{"title":"Flat Roof Repair Kits","description":"\u003cp\u003eRepair and patch kits for existing flat roofs — GRP crack-bridging paint and resin\/matting laminate repairs for damaged or leaking fibreglass roofs. For new-build or full re-lay roofing systems, see our GRP and EPDM roof kits instead.\u003c\/p\u003e","products":[{"product_id":"grp-roof-repair-kit-resin-matting-topcoat-8-3m2","title":"GRP Roof Repair Kit – Resin, Matting \u0026 Topcoat for Existing Fibreglass Roofs, 8.3m²","description":"\u003cp\u003eA cracked or damaged patch on an otherwise sound GRP roof doesn't need a whole new laminate — it needs the same resin-and-matting system that built the roof in the first place, in a size that makes sense for a repair rather than a full re-lay. This kit gives you a genuine GRP lamination repair: fibreglass matting, resin and topcoat to properly patch a damaged area, not just a surface paint that hides the problem without reinforcing it.\u003c\/p\u003e\n\n\u003cp\u003eUnlike a crack-bridging paint, this kit rebuilds the laminate itself — cut a patch of matting to size, wet it out with resin over the damaged area, and finish with a topcoat colour-matched to grey GRP. It's the right tool for splits, punctures, delaminated patches and areas where the glass fibre reinforcement itself has failed, not just surface crazing.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine resin-and-matting repair — rebuilds the laminate, doesn't just coat over the problem\u003c\/li\u003e\n\u003cli\u003e450g fibreglass matting, resin and grey topcoat all included\u003c\/li\u003e\n\u003cli\u003eCovers 8.3m² of topcoat (4.4m² of matting reinforcement)\u003c\/li\u003e\n\u003cli\u003eSame materials and technique as a new-build GRP roof, sized for a repair job\u003c\/li\u003e\n\u003cli\u003eFull tool set included — brush, roller, mixing cup and stirrer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere it's used\u003c\/h3\u003e\n\u003cp\u003ePatching splits, punctures, cracked corners and delaminated sections on an existing GRP fibreglass roof. If the damage is a fine surface crack rather than a structural split, our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/grp-crack-repair-kit-instant-repair\"\u003eGRP Crack Repair Kit\u003c\/a\u003e is a faster paint-only fix. If you're covering an entire new deck rather than repairing an existing roof, see our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/complete-grp-fibreglass-roofing-kit-with-tools-450g\"\u003e450g GRP Fibreglass Roofing Kit\u003c\/a\u003e range instead.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003cth\u003eMatting\u003c\/th\u003e\n\u003cth\u003eTopcoat\u003c\/th\u003e\n\u003cth\u003eColour\u003c\/th\u003e\n\u003cth\u003eTools included\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUp to 8.3m² topcoat \/ 4.4m² matting\u003c\/td\u003e\n\u003ctd\u003e450g CSM\u003c\/td\u003e\n\u003ctd\u003eGrey GRP topcoat\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOrdering \u0026amp; installation guidance\u003c\/h3\u003e\n\u003cp\u003eClean and dry the damaged area, cut back any loose or delaminated laminate, and cut the matting to overlap the sound roof by at least 75mm on all sides. Wet the matting out with resin, roll out air bubbles, and finish with the topcoat once cured. For larger areas or a full re-lay, our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/600g-fire-rated-grp-roofing-kit-materials-only-broof-t4\"\u003e600g GRP kit (materials only)\u003c\/a\u003e and \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/300g-fire-rated-grp-roofing-kit-with-tools-broof-t4\"\u003e300g GRP kit\u003c\/a\u003e cover full new-lay jobs at various scales.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the same as a crack-bridging paint?\u003c\/strong\u003e\u003cbr\u003eNo — this kit uses real fibreglass matting and resin to rebuild the laminate structurally, rather than just painting over a surface crack. For fine surface crazing only, our paint-only crack repair kit is a faster option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the repair be visible?\u003c\/strong\u003e\u003cbr\u003eThe topcoat is colour-matched to standard grey GRP, but a patch repair will typically show as a slightly different texture or sheen compared to the surrounding roof — it restores waterproofing, not invisible cosmetic finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature do I need for application?\u003c\/strong\u003e\u003cbr\u003eApply in dry conditions above roughly 5°C for proper cure, following the guidance included with the kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much area does one kit cover?\u003c\/strong\u003e\u003cbr\u003eUp to 8.3m² of topcoat and 4.4m² of matting reinforcement — order multiple kits for larger repair areas.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it delivered?