# GRP Roofing > GRP Roofing is a UK supplier of liquid-applied and fibreglass flat roofing systems, with over 30 years of expertise. The company supplies three roofing systems (Fibrelast, Fibrecoat and Overcoat) as ready-made kits and individual materials, plus trims, tools, reinforcements, green roofing and accessories. Same-day despatch on orders before noon, free delivery over £800, expert technical support, and Basecare guarantees of up to 25 years. Roofing kits cover up to 50 m²; custom kits are available for larger roofs via the technical team. ## Roofing Systems - [Fibreglass roofing systems](https://www.grproofing.com/systems): Browse our range of liquid-applied GRP fibreglass roofing systems that cover a comprehensive range of roofing surfaces and budgets - [Fibrelast](https://www.grproofing.com/fibrelast): Fibrelast is a flexible, fire-retardant GRP fibreglass roofing system for all types of flat roofs, balconies, dormers and extensions - [Fibrecoat](https://www.grproofing.com/fibrecoat): Fibrecoat is a fibreglass roofing system for flat roofs, offering flexibility, fire retardance, UV resistance, and up to 25 years of coverage - [Overcoat](https://www.grproofing.com/overcoat): Overcoat is a high-performance flexible roofing system that provides instant waterproof protection for roofs, gutters, joints, seams and more! - [Sharkseal](https://www.grproofing.com/sharkseal): Sharkseal bonds and seals virtually any roof surface and is ideal for roof repairs, sealing joints and bonding trims - [Compare](https://www.grproofing.com/compare): Unsure what liquid roofing system you want to use? Compare our range of different systems and find the right one for you - [Materials](https://www.grproofing.com/materials): We are the UK's leading manufacturer and supplier of GRP Fibreglass roofing materials. We sell roofing resins and topcoats, glass fibre and GRP trims - [Trims](https://www.grproofing.com/trims): We manufacture and supply the complete range of GRP fibreglass roofing trims and corners. available to buy online with same day despatch and free… - [Tools](https://www.grproofing.com/tools): Browse and purchase GRP Roofing tools and accessories, we supply everything from buckets and brushes to rollers and personal protection equipment - [Shop Green Roofing](https://www.grproofing.com/green-roofing): Allbase supplies a wide range of green roofing modules and acessories to compliment its range of GRP and liquid applied fibreglass roofing systems - [Green Roofing](https://www.grproofing.com/groof): Our Greencoat roofing modules are a quick, low cost method of laying a green roof to your existing GRP or fibreglass flat roofing surface ## Kits & Store - [Liquid Applied Roofing Kits](https://www.grproofing.com/kits): Our Liquid Roofing kits and tool packs contain everything you need for your DIY or professional flat roofing project - [GRP Roofing Kit Builder](https://www.grproofing.com/kits/builder): Use our timesaving GRP roofing kit builder to order everything you need for your next GRP Fibreglass roofing project - free delivery on all kits - [Store](https://www.grproofing.com/store): High-quality fibreglass roofing systems, kits, trims, tools, and accessories. Free tech support and delivery on orders over £800 - [Shop Fibrelast](https://www.grproofing.com/store/fibrelast): Shop the Fibrelast GRP Roofing system, accessories and offers. Compare systems and get expert shopping help - [Shop Fibrecoat](https://www.grproofing.com/store/fibrecoat): Shop Fibrecoat, a versatile liquid fibreglass roofing system suitable for any surface. Catalyst-free curing, exceptional flexibility, Styrene free.… - [Shop Fibretrims](https://www.grproofing.com/store/fibretrim): Fibretrims are a complete range of GRP fibreglass roofing trims and corners. manufactured in the UK with same-day despatch and free delivery - [Shop Accessories](https://www.grproofing.com/store/accessories): Shop tools and accessories for Fibrelast, Fibrecoat and Overcoat liquid applied roofing systems, with same-day despatch and free delivery - [Shop Fibreglass Reinforcements](https://www.grproofing.com/store/reinforcements): Shop fibreglass reinforcement for the Fibrelast and Fibrecoat liquid applied roofing systems, with same-day despatch and free delivery - [Shop Green Roofing](https://www.grproofing.com/store/green-roofing): Buy easy to install green roofing systems compatible with fibreglass roofing systems. Same day despatch and free delivery available ## Installation & Guides - [Installation](https://www.grproofing.com/installation): Our nationwide network of approved contractors has the knowledge and expertise to install your new fibreglass roof to exacting standards - [Project Timeline](https://www.grproofing.com/installation/timeline): In accordance with our customer charter and internal standards, we have outlined our project timeline for a typical GRP roofing installation - [Guide](https://www.grproofing.com/guide): This easy to follow guide covers everything from laying a new deck, fixing the trims, laying the basecoat and applying the finish - [Calculating the size](https://www.grproofing.com/guide/size): Because the materials are sold in square metres In this guide we show you how to calculate the total area of your flat roof into square metres so