{"product_id":"johns-manville-expand-o-flash-ej-cant-to-wall-cant-expansion-joint-cover-mill-finish-4-in","title":"Johns Manville Expand-O-Flash EJ Cant-to-Wall\/Cant Expansion Joint Cover, Mill Finish, 4 in., 6 in. and 8 in. Sizes","description":"\u003ch1\u003eJohns Manville Expand-O-Flash EJ Cant-to-Wall\/Cant Expansion Joint Cover, Mill Finish, 4 in., 6 in. and 8 in. Sizes\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is the Johns Manville Expand-O-Flash EJ cant-to-wall\/cant expansion joint cover, a flexible, weather-proof exterior closure for expansion joint openings in commercial roof assemblies. It combines a flexible rubber bellows membrane supported by closed-cell foam with two metal flanges, and is sold as a roll in 4 in., 6 in., or 8 in. widths in mill finish. It pairs with JM low-slope roof systems at cant-to-wall and cant-to-cant conditions.\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 movement as the expansion joint flexes over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible bellows design:\u003c\/strong\u003e Non-reinforced bellows allow both geometric and elastomeric movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory intersections:\u003c\/strong\u003e Factory-fabricated intersections use special fabrication techniques to ensure watertight, clean seam lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-proof closure:\u003c\/strong\u003e Acts as a flexible, weather-proof exterior cover for expansion joint openings in standard and special applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented attachment:\u003c\/strong\u003e The rubber bellows and two metal flanges are adhesively and mechanically combined by a patented bifurcation process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle variety:\u003c\/strong\u003e Designed in a variety of styles to meet different application requirements.\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\u003e1 roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExpand-O-Flash EJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e['Mill']\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e['4 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 bellows with closed-cell foam support and metal flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCant-to-wall and cant-to-cant expansion joints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlexible, weather-proof cover for expansion joint openings in commercial roofing\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 the run of expansion joint at the selected 4 in., 6 in., or 8 in. nominal opening width; roll length is not stated in the sources. Size the joint by measuring opening width and joint run, and plan factory-fabricated intersections where joints cross or change direction.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned for use with Johns Manville low-slope roof systems at cant-to-wall and cant-to-cant expansion joint conditions. Expansion joint openings of the corresponding nominal size are required, and mating flashings and attachment fasteners are specified per the project roof system.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What sizes does this cover come in?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The line includes 4 in., 6 in., and 8 in. cant-to-wall\/cant covers, all in mill finish.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is the cover built?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each cover combines a flexible rubber membrane supported by closed-cell foam to form bellows, with two metal flanges attached by a patented bifurcation process.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What happens where joints intersect or turn corners?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The greatest stress occurs at intersections, crosses, and direction changes, so factory-fabricated intersections are produced with special techniques for watertight, clean seam lines.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it handle movement in several directions?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, it accommodates multidirectional movement through non-reinforced bellows designed for both geometric and elastomeric movement.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the sell unit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each size is sold as a roll; the roll length is not stated in the available product information.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eChoose the cover width to match the nominal expansion joint opening: 4 in., 6 in., or 8 in. Order factory-fabricated intersections for any location where joints cross, intersect, or change direction, since that is where movement stress concentrates. The non-reinforced bellows are what allow the cover to follow both geometry changes and elastomeric movement, so avoid field-modifying the bellows during installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eInstall per the roof system manufacturer's specifications and fall-protection requirements when working at the roof edge or near open expansion joints.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the Johns Manville Expand-O-Flash EJ expansion joint cover in 4 in., 6 in., or 8 in. widths for a flexible, weather-proof joint closure.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"4\"","offer_id":53522824397167,"sku":"JM90000101","price":645.0,"currency_code":"USD","in_stock":true},{"title":"6\"","offer_id":53522824429935,"sku":"JMEEJ0506G","price":740.0,"currency_code":"USD","in_stock":true},{"title":"8\"","offer_id":53522824462703,"sku":"JMEEJ0508G","price":930.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/JM90000101_0.jpg?v=1790231194","url":"https:\/\/superarbor.io\/products\/johns-manville-expand-o-flash-ej-cant-to-wall-cant-expansion-joint-cover-mill-finish-4-in","provider":"Super Arbor","version":"1.0","type":"link"}