\u003c\/strong\u003e\u003cbr\u003eDispatched from UK stock — check the product page at checkout for the current delivery estimate to your postcode.\u003c\/p\u003e","brand":"Rubber Roof UK","offers":[{"title":"Default","offer_id":46000803053759,"sku":"RRUK-GRPREPAIR-83","price":289.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/1804\/9727\/files\/LsGH8KzPCE8YVt4v0YFQKtxE9t5GpyToavixelo1sgwNqp_D-7yLhinQj0y1Knzz1GEn47RwjeR7wq-C-xNQzQirKpIzcUIZAjKUZiqPAfnpl25IzsOnUFfbr7GTnWJp2Xm2h6caL4P0yikybjSRyb1zWDoFO0zoxVVunA0Jbsg.jpg?v=1786440428"},{"product_id":"grp-crack-repair-kit-instant-repair","title":"GRP Crack Repair Kit – Instant Crack-Bridging Roof Repair Paint, 10m² \u0026 20m²","description":"\u003cp\u003eFine surface cracking on a GRP, felt or metal roof doesn't always need a full laminate repair — sometimes what stops the leak is a fibre-reinforced coating that bridges the crack and seals it in one application, straight from the tin. This crack repair kit is built around exactly that: a thick, fibre-reinforced roof repair paint that bridges cracks up to 10mm wide, applied directly by brush or roller with no mixing or catalysing.\u003c\/p\u003e\n\n\u003cp\u003eIt's the fast option when the damage is surface crazing or hairline cracking rather than a structural split — no cutting matting to size, no catalysing resin, just clean the surface and coat. For splits, punctures or delaminated areas where the glass fibre reinforcement itself has failed, our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/grp-roof-repair-kit-resin-matting-topcoat-8-3m2\"\u003eGRP Resin \u0026amp; Matting Repair Kit\u003c\/a\u003e is the right tool instead.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBridges cracks up to 10mm wide in one coat, no mixing or catalysing\u003c\/li\u003e\n\u003cli\u003eApplies directly from the tin by brush or roller\u003c\/li\u003e\n\u003cli\u003eFibre-reinforced formulation for genuine crack-bridging strength, not just a thin paint\u003c\/li\u003e\n\u003cli\u003eTwo sizes covering 10m² or 20m²\u003c\/li\u003e\n\u003cli\u003eKit includes brush, roller and disposable gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere it's used\u003c\/h3\u003e\n\u003cp\u003eSurface crazing and hairline cracks on GRP, felt and metal flat roofs — a fast maintenance fix rather than a structural repair. For splits, punctures or areas needing a rebuilt laminate, use our resin-and-matting repair kit instead; for a full new-lay roof, see our GRP roofing kit range.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003cth\u003eApplication rate\u003c\/th\u003e\n\u003cth\u003eColour\u003c\/th\u003e\n\u003cth\u003eTools included\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10m²\u003c\/td\u003e\n\u003ctd\u003eUp to 10m²\u003c\/td\u003e\n\u003ctd\u003e1-2kg\/m² depending on surface\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20m²\u003c\/td\u003e\n\u003ctd\u003eUp to 20m²\u003c\/td\u003e\n\u003ctd\u003e1-2kg\/m² depending on surface\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOrdering \u0026amp; installation guidance\u003c\/h3\u003e\n\u003cp\u003eClean and dry the roof surface before application — loose debris, moss or standing water will affect adhesion. Apply by brush or roller directly over the crack and surrounding area, working slightly beyond the damage to key the coating into sound material. For a genuine structural laminate repair, pair with our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/grp-roof-repair-kit-resin-matting-topcoat-8-3m2\"\u003eGRP Resin \u0026amp; Matting Repair Kit\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fix a split or puncture?\u003c\/strong\u003e\u003cbr\u003eIt's designed for fine surface cracking and crazing, bridging gaps up to 10mm. For a genuine split or puncture where the laminate itself has failed, use our resin-and-matting repair kit for a structural fix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need mixing or a catalyst?\u003c\/strong\u003e\u003cbr\u003eNo — it applies directly from the tin by brush or roller, no mixing or catalysing required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat surfaces does it work on?\u003c\/strong\u003e\u003cbr\u003eGRP, felt and metal flat roof surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much do I need?\u003c\/strong\u003e\u003cbr\u003eCoverage is roughly 1-2kg per m² depending on surface condition — choose the 10m² or 20m² size to match your repair area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it delivered?\u003c\/strong\u003e\u003cbr\u003eDispatched from UK stock — check the product page at checkout for the current delivery estimate to your postcode.\u003c\/p\u003e","brand":"Rubber Roof UK","offers":[{"title":"10m²","offer_id":46000807968959,"sku":"RRUK-CRACKREPAIR-10","price":174.99,"currency_code":"GBP","in_stock":true},{"title":"20m²","offer_id":46000808001727,"sku":"RRUK-CRACKREPAIR-20","price":309.