you… - [Health & Safety](https://www.grproofing.com/guide/health-safety): This section covers the health and safety measures you need to take before using any of the GRP fibreglass roofing materials - [Weather](https://www.grproofing.com/guide/weather): This section goes through the information you need to know before you get started using the GRP roofing materials and what to do if it rains - [Decking](https://www.grproofing.com/guide/decking): In this section of the GRP roofing guide, we take a look at the decking needed for correct GRP roofing installation, and how to lay and apply - [Installing Trims](https://www.grproofing.com/guide/installing-trims): In this section we take a look at the different pre-formed roofing trims and corners you can use and how to attach them to your flat roof - [Fibreglass Matting Guide](https://www.grproofing.com/guide/fibreglass): In this section of the GRP Roofing guide, we look at fibreglass matting, what is it and what is the best weight to use for your project - [Catalyst](https://www.grproofing.com/guide/catalyst): This section shows you how much catalyst to use and how to mix into the GRP fibreglass roofing resins and topcoats - [Resin Application](https://www.grproofing.com/guide/resin-application): This section shows you how to use the base resin with the catalyst and fibreglass matting to create the main part of your GRP fibreglass roof - [Topcoat Application](https://www.grproofing.com/guide/topcoat-application): This section shows you how to mix and apply the Fibrelast finishing topcoat system to create the final layer and finish off your new GRP roof - [Checklist](https://www.grproofing.com/fibrelast/checklist): Our checklist makes sure you’ve got everything ready for your GRP fibreglass roofing project and nothing is left out. Download for free - [Buyers Guide](https://www.grproofing.com/buyers-guide): An impartial guide to GRP fibreglass roofing, how to spot high quality materials and tips for finding the best contractor for your roof ## Support - [Support](https://www.grproofing.com/support): GRP roofing support is here to help. Learn more about popular topics and find resources that will help you with your fibreglass roofing project - [Questions & Answers](https://www.grproofing.com/support/questions): QuestionsFind answers, ask questions, and connect with our technical services team and approved contractors from across the UK - [Glossary](https://www.grproofing.com/support/glossary): Our glossary goes through all the specialist terms, phrases and products names that are used in and around the GRP fibreglass roofing industry - [Troubleshooting](https://www.grproofing.com/support/troubleshooting): Troubleshoot any problems you may be experiencing with Fibrelast or GRP fibreglass roofing in general - [Contact](https://www.grproofing.com/contact): Talk to us about your new GRP roofing project, we'd love to help and can proved all the materials, contractors and free technical support you will… - [About](https://www.grproofing.com/about): GRP Roofing is a Fibreglass Roofing Materials Supplier. We provide high-quality materials along with expert technical services and support - [Trade](https://www.grproofing.com/trade): Become an Allbase trade installer and access advanced liquid roofing systems with trade pricing, training and 25-year guarantees - [Deliveries](https://www.grproofing.com/deliveries): Delivery information for your GRP Roofing orders including our shipping tariffs along with some basic guidelines to follow - [Price match](https://www.grproofing.com/price-match): The GRP Fibreglass Roofing price match scheme aims to beat or match any GRP roofing prices you have been quoted by our competition ## Products ### Systems & Kits - [Dual 450gm GRP Roofing Kit](https://www.grproofing.com/product/dual-450gm-grp-roofing-kit): Dual (2 layers) of 450gm GRP fibreglass roofing kits that contain all the resin, topcoat, catalyst and fibreglass for your DIY roofing… - [600gm GRP Roofing Kit](https://www.grproofing.com/product/600gm-grp-roofing-kit): 600gm GRP fibreglass roofing kits that contain all the resin, topcoat, catalyst and fibreglass for your DIY roofing project - [450gm GRP Roofing Kit](https://www.grproofing.com/product/450gm-grp-roofing-kit): 450gm GRP roofing kits that contain all the Fibrelast resin, topcoat, catalyst and fibreglass reinforcement for your fibreglass roofing… - [GRP Roofing Repair Kit - 1m²](https://www.grproofing.com/product/grp-roofing-repair-kit): A GRP Roofing Repair Kit to cover approx 1 square metre. Includes everything you need to repair your fibreglass flat roof ### Overcoat Kits - [Overcoat Roofing System - 21kg](https://www.grproofing.com/product/overcoat-21kg): Overcoat is a high-performance flexible liquid roofing system that provides instant waterproof protection for virtually any roofing surface - [Overcoat Roofing System - 7kg](https://www.grproofing.com/product/overcoat-7kg): Overcoat is a high-performance flexible roofing system that provides instant waterproof protection for virtually any roofing surface - [Large Overcoat Tool Pack](https://www.grproofing.com/product/large-overcoat-tool-pack): This large tool kit includes rollers brushes and buckets for flat roof projects up to 50m². It’s designed for a clean and efficient… - [Overcoat