{"product_id":"classicbond-epdm-68mm-internal-drain-kit-for-flat-roofs","title":"ClassicBond EPDM 68mm Internal Drain Kit for Flat Roofs","description":"\u003ch3\u003eAnti-Back Up Internal Roof Drain for EPDM Rubber Roofing\u003c\/h3\u003e\n\n\u003cp\u003eThe ClassicBond 68mm Internal Drain Kit is a complete internal drainage solution for EPDM rubber roofing, designed to safely connect drains on flat roofs to standard 68mm UK rainwater pipes while preventing water backing up into the roof system.\u003c\/p\u003e\n\n\u003cp\u003eThis kit uses the ClassicBond Anti-Back Up Roof Drain, combined with uncured EPDM flashing tape and primer, to create a secure, watertight drain detail at one of the most critical points on any flat roof.\u003c\/p\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    Why Internal Drains Are a Critical Detail\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eInternal drains are one of the highest-risk areas on a flat roof. If water backs up around the outlet, it can:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eTrack back under the membrane\u003c\/li\u003e\n      \u003cli\u003eSaturate insulation\u003c\/li\u003e\n      \u003cli\u003eCause leaks inside the building\u003c\/li\u003e\n      \u003cli\u003eLead to long-term roof failure\u003c\/li\u003e\n      \u003cli\u003eThis is why anti-back-up protection matters.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eThe ClassicBond internal drain is designed specifically to stop water backing up between the outlet and the pipe, protecting the roof build-up below.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c!-- MOVED UP --\u003e\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    Designed for 68mm UK Rainwater Pipes\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eThis internal drain kit is intended for:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eFlat roofs with internal drainage\u003c\/li\u003e\n      \u003cli\u003eRoofs connecting to standard 68mm domestic downpipes\u003c\/li\u003e\n      \u003cli\u003eDomestic and commercial EPDM roofs\u003c\/li\u003e\n      \u003cli\u003eWarm and cold roof constructions\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eIt is suitable for use with \u003cstrong\u003e\u003ca href=\"\/collections\/classicbond-epdm\"\u003eClassicBond\u003c\/a\u003e, \u003ca href=\"\/collections\/classicbond-pro\"\u003eClassicBond Pro\u003c\/a\u003e and other EPDM membranes\u003c\/strong\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    What Makes This Drain “Anti-Back Up”\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eThe ClassicBond Anti-Back Up Drain features:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eA smooth 285mm × 285mm flange for excellent EPDM bonding\u003c\/li\u003e\n      \u003cli\u003eA 185mm outlet stem that pushes deep into the pipe\u003c\/li\u003e\n      \u003cli\u003eMultiple compression ribs on the stem that form a tight seal inside the pipe\u003c\/li\u003e\n      \u003cli\u003eA pressure-fit design that prevents water or vapour travelling back into the roof\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eOnce installed, this design eliminates backing up of water, even during heavy rainfall.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    Why Buy the Complete Kit?\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eThis is not just a drain outlet - it’s a complete kit for a compliant, secure, drain installation.\u003c\/p\u003e\n    \u003cp\u003eBuying the kit ensures you have:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eThe correct drain\u003c\/li\u003e\n      \u003cli\u003eThe correct uncured flashing tape\u003c\/li\u003e\n      \u003cli\u003eThe correct primer\u003c\/li\u003e\n      \u003cli\u003eThe correct leaf grate\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eEverything is designed to work together, removing guesswork and reducing installation errors.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    What’s Included in the Kit?\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eEach ClassicBond 68mm Internal Drain Kit contains:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\u003cstrong\u003e1 × ClassicBond Anti-Back Up Internal Drain (68mm)\u003c\/strong\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003cstrong\u003e1 × 300mm length of 9″ Uncured EPDM Flashing Tape\u003c\/strong\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003cstrong\u003e1 × 250ml ClassicBond EPDM Primer\u003c\/strong\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003cstrong\u003e1 × Leaf guard\u003c\/strong\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eThis is everything required to form a watertight internal drain detail on an EPDM roof.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    How the Drain Is Installed\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003col\u003e\n      \u003cli\u003eCut the drain flange back to leave a 50–75mm bonding area\u003c\/li\u003e\n      \u003cli\u003eMechanically fix drain flange into the roof deck\u003c\/li\u003e\n      \u003cli\u003eInstall EPDM membrane over the roof (do not apply deck adhesive to the drain flange)\u003c\/li\u003e\n      \u003cli\u003eCut out the membrane using the flange as a guide\u003c\/li\u003e\n      \u003cli\u003ePrime the flange and surrounding membrane (50mm overlap onto EPDM)\u003c\/li\u003e\n      \u003cli\u003eInstall the uncured EPDM flashing with a minimum 50mm overlap\u003c\/li\u003e\n      \u003cli\u003eCut the centre hole and press flashing tape down inside the outlet\u003c\/li\u003e\n      \u003cli\u003eFit the leaf guard\u003c\/li\u003e\n      \u003cli\u003eThis method ensures a secure seal both on the surface and inside the pipe\u003c\/li\u003e\n    \u003c\/ol\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    Product Details\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e ClassicBond 68mm Internal Drain Kit\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDrain type:\u003c\/strong\u003e Anti-Back Up Internal Roof Drain\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic rubber (IGOM CE)\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlange size:\u003c\/strong\u003e 285mm × 285mm\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eOutlet length:\u003c\/strong\u003e 185mm\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eOutlet internal size:\u003c\/strong\u003e Approx. 62mm\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDownpipe size:\u003c\/strong\u003e 68mm (UK standard)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative; list-style:none;\"\u003e\n    A Roofer’s Perspective\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eInternal drains are where flat roofs often fail - not because of the membrane, but because of poor outlet detailing.\u003c\/p\u003e\n    \u003cp\u003eUsing an anti-back-up drain with uncured EPDM flashing tape resolves that problem. The outlet seals inside the pipe, the flashing tape seals to the membrane, and water has nowhere to go except down the drain.\u003c\/p\u003e\n    \u003cp\u003eIt’s the most reliable way to detail an internal outlet on an EPDM roof.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"The Flat Roofing Shop","offers":[{"title":"Default Title","offer_id":56484078125387,"sku":"CB-Drain-68-Drain-Kit","price":39.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/4054\/9451\/files\/epdm-internal-drain-fitted.jpg?v=1773495883","url":"https:\/\/theflatroofingshop.co.uk\/products\/classicbond-epdm-68mm-internal-drain-kit-for-flat-roofs","provider":"The Flat Roofing Shop","version":"1.0","type":"link"}