{"product_id":"alpha-systems-8-5-x-400-superflex-almond-2023037103","title":"Alpha Systems - 8.5' X 400' Superflex Almond","description":"\u003cp\u003eThe Alpha SuperFlex RV roof membrane 8.5 foot wide by 400-foot roll is the commercial and dealer format of Alpha's most popular roof membrane line. Whether you call it by part number SFX850AL400 or simply the Alpha SuperFlex RV roof membrane 8.5 foot commercial roll, this is the bulk-stocking format that dealers and RV parks buy when they replace multiple roofs per season. At 3,400 square feet per roll, it is sized for RV dealerships, repair shops, and RV parks that replace multiple roofs per season and want to buy once rather than repeatedly sourcing individual project rolls. The same membrane formula — flexible, UV-resistant, and puncture-resistant EPDM-blend construction — applies to every roll in the SuperFlex line regardless of color or length.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Makes SuperFlex Different from Standard RV Roof Membrane\u003c\/h2\u003e\n\u003cp\u003eStandard EPDM membranes are rigid enough to crack at seams when an RV flexes over highway bumps and terrain changes. Alpha SuperFlex is engineered with a higher flexibility and stretch rating, which lets the membrane move with the roof structure without tearing at edges, corners, or around vents. It also accommodates the complex curved contours common on modern fifth wheels and Class A motorhomes that standard flat-cut membrane cannot conform to cleanly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh stretch and flexibility:\u003c\/strong\u003e Moves with the coach through normal highway flex without stress-cracking at corners or vent cutouts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePuncture-resistant surface:\u003c\/strong\u003e Resists hail, debris, and foot traffic during installation and service\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUV-stable construction:\u003c\/strong\u003e Rated for full outdoor exposure; does not degrade or chalk under prolonged sun exposure at the rate standard rubber membranes do\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConsistent adhesion:\u003c\/strong\u003e Compatible with standard RV roof adhesives and lap sealants already in use at most service shops\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 8.5 feet — covers the standard RV roof width for most travel trailers and fifth wheels in one uncut pass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll length:\u003c\/strong\u003e 400 feet — approximately 12 to 16 complete roof reskins per roll at typical RV sizes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Almond — factory cross-reference SFX850AL400 \/ SKU 2023037103\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow Much Coverage to Expect\u003c\/h2\u003e\n\u003cp\u003eA full 400-foot roll covers 3,400 square feet total. Most travel trailer and fifth wheel roofs run between 200 and 350 square feet depending on length. Plan for 10 to 15 percent extra for overlap, edge wraps, and cutouts around vents and skylights. A typical 32-foot fifth wheel roof (roughly 250 square feet net) uses approximately 285 square feet of membrane with proper overlap. One 400-foot roll is enough for approximately 10 to 12 complete roofs at that size.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ch2\u003eAlpha SuperFlex 8.5-Foot Width — Available Roll Lengths\u003c\/h2\u003e\n  \u003cp\u003eAll lengths use the same membrane formula. Choose the roll length that matches your shop's usage volume.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background:#1d4ed8; color:white;\"\u003e\n        \u003cth style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eRoll Length\u003c\/th\u003e\n        \u003cth style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eCoverage (sq ft)\u003c\/th\u003e\n        \u003cth style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eBest For\u003c\/th\u003e\n        \u003cth style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eView Details\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e8.5' x 20'\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e170 sq ft\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eSingle small trailer or section repair\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/en-ca\/products\/alpha-systems-8-5-x-20-superflex-almond-170-0-sqft-roll-2020\"\u003eView 20'\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f9fafb;\"\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e8.5' x 25'\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e212 sq ft\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eSingle mid-size trailer roof\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/en-ca\/products\/alpha-systems-8-5-x-25-superflex-almond-212-5-sqft-roll-2020\"\u003eView 25'\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e8.5' x 30'\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e255 sq ft\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eSingle standard fifth wheel or travel trailer\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/en-ca\/products\/alpha-systems-8-5-x-30-superflex-almond-255-0-sqft-roll-2020\"\u003eView 30'\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f9fafb;\"\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e8.5' x 35'\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e298 sq ft\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eLarger fifth wheel; one roll per coach\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/en-ca\/products\/alpha-systems-8-5-x-35-superflex-almond-297-50-sqft-roll-202\"\u003eView 35'\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e8.5' x 40'\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e340 sq ft\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003eLarge travel trailer or motorhome; one roll per coach\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/en-ca\/products\/alpha-systems-8-5-x-40-superflex-almond-340-0-sqft-roll-2020\"\u003eView 40'\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-left:3px solid #1d4ed8; background:#eff6ff;\"\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003e8.5' x 400' (this product)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003e3,400 sq ft\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eMulti-unit shops, dealerships, RV parks — 10 to 12 roofs per roll\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:10px; border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCurrent Product\u003c\/strong\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp\u003e\u003cstrong\u003eAlso available in Beige, Gray, and White\u003c\/strong\u003e at the 400-foot roll size. Color does not affect performance — choose based on your existing roof color or manufacturer standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003e\u003cstrong\u003eWhat makes the Alpha SuperFlex RV roof membrane 8.5 foot format different from standard EPDM membrane?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eStandard EPDM is less flexible and can stress-crack at corners, seams, and around roof penetrations as the coach flexes. SuperFlex uses a modified formulation with higher flexibility and stretch ratings, which helps the membrane move with the coach structure rather than fighting it. The result is fewer edge failures and longer seam life on coaches that see regular road use.\u003c\/dd\u003e\n  \u003cdt\u003e\u003cstrong\u003eDoes the 400-foot roll ship standard freight or do I need to arrange LTL?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eThe 400-foot commercial roll is a large-format freight item. Contact us before placing your order so we can confirm current freight options and coordinate delivery. Standard parcel carriers (UPS, FedEx) cannot handle this roll size.\u003c\/dd\u003e\n  \u003cdt\u003e\u003cstrong\u003eCan I use this membrane with existing Alpha Systems adhesives and lap sealants?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eYes. SuperFlex is designed to work with Alpha's standard roof adhesives and lap sealants. If you are using another brand's adhesive, confirm compatibility with the adhesive manufacturer before applying, as EPDM-blend membranes have specific primer and adhesive requirements.\u003c\/dd\u003e\n  \u003cdt\u003e\u003cstrong\u003eWhat colors are available at the 400-foot roll size?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eAlmond (this product), Beige, Gray, and White. All four colors are available in the 400-foot commercial roll format. Color selection is based on aesthetics and matching your existing roof or manufacturer specification — it does not affect membrane performance.\u003c\/dd\u003e\n  \u003cdt\u003e\u003cstrong\u003eIs a 9.5-foot wide version available for wider coach roofs?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eYes, Alpha SuperFlex is also available in 9.5-foot widths for coaches that are too wide for an 8.5-foot single-pass installation. Contact us to check availability and pricing on 9.5-foot width options.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Alpha SuperFlex 8.5' x 400' EPDM RV Roof Membrane - Almond\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Alpha Systems\"\n  },\n  \"description\": \"Alpha Systems SuperFlex 8.5-foot x 400-foot EPDM RV roof membrane roll in almond. 3,400 sq ft per roll. For dealerships, repair shops, and RV parks. 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