Kit for Felt Roofing](https://www.grproofing.com/product/overcoat-felt): This Overcoat kit has been designed for application onto felt roofing surfaces offering fast installation, minimal disruption and seamless,… - [Medium Overcoat Tool Pack](https://www.grproofing.com/product/medium-overcoat-tool-pack): This medium tool kit includes rollers brushes and buckets for flat roof projects up to 30m². It’s designed for a clean and efficient… - [Small Overcoat Tool Pack](https://www.grproofing.com/product/small-overcoat-tool-pack): This small tool kit includes rollers brushes and buckets for flat roof projects up to 15m². It’s designed for a clean and efficient… - [Overcoat Kit for Asphalt Roofing](https://www.grproofing.com/product/overcoat-asphalt): This Overcoat kit has been designed for application onto asphalt roof surfaces offering fast installation, minimal disruption and seamless,… - [Overcoat Kit for Wood Surfaces](https://www.grproofing.com/product/overcoat-wood): This Overcoat kit has been designed for application onto wood surfaces such as OSB offering fast installation, minimal disruption and… - [Overcoat Kit for Lead Roofs & Gutters](https://www.grproofing.com/product/overcoat-lead): This Overcoat kit has been designed for application onto lead roofs and gutters offering fast installation, minimal disruption and… - [Overcoat Kit for Metal Roofs & Gutters](https://www.grproofing.com/product/overcoat-metal): This Overcoat kit has been designed for application onto Metal roofs and gutters offering fast installation, minimal disruption and… - [Overcoat Kit for Concrete Roofs](https://www.grproofing.com/product/overcoat-concrete): This Overcoat kit has been designed for application onto concrete roof surfaces offering fast installation, minimal disruption and… - [Overcoat Kit for EPDM Roofs](https://www.grproofing.com/product/overcoat-epdm): This Overcoat kit has been designed for application onto EPDM rubber roof surfaces offering fast installation, minimal disruption and… - [Overcoat Kit for Single Ply (PVC)](https://www.grproofing.com/product/overcoat-pvc): This Overcoat kit has been designed for application onto single ply (PVC) surfaces offering fast installation, minimal disruption and… - [Overcoat Kit for Asbestos Roofing](https://www.grproofing.com/product/overcoat-asbestos): This Overcoat kit has been designed for application onto asbestos roofing surfaces offering fast installation, minimal disruption and… - [Overcoat Kit for GRP Fibreglass Roofs](https://www.grproofing.com/product/overcoat-grp-overlay): This Overcoat kit has been designed for application onto GRP fibreglass roofing overlay systems offering fast installation, minimal… - [Overcoat Kit for GRP Fibreglass Roofs](https://www.grproofing.com/product/overcoat-grp): This Overcoat kit has been designed for application onto GRP fibreglass roofing surfaces offering fast installation, minimal disruption and… ### Fibrecoat Kits - [Fibrecoat Resin - 25kg](https://www.grproofing.com/product/fibrecoat-resin-25kg): Next-gen Fibrecoat resin for fibreglass roofing: versatile on new and old surfaces, low odour, styrene-free, fire retardant, and highly… - [Fibrecoat PU Activator - 4kg](https://www.grproofing.com/product/fibrecoat-pu-activator-4kg): Fibrecoat PU Activator is a single-component, low-viscosity primer for non-porous surfaces like metal, PVC, old polyurethane, polyurea… - [Fibrecoat Porosity Sealer - 4kg](https://www.grproofing.com/product/fibrecoat-porosity-primer): The Fibrecoat Porosity Sealer is a single-component primer for sealing dry porous concrete and cementitious surfaces before applying the… - [Fibrecoat Resin - 5kg](https://www.grproofing.com/product/fibrecoat-resin-5kg): Next-gen Fibrecoat resin for fibreglass roofing: versatile on new and old surfaces, low odour, styrene-free, fire retardant, and highly… - [Fibrecoat Humidity Primer - 5kg](https://www.grproofing.com/product/fibrecoat-humidity-primer-5kg) - [Fibrecoat Porosity Sealer Flex - 20kg](https://www.grproofing.com/product/fibrecoat-porosity-sealer-flex-20kg) - [Fibrecoat PU Activator - 20kg](https://www.grproofing.com/product/fibrecoat-pu-activator-20kg) - [Fibrecoat Porosity Sealer - 20kg](https://www.grproofing.com/product/fibrecoat-porosity-sealer-20kg) - [Fibrecoat Kit for Single Ply (PVC)](https://www.grproofing.com/product/fibrecoat-pvc): This Fibrecoat kit has been designed for application onto single ply (PVC) roof surfaces offering fast installation, minimal disruption and… - [Fibrecoat Kit for Rubber (EPDM)](https://www.grproofing.com/product/fibrecoat-epdm): This Fibrecoat kit has been designed for application onto rubber (EPDM) roof surfaces offering fast installation, minimal disruption and… - [Fibrecoat Kit for Metal Roofs & Gutters](https://www.grproofing.com/product/fibrecoat-metal): This Fibrecoat kit has been designed for application onto metal roofs and gutters offering fast installation, minimal disruption and… - [Small Fibrecoat Tool Pack](https://www.grproofing.com/product/small-fibrecoat-tool-pack): This small tool kit includes rollers brushes and buckets for flat roof projects up to 15m². It’s designed for a clean and efficient… - [Medium Fibrecoat Tool Pack](https://www.grproofing.com/product/medium-fibrecoat-tool-pack): This medium tool kit