{"product_id":"resitrix-skp-partial-bond-epdm-membrane","title":"Resitrix SKP Partial Bond EPDM Membrane","description":"\u003ch3\u003ePartially Self-Adhesive Resitrix EPDM for Overlay \u0026amp; Refurbishment Projects\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eResitrix SKP (Partial Bond)\u003c\/strong\u003e is a glass-reinforced, heat-weldable EPDM waterproofing membrane with a partially self-adhesive backing. Unlike \u003cstrong\u003e\u003ca href=\"\/products\/resitrix-skw-full-bond\"\u003eResitrix SKW Full Bond\u003c\/a\u003e\u003c\/strong\u003e, which is fully coated in modified bitumen adhesive, SKP features a \u003cstrong\u003egrid-pattern self-adhesive backing\u003c\/strong\u003e, allowing the membrane to bond in a controlled, partial manner.\u003c\/p\u003e\n\n\u003cp\u003eThis backing layout lets any trapped moisture or air move and balance out under the sheet. That makes it ideal for overlay jobs and refurb work where the existing deck might still hold a bit of moisture or where there’s slight movement in the substrate.\u003c\/p\u003e\n\n\u003cp\u003eA trade-focused solution for experienced Resitrix installers.\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;\"\u003e\n    What It’s Used For\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\u003eOverlaying existing flat roofs (including compatible bituminous substrates)\u003c\/li\u003e\n      \u003cli\u003eRefurbishment projects with residual moisture risk\u003c\/li\u003e\n      \u003cli\u003eNew insulation boards prone to slight movement or gassing-off\u003c\/li\u003e\n      \u003cli\u003eSubstrates where full surface bonding may increase blister risk\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eNot a mechanically fixed system.\u003c\/strong\u003e\u003cbr\u003e\n    Installed partially self-adhesive onto a fully primed substrate.\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;\"\u003e\n    Why It Matters\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\u003eOn refurb jobs, fully bonded membranes can lock moisture into the deck. If there’s any damp left in the old roof, or the insulation moves slightly, that pressure has nowhere to go - and that’s when blisters can start forming.\u003c\/p\u003e\n    \u003cp\u003eResitrix SKP helps manage that risk.\u003c\/p\u003e\n    \u003cp\u003eBecause the adhesive is laid in a grid pattern, the sheet isn’t bonded solid across the whole deck. That allows any trapped air or moisture to balance out underneath, while still holding the membrane firmly in place.\u003c\/p\u003e\n    \u003cp\u003eYou still get:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eFully heat-welded seams\u003c\/li\u003e\n      \u003cli\u003eStrong adhesion to the primed deck\u003c\/li\u003e\n      \u003cli\u003eCompatibility with existing bitumen roofs\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eIt gives you the security of Resitrix, but with a bit more forgiveness on tricky refurbishment substrates.\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;\"\u003e\n    Installation Overview\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\u003eSubstrate must be clean, dry and suitably prepared.\u003c\/li\u003e\n      \u003cli\u003ePrime the deck with \u003cstrong\u003e\u003ca href=\"\/products\/fg35-primer-for-resitrix%C2%AE-alutrix%C2%AE\"\u003eFG35 surface primer\u003c\/a\u003e\u003c\/strong\u003e and allow to dry fully.\u003c\/li\u003e\n      \u003cli\u003eAlign rolls with minimum 50mm laps (80mm over EPS) as per system guidance.\u003c\/li\u003e\n      \u003cli\u003eRemove release film and lay into position.\u003c\/li\u003e\n      \u003cli\u003eHeat weld all seams to form a continuous waterproof layer.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eAlthough the adhesive backing is applied in a grid format, installation guidance permits partial self-adhesive installation onto full-surface primer. In practice, full deck priming ensures consistent adhesion and efficient installation.\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;\"\u003e\n    Technical Specification\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\u003eType: Partially self-adhesive EPDM waterproofing membrane\u003cbr\u003e\n    Core: EPDM\u003cbr\u003e\n    Reinforcement: Glass scrim reinforced\u003cbr\u003e\n    Underside: Grid-pattern polymer modified bitumen adhesive with release film\u003cbr\u003e\n    Thickness: 2.5mm ±10%\u003cbr\u003e\n    Roll Width: 1,000mm\u003cbr\u003e\n    Roll Length: 10m\u003cbr\u003e\n    Weight: 2.75kg\/m² or 27.5kg per full roll\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;\"\u003e\n    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\u003eOn refurb jobs, SKP gives you more breathing room. If you’re overlaying old felt or new insulation that hasn’t fully settled, partial bond reduces the risk of trapping vapour while still giving you welded seams and a solid system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"The Flat Roofing Shop","offers":[{"title":"Default Title","offer_id":56585052029259,"sku":"RT-SK-P-1000","price":358.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/4054\/9451\/files\/resitrix-skp-partial-bond-epdm.jpg?v=1774700724","url":"https:\/\/theflatroofingshop.co.uk\/products\/resitrix-skp-partial-bond-epdm-membrane","provider":"The Flat Roofing Shop","version":"1.0","type":"link"}