movement:\u003c\/strong\u003e Accommodates multidirectional building movement at curb-to-wall expansion joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible bellows:\u003c\/strong\u003e Non-reinforced bellows of rubber membrane over closed-cell foam allow both geometric and elastomeric movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal flange mounting:\u003c\/strong\u003e Two metal flanges are adhesively and mechanically combined to the bellows by a patented bifurcation process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatertight intersections:\u003c\/strong\u003e Factory-fabricated intersections are made for maximum flexibility with watertight, clean seam lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple sizes:\u003c\/strong\u003e Available in 4 in., 6 in. and 8 in. sizes for different joint requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory tolerances:\u003c\/strong\u003e Close factory tolerance and quality control assure high yield performance.\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\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBox or piece depending on size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJM Expand-O-Flash CF\/EJ Curb-to-Wall Expansion Joint Cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in., 6 in., 8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlexible rubber membrane with closed-cell foam bellows and metal flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in., 6 in. or 8 in. joint cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMembrane\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlexible rubber, supported by closed-cell foam bellows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlanges\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo metal flanges, bifurcation process\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMovement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMultidirectional; non-reinforced bellows for geometric and elastomeric movement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWeatherproof exterior cover for curb-to-wall expansion joint openings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003ePart of the Johns Manville commercial roofing accessories line for multisystem use; pairs with JM roofing membranes and flashing systems. Custom or factory-fabricated intersections can be ordered; standard field covers only.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What sizes are available?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The CF\/EJ curb-to-wall cover comes in 4 in., 6 in. and 8 in. sizes.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the cover made of?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A flexible rubber membrane over closed-cell foam bellows with two metal flanges, combined by a patented bifurcation process.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it handle movement in multiple directions?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the non-reinforced bellows accommodate multidirectional, geometric and elastomeric movement.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can corners and direction changes be covered?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, labor-saving factory-crafted intersections are available, and covers can be custom designed for special needs.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eSize the cover to the actual joint opening and expected movement, and order factory intersections wherever joints cross or change direction, since stress concentrates at those points. Attach flanges per JM system requirements and keep the bellows centered so movement is not restricted. This is a commercial roofing accessory intended for curb-to-wall joints, not wall-to-deck applications.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eInstall expansion joint covers per the roofing system manufacturer's requirements and confirm the correct cover size before ordering; roof work requires fall protection.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder JM Expand-O-Flash CF\/EJ expansion joint covers in 4 in., 6 in. or 8 in. for watertight curb-to-wall joints.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"6\" \/ BX","offer_id":53522898878831,"sku":"JMECFEJ106","price":1520.0,"currency_code":"USD","in_stock":true},{"title":"4\" \/ BX","offer_id":53522898911599,"sku":"JMECFEJ104","price":1247.5,"currency_code":"USD","in_stock":true},{"title":"8\" \/ PC","offer_id":53522898944367,"sku":"JM90000115","price":176.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/JMECFEJ106_0.jpg?v=1790233097","url":"https:\/\/superarbor.io\/products\/johns-manville-expand-o-flash-cf-ej-curb-to-wall-expansion-joint-cover-4-in-6-in-or-8-in-r","provider":"Super Arbor","version":"1.0","type":"link"}