includes rollers brushes and buckets for flat roof projects up to 30m². It’s designed for a clean and efficient… - [Large Fibrecoat Tool Pack](https://www.grproofing.com/product/large-fibrecoat-tool-pack): This large tool kit includes rollers brushes and buckets for flat roof projects up to 50m². It’s designed for a clean and efficient… - [Fibrecoat Kit for GRP (Fibreglass) Roofing Surfaces](https://www.grproofing.com/product/fibrecoat-grp): This Fibrecoat kit has been designed for application onto fibreglass roofs offering fast installation, minimal disruption and seamless,… - [Fibrecoat Kit for Wood Surfaces](https://www.grproofing.com/product/fibrecoat-wood): This Fibrecoat kit has been designed for application onto wooden surfaces such as OSB and marine ply. It offers fast installation, minimal… - [Fibrecoat Kit for Felt Roofing](https://www.grproofing.com/product/fibrecoat-felt): This Fibrecoat kit has been designed for application onto Felt Roofing. It offers fast installation, minimal disruption and seamless,… - [Fibrecoat Kit for Concrete](https://www.grproofing.com/product/fibrecoat-concrete): This Fibrecoat kit has been designed for application onto a concrete roof surface. It offers fast installation, minimal disruption and… - [Fibrecoat Kit for Asbestos](https://www.grproofing.com/product/fibrecoat-asbestos): This Fibrecoat kit has been designed for application onto asbestos roof surfaces. It offers fast installation, minimal disruption and… - [Fibrecoat Kit for Asphalt](https://www.grproofing.com/product/fibrecoat-asphalt): This Fibrecoat kit has been designed for application onto asphalt roof surfaces. It offers fast installation, minimal disruption and… - [Fibrecoat Kit for Bitumen](https://www.grproofing.com/product/fibrecoat-bitumen): This Fibrecoat kit has been designed for application onto bitumen roof surfaces. It offers fast installation, minimal disruption and… ### Resins & Topcoats - [Fibrelast Base Resin - 20kg](https://www.grproofing.com/product/fibrelast-base-resin-20kg): 20kgs of Fibrelast GRP Fibreglass Polyester Roofing Resin with Free Catalyst. Free technical support and fast nationwide delivery - [Fibrelast Base Resin - 5kg](https://www.grproofing.com/product/fibrelast-base-resin-5kg): 20kgs of Fibrelast GRP Fibreglass Polyester Roofing Resin with free Catalyst. Free technical support and same day fast delivery - [Fibrelast Topcoat - 20kg](https://www.grproofing.com/product/fibrelast-topcoat-20kg): 20kg of Fibrelast GRP Fibreglass Polyester Roofing Topcoat with free catalyst - Available in 4 colours, free technical support and fast… - [Fibrelast Topcoat - 5kg](https://www.grproofing.com/product/fibrelast-topcoat-5kg): 5kg of Fibrelast GRP Fibreglass Polyester Roofing Topcoat with free catalyst - Available in 4 colours, free technical support and fast… ### Reinforcements - [600gm Chopped Strand Matting](https://www.grproofing.com/product/600gm-chopped-strand-matting): High quality lloyds approved marine grade 600gm chopped strand matting compatible with any fibreglass (GRP) roofing system - [450gm Chopped Strand Matting](https://www.grproofing.com/product/450gm-chopped-strand-matting): High quality lloyds approved marine grade 450gm chopped strand matting compatible with any fibreglass (GRP) roofing system - [Fibreglass Bandage Roll - 100mm](https://www.grproofing.com/product/fibreglass-bandage-roll-100mm): This 75-metre roll of 100mm 450gm Fibremat tape seals flat roofing joints before applying the main GRP fibreglass roofing system - [Surface Tissue - Per metre](https://www.grproofing.com/product/surface-tissue): Surface tissue is a thin fibreglass matting that when applied with the GRP roofing base resin system gives your roof a smooth finish - [225gm Chopped Strand Matting (Per Metre)](https://www.grproofing.com/product/225gm-chopped-strand-matting): High quality lloyds approved marine grade 225gm chopped strand matting for use with the Fibrecoat advanced fibreglass roofing system - [150gm Fibremat Reinforcement – 5 metres](https://www.grproofing.com/product/fibremat-150-5metre): Fibremat - A 5 metre roll of 150gm fibreglass chopped strand matting reinforcement for use with the Fibrecoat liquid applied roofing system - [150gm Fibremat Reinforcement - 10 metres](https://www.grproofing.com/product/fibremat-150-10metres): Fibremat - A 10 metre roll of 150gm fibreglass chopped strand matting reinforcement for use with the Fibrecoat liquid applied roofing system - [150gm Fibremat Reinforcement - 25 metres](https://www.grproofing.com/product/fibremat-150-25m): Fibremat - A 25 metre roll of 150gm fibreglass chopped strand matting reinforcement for use with the Fibrecoat liquid applied roofing system - [150gm Fibremat Reinforcement - Full roll](https://www.grproofing.com/product/fibremat-150-full): Fibremat - A full roll of 150gm fibreglass chopped strand matting reinforcement for use with the Fibrecoat liquid applied roofing system - [Fibreglass Tape - 150mm](https://www.grproofing.com/product/fibreglass-tape-150mm) - [Fibreglass Tape - 100mm](https://www.grproofing.com/product/fibreglass-tape-100mm) ### Trims & Corners - [C2 Left Fillet to Trim Corner](https://www.grproofing.com/product/c2-left-fillet-to-trim-corner): C2 Fillet to trim corners are used at the junction of flat roof and abutting wall, these corners are compatible with A200, B260 & D260 - [F300 Flat Flashing](https://www.grproofing.com/product/f300-flat-flashing): The F300 is a flat flashing that's mainly used at the intersection of a pitched roof and flat roof often found on dormers - [A200 Drip Fascia Trim](https://www.grproofing.com/product/a200-drip-fascia-trim): Made in the UK and sold in 3 metre lengths, the A200 trim is fitted to the edge of your roof and allows the water to drain off into the… - [A170 Drip Fascia Trim](https://www.grproofing.com/product/a170-drip-fascia-trim): Made in the UK the he A170 GRP profile fits to the edge of the roof and allows drainage into the gutter - [A250 Drip Fascia Trim](https://www.grproofing.com/product/a250-drip-fascia-trim): Made in the UK the A250 trim has an extra deep fascia to allow gutter penetration and is fitted to lowest edge of the roof - [B260 Raised Edge Trim](https://www.grproofing.com/product/b260-raised-edge-trim): The B260 is an upstand trim made in the UK and is fitted to contain and direct the flow of water to a gutter on your GRP Fibreglass flat… - [B310 Raised Edge Trim](https://www.grproofing.com/product/b300-raised-edge-trim): The B300 is an upstand trim made in the UK. It's fitted to contain and direct the flow of water to a gutter on your GRP Fibreglass Roof - [C1 Universal External Corner](https://www.grproofing.com/product/c1-universal-external-corner): The C1 universal external corners are made in the UK and compatible with both A200 and B260 trims when used on an adjoining edge - [C3 External Corner](https://www.grproofing.com/product/c3-external-corner): C3 external GRP fibreglass roofing fillet corners made in the UK are for use with the D260 trim - [C4 Universal Internal Corner](https://www.grproofing.com/product/c4-universal-internal-corner): C4 Universal pre-formed internal left and right hand corners are made in the UK and compatible with both A200 & B260 trims - [C5 Roof Ridge Closures](https://www.grproofing.com/product/c5-roof-ridge-closures): These GRP Fibreglass Roofing C5 roof ridge closure are made in the UK are compatible wth E280 expansion joint/ridge trims - [C6 Rolled Rib Closure](https://www.grproofing.com/product/c6-rolled-rib-closure): These C6 rolled rib closures are compatible wth E35 simulated lead roll trims - [C100 Simulated Lead Flashing](https://www.grproofing.com/product/c100-simulated-lead-flashing): Made in the UK and sold in 3 metre lengths, the C100 is a simulated lead flashing, generally fitted in conjunction with D260 angle fillet… - [D260 Wall Fillet Trim](https://www.grproofing.com/product/d260-wall-fillet-trim): The D260 is an angle fillet trim, fitted where the roof abuts a wall or vertical face, against parapet walls, in box gutters etc - [F600 Flat Flashing](https://www.grproofing.com/product/f600-flat-flashing): F600 flat flashing is mainly used as continuous flashing under slates at roof junction. The product is either sold by the metre or in a… - [G180 Gutter Trim](https://www.grproofing.com/product/g180-gutter-trim): The G180 trim is used to allow for expansion on large roofs (over 50m2) it also acts as an integral gutter to aid drainage - [AT195 Internal Angle Trim](https://www.grproofing.com/product/at195-internal-angle-trim): The AT195 internal trim is used where ever the roof covering needs to cover a surface that needs to continue perpendicular to the current… - [AT195 External Angle Trim](https://www.grproofing.com/product/at195-external-angle-trim): The AT195 external angle trim is used where ever the laminate needs to cover a surface which needs to continue perpendicular to the current… - [C3 Internal Corner](https://www.grproofing.com/product/c3-internal-corner): C3 internal fillet corners, for use with the D260 trim - [C2 Right Fillet to Trim Corner](https://www.grproofing.com/product/c2-right-fillet-to-trim-corner): C2 Fillet to trim corners are used at the junction of flat roof and abutting wall, these corners are compatible with A200, B260 & D260 - [E35-40 Simulated Rolled Joint](https://www.grproofing.com/product/e35-40-simulated-rolled-joint): Supplied in 3 metre lengths the E35-40 simulated rolled joint is used in GRP Roofing to simulate the appearance of raised rolled lead - [C7 Simulated Lead Flashing - External Corner](https://www.grproofing.com/product/c7-simulated-lead-flashing-external-corner): C7 Simulated lead flashing corners are for use with C series simulated lead flashing and are designed to replace traditional lead flashings - [C7 Simulated Lead Flashing - Internal Corner](https://www.grproofing.com/product/c7-simulated-lead-flashing-internal-corner): C7 Simulated lead flashing corners are for use with C series simulated lead flashing and are designed to replace traditional lead flashings - [C150 Simulated Lead Flashing](https://www.grproofing.com/product/c150-simulated-lead-flashing): Made in the UK and sold in 3 metre lengths, the C150 is a simulated lead flashing, generally fitted in conjunction with D260 angle fillet… - [B240 Raised Edge Trim](https://www.grproofing.com/product/b240-raised-edge-trim): Made in the UK and sold in 3-metre lengths, the B240 is an up-stand trim, fitted to contain and direct the flow of water to a gutter ### Outlets - [Through wall GRP parapet outlet](https://www.grproofing.com/product/grp-parapet-outlet): UK made GRP parapet outlet for horizontal drains, decks, terraces, and box gutters. Durable and efficient water management solution - [GRP Rainwater Outlet](https://www.grproofing.com/product/grp-rainwater-outlet): UK-made GRP rainwater outlet for fibreglass roofs, designed for use with 68mm down-pipe. Durable and efficient water drainage solution ### Tools & Accessories - [Catalyst Dispenser - Large](https://www.grproofing.com/product/large-catalyst-dispenser): These calibrated bottles are perfect for accurately measuring catalyst for use with GRP fibreglass roofing applications - [2" Laminating Brush](https://www.grproofing.com/product/2-inch-laminating-brush): Chemical resistant 2" laminating brushes for use when doing small intricate GRP fibreglass roofing work - [3" Laminating Brush](https://www.grproofing.com/product/3-inch-laminating-brush): Chemical resistant 3" laminating brushes for use when doing small intricate GRP fibreglass roofing work - [Acetone - 1 Litre](https://www.grproofing.com/product/acetone-1-litre): High quality virgin grade acetone used for cleaning GRP fibreglass roofing tools - [2.5 Litre Mixing Bucket](https://www.grproofing.com/product/2-5-litre-mixing-bucket): High density polypropylene 2.5 litre mixing bucket suitable for mixing and cleaning fibreglass roofing chemicals and tools - [5 Litre Mixing Bucket](https://www.grproofing.com/product/5-litre-mixing-bucket): High density polypropylene 5 litre mixing bucket suitable for mixing and cleaning fibreglass roofing chemicals and tools - [Nylon Resin Roller - 150mm](https://www.grproofing.com/product/150mm-6-nylon-base-resin-rollers): High quality, heavy duty medium pile nylon chemical resistant roller with a 41mm inner core for expert GRP roof system application - [Nylon Resin Roller - 250mm](https://www.grproofing.com/product/250mm-nylon-base-resin-rollers): High quality medium pile 250mm (9") nylon chemical resistant roller for expert GRP fibreglass roof system application - [Velour Topcoat Roller - 150mm](https://www.grproofing.com/product/150mm-velour-finishing-topcoat-rollers): High quality 150mm velour chemical resistant topcoat roller for expert application of the GRP fibreglass roofing finishing topcoat - [Velour Topcoat Roller - 250mm](https://www.grproofing.com/product/250mm-velour-finishing-topcoat-rollers): High quality 250mm velour chemical resistant topcoat roller for expert application of the GRP fibreglass roofing finishing topcoat - [15 Litre Resin Roller Bucket](https://www.grproofing.com/product/15-litre-resin-roller-bucket): 15 litre resin roller scuttle is a rectangular plastic bucket with measuring scale. It has a ribbed interior to aid loading onto the… - [5 Litre Resin Roller Bucket](https://www.grproofing.com/product/5-litre-resin-roller-bucket): The 5 litre resin roller scuttle is a rectangular plastic bucket with measuring scale. It has a ribbed interior to aid loading onto the… - [Slate Grey Non-slip surface finish](https://www.grproofing.com/product/non-slip-surface-finish): Slate granules for GRP flat roofing, used to create a non-slip surface with the standard grey Fibrelast finishing topcoat - [Catalyst](https://www.grproofing.com/product/catalyst): Catalyst curing agent for the GRP roofing base resin and finishing topcoat system comes in three curing speeds for optimum curing times - [Roller Extension Pole](https://www.grproofing.com/product/roller-extension-pole): Telescopic extension pole expands up to 1.5 metres and is compatible with all our fibreglass roofing rollers, ensuring easy and efficient… - [Sanding Paper - 60 grit](https://www.grproofing.com/product/sanding-paper-60-grit): High-quality 60 grit sand paper for wood and GRP, available to purchase by the metre or in rolls, ensuring smooth finishes for all your… - [Masking Tape (48mm)](https://www.grproofing.com/product/masking-tape-48mm): High-performance 48mm masking tape for GRP fibreglass roofing applications, ensuring precise and clean edges for professional-grade results… - [Digital Infrared Thermometer](https://www.grproofing.com/product/digital-infrared-thermometer): Accurate to within 3°, the Stanley Intelli Tools Digital Infrared Thermometer is ideal for precise deck and GRP resin temperature… - [Measuring Syringe - 50ml](https://www.grproofing.com/product/measuring-syringe-50ml): Large 50ml medical grade syringe, ideal for measuring small amounts of catalyst for use with a GRP fibreglass roofing system - [Consolidating Roller - 225mm x 21mm](https://www.grproofing.com/product/consolidating-roller-225mm-x-21mm): 225mm (9 inches) consolidating roller used to work the GRP fibreglass roofing resin into the fibreglass eliminating any trapped air - [Consolidating Roller - 140mm x 21mm](https://www.grproofing.com/product/consolidating-roller-140mmx21mm): 140mm (5.5 inches) consolidating roller is used to work the GRP fibreglass roofing resin into the fibreglass eliminating any trapped air - [Consolidating Roller - 70mm x 21mm](https://www.grproofing.com/product/consolidating-roller-70mm-x-21mm): The paddle roller is the perfect tool for working the GRP roofing resin into the fibreglass reinforcement and getting rid of any air pockets - [Galvanised Clout Nails - 30mm x 265mm](https://www.grproofing.com/product/galvanised-clout-nails-30mm-x-265mm): Galvanised Clout Nails for GRP Roofing with a size of 30mm and a guage of 2.65mm they are perfect for use with our fibreglass roofing trims - [E280 Raised Ridge Roll](https://www.grproofing.com/product/expansion-joint): Allows for expansion and simulates the appearance of raised rolled lead joints. Can also be used to create rolls on any ridged detail - [Small Fibrelast GRP Roofing Tool Kit](https://www.grproofing.com/product/small-grp-roofing-tool-pack): This tool pack has been designed for use with your GRP roofing project and contains all the tools you will need for a small-sized… - [Medium Fibrelast GRP Roofing Tool Kit](https://www.grproofing.com/product/medium-grp-roofing-tool-pack): This GRP roofing tool pack has all the tools you'll need for a small to medium sized flat roofing project - [Large GRP Roofing Tool Kit](https://www.grproofing.com/product/large-grp-roofing-tool-pack): This tool pack is designed for your grp fibreglass roofing project and includes all the tools needed for large flat roofs over 35m² - [Fibrecoat Porosity Sealer Flex - 4kg](https://www.grproofing.com/product/porosity-sealer-flex-4kg) - [Integrated Solar Panel Fixing Points](https://www.grproofing.com/product/integrated-solar-panel-fixing-points): Iinnovative solar panel fixing solution offers unparalleled performance and reliability for seamlessly integrating onto new or existing… ### Safety - [Latex Disposable Gloves - Large](https://www.grproofing.com/product/large-latex-disposable-gloves): Latex disposable gloves are supplied in a box of 100 and are lightly powdered inside to absorb moisture keeping the hands dry and sweat-free - [Safety Spectacles](https://www.grproofing.com/product/safety-spectacles): High quality spectacle style safety goggles, essential to protect your eyes from chemical splashes from the GRP roofing resin, topcoat and… - [Disposable Coveralls](https://www.grproofing.com/product/disposable-coveralls): Disposable coveralls are great to use with GRP fibreglass roofing and will protect your skin and clothing from resin and topcoat splashes - [Eye wash Station](https://www.grproofing.com/product/eyewash-station): The compact briefcase style eye wash kit is the perfect on-hand protection in case of chemical incidents involving GRP roofing products - [Eye Wash Station Refill 500ml](https://www.grproofing.com/product/eye-wash-station-refill-500ml): Saline eye wash is sterile and for irrigating eyes in the event of getting fibreglass roofing resin, topcoat or catalyst in the eyes - [Moulded Dust Mask](https://www.grproofing.com/product/moulded-dust-mask) - [Heavy duty gloves](https://www.grproofing.com/product/heavy-duty-gloves): Heavy duty gloves for use with GRP Roofing products. These gloves can be cleaned off with acetone ready to use again and again ### Repair & Maintenance - [Grey PU Adhesive](https://www.grproofing.com/product/grey-pu-adhesive): Soudaflex 40 FC is a high quality, one component polyurethane sealant with high modulus for a wide range of sealing and bonding applications - [Sharkseal multi-surface sealer - 310ml](https://www.grproofing.com/product/sharkseal): Sharkseal is a single-part, adhesive sealant. It's solvent and isocyanate-free and bonds to virtually any roofing material either dry, wet… - [Roof Filler - Flat Roof Ponding Repair System](https://www.grproofing.com/product/rooffiller): Resolve ponding water on flat roofs with Roof Filler, a high-strength levelling system that restores drainage and prepares surfaces for… - [Roofrinse Fugicidal Roof Wash and Mould Remover - 5 Litres](https://www.grproofing.com/product/roofrinse): Biodegradable flat roof cleaning liquid for removing moss, algae, lichen and surface dirt. Ideal for flat roof maintenance and preparation… ### Green Roofing - [Sedum Green Roofing Modules - 1m² Kit](https://www.grproofing.com/product/sedum-green-roofing-modules): Easily install our low-maintenance, pre-grown Sedum green roofing modules to add vibrant life to your roof. Perfect for any home - [Sedum & Wildflower Green Roofing Modules - 1m² Kit](https://www.grproofing.com/product/sedum-wildflower-green-roofing-modules): Discover the ultimate bio-diverse green roof: low-maintenance, pre-grown Sedum & Wildflower modules with year-round appeal and seasonal… - [Edge Guard - 1 metre](https://www.grproofing.com/product/green-roof-trim): UK-made green roof trim guard sold in 1m lengths, easily installed without fixings, and includes protection fleece for green roofing modules - [Scottish Pebbles 20kg bag](https://www.grproofing.com/product/scottish-pebbles-20kg): Add Scottish pebbles to your green roof for attractive walkways and borders, improving drainage, soil erosion control, and maintenance ## Questions & Answers - [How much does GRP roofing cost?](https://www.grproofing.com/questions/general/how-much-does-grp-roofing-cost): The question answered by our technical support team was is there a fixed installation price for GRP fibreglass flat… - [Why do I need a Survey?](https://www.grproofing.com/questions/general/why-do-i-need-a-survey): We answer the question by Steve on why it's required to have one of our nationwide contractors to perform a free site… - [What areas of the UK do you cover?](https://www.grproofing.com/questions/general/what-areas-of-the-uk-do-you-cover): Samantha asked what areas of the United Kingdom do our network of trained and approved GRP fibreglass roofing… - [Can GRP be used to overlay an existing roof?](https://www.grproofing.com/questions/system/can-grp-be-used-to-overlay-an-existing-roof): Simon asked if a GRP fibreglass roofing system can be used to overlay and existing roof surface of felt, bitumen,… - [Is the GRP Roofing System Fire Retardant?](https://www.grproofing.com/questions/system/grp-roofing-system-fire-retardant): Peter asked if the Fibrelast GRP fibreglass roofing system has been tested and approved as a fire retardant product - [Can You Walk on a GRP Roof?](https://www.grproofing.com/questions/system/can-you-walk-on-a-grp-roof): For this question, Karen asked us if GRP fibreglass roofing is strong and durable enough to walk on when the system has… - [How long does it take to install a GRP Roof](https://www.grproofing.com/questions/installation/how-long-does-it-take-to-install-a-grp-roof): Questions & AnswersASK A QUESTIONJust wanted to know how long it would take to lay a fibreglass roof, we have a 15… - [Can Fibrelast be laid as a warm roof?](https://www.grproofing.com/questions/installation/can-fibrelast-be-laid-as-a-warm-roof): John wants to know if the GRP Fibreglass roofing system can be laid as a warm roof - [How many contractors are needed?](https://www.grproofing.com/questions/installation/how-many-contractors-are-needed): In this question Jane asked us how many contractors are needed to apply GRP roofing materials on a standard flat roof… - [What is a flexible system?](https://www.grproofing.com/questions/system/what-is-a-flexible-system): Questions & AnswersASK A QUESTIONJust want to know what a flexible GRP roofing system is and why it is important to… - [How thick does the topcoat need to be?](https://www.grproofing.com/questions/installation/how-thick-does-the-topcoat-need-to-be): How thick do I apply the GRP roofing finishing topcoat to the cured resin surface? - [Can i use chipboard on a GRP roof?](https://www.grproofing.com/questions/installation/can-i-use-chipboard-on-a-grp-roof): I have a new fibreglass roofing project and wanted to know if I can use chipboard as the decking for my new GRP roofing… - [What expansion gap do I need to allow on large OSB?](https://www.grproofing.com/questions/installation/expansion-gap-needed-on-large-osb): Sean wants to know what expansion needs to be allowed when using 8x4 OSB decking on a GRP fibreglass flat roof - [How do I attached GRP roofing trims](https://www.grproofing.com/questions/installation/attached-grp-roofing-trims): Reece Hale asked how I should go about attaching the GRP fibreglass roofing trims to the OSB decking prior to applying… - [Can I apply GRP roofing directly onto felt or bitumen?](https://www.grproofing.com/questions/installation/can-apply-grp-roofing-directly-onto-felt-bitumen): Dylan wants to know if he can apply a GRP fibreglass roofing system directly over the top of felt or bitumen - [How do I get a really smooth finish?](https://www.grproofing.com/questions/installation/get-really-smooth-finish): Questions & AnswersASK A QUESTIONThe roof that i'm thinking of using GRP roofing on is overlooked and i'm wanting the… - [Can I apply the topcoat another day?](https://www.grproofing.com/questions/installation/can-apply-topcoat-another-day): Jack has a large roof to do and my not get around to applying the topcoat, he wants to know if he can apply the topcoat… - [Can I apply a new layer of topcoat over the roof?](https://www.grproofing.com/questions/installation/can-i-apply-a-new-layer-of-topcoat-over-the-roof): Evan wants to know if it's possible to apply a fresh new layer of finishing topcoat to his existing GRP fibreglass… - [Can I board over a felt roof for GRP?](https://www.grproofing.com/questions/installation/boarding-over-felt-with-fibreglass): Aiden wants to know if it's possible to apply OSB decking on top of his existing flat roof and apply a GRP roofing… - [Will the sun damage a GRP roof?](https://www.grproofing.com/questions/system/will-sun-damage-grp-roof): Leah is thinking about switching to GRP roofing and wanted to know if the Sun can damage a GRP roof as easily as… - [When do I need expansion joints](https://www.grproofing.com/questions/installation/do-i-need-expansion-joints): Thomas has had some conflicting advice and wants to know when he should use expansion joints on his 53 square metre… - [What is the fibreglass bandage used for?](https://www.grproofing.com/questions/installation/what-is-fibreglass-bandage): Harry is doing his roof in the next month or so and wants to know what fibreglass bandage is used for and does he need… - [Roof colour change](https://www.grproofing.com/questions/installation/roof-colour-change): Lilly has had her GRP fibreglass roof down for 5 years and wants to know if she can change the colour of the roof… - [How easy is GRP Roofing to install?](https://www.grproofing.com/questions/installation/how-easy-is-grp-roofing-to-install): Harry has a felt garage roof that he wants to re-do himself in the summer using our GRP roofing system. He wants to… - [Reparing a GRP roof surface](https://www.grproofing.com/questions/installation/reparing-a-grp-roof-surface): William