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/1804\/9727\/files\/Uy44SO2sY2LTNwyjMBYjZR68Zu2gLxRumA9_QIxXzYqB01qO-Eq6o2myBhc4P_6ey4wgfGF8mGruiF5fbLpmdDOC6f15gFgHjo8ImOozvOteunq-_ZEqdnt_3m1C62150yk3aVUqVBTSLyNuNtpOxeH9A0-LPC32b40O3CP2x7s.jpg?v=1786440616"},{"product_id":"grp-roof-surface-restoration-coat-flexible-resin","title":"GRP Roof Surface Restoration Coat – Flexible All-In-One Resin Resurfacing System, Up to 30m²","description":"\u003cp\u003eA GRP roof that's lost its surface gloss, gone chalky, or developed widespread fine crazing across most of its area doesn't necessarily need patch-repairing crack by crack — sometimes the more sensible fix is to resurface the whole roof in one go. This is a flexible, all-in-one resin system that combines base coat and topcoat in a single application, giving an existing roof a genuine new wearing surface rather than a cosmetic coat of paint over failing GRP.\u003c\/p\u003e\n\n\u003cp\u003eUnlike our targeted patch and crack repair kits, this is a whole-roof resurfacing product — it covers up to 30m² per kit and is designed to recoat an entire ageing GRP roof surface in one pass, restoring UV and weather protection across the whole area rather than just the damaged sections.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll-in-one flexible resin — base coat and topcoat combined in a single application\u003c\/li\u003e\n\u003cli\u003eCovers up to 30m² per kit — sized for whole-roof resurfacing, not spot repair\u003c\/li\u003e\n\u003cli\u003eRestores UV and weather protection across an entire ageing GRP surface\u003c\/li\u003e\n\u003cli\u003eKit includes catalyst, roller and application tools\u003c\/li\u003e\n\u003cli\u003eGrey finish, colour-matched to standard GRP roofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere it's used\u003c\/h3\u003e\n\u003cp\u003eWhole-roof resurfacing on an existing GRP roof that's showing widespread surface wear, chalking or fine crazing across most of its area, rather than localised damage. For a single crack or split, our \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/grp-crack-repair-kit-instant-repair\"\u003eGRP Crack Repair Kit\u003c\/a\u003e or \u003ca href=\"https:\/\/rubberroofuk.uk\/products\/grp-roof-repair-kit-resin-matting-topcoat-8-3m2\"\u003eGRP Resin \u0026amp; Matting Repair Kit\u003c\/a\u003e are the right-sized tools for a targeted patch instead.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eColour\u003c\/th\u003e\n\u003cth\u003eTools included\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUp to 30m²\u003c\/td\u003e\n\u003ctd\u003eFlexible all-in-one resin (base + topcoat combined)\u003c\/td\u003e\n\u003ctd\u003eSingle application by roller\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOrdering \u0026amp; installation guidance\u003c\/h3\u003e\n\u003cp\u003eClean the roof thoroughly and ensure it's dry before application — remove any loose or flaking material first. The resin is catalysed before use and applied by roller in a single coat across the whole roof area. For roofs with localised structural damage as well as general surface wear, patch-repair those areas first with our resin-and-matting kit before resurfacing the whole roof.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the same as a patch repair kit?\u003c\/strong\u003e\u003cbr\u003eNo — this is a whole-roof resurfacing product covering up to 30m² in one application, not a targeted patch for a single crack or split.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need mixing?\u003c\/strong\u003e\u003cbr\u003eYes — the resin is catalysed before application, with full instructions and the correct catalyst included in the kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this on a roof with active leaks?\u003c\/strong\u003e\u003cbr\u003eFix any structural damage (splits, punctures, delamination) with a patch repair first — this restoration coat resurfaces sound GRP, it doesn't bridge structural gaps the way a dedicated repair kit does.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat colour does it finish in?\u003c\/strong\u003e\u003cbr\u003eGrey, colour-matched to standard GRP roofing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it delivered?\u003c\/strong\u003e\u003cbr\u003eDispatched from UK stock — check the product page at checkout for the current delivery estimate to your postcode.\u003c\/p\u003e","brand":"Rubber Roof UK","offers":[{"title":"Default","offer_id":46000826155199,"sku":"RRUK-GRPRESTORE-30","price":759.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/1804\/9727\/files\/6t0xKL5UB4aV1H-dhhs_jbxLCI2yCFJv3aTpvnLNoEf_WiPD8zoOb2YJ2oJ8l8SluLAQ3fg4XdLWjOw0aiDstOnVCJiswpe_AqeboK9UZFA5DBCd3gbSOLMJIOKsTGIfk7HCtpU_DiQZI0Vi0lBqUHtOoVd3Ebg1T9_W3gbwg74.jpg?v=1786441116"}],"url":"https:\/\/rubberroofuk.uk\/collections\/flat-roof-repair-kits.oembed","provider":"Rubber Roof UK","version":"1.0","type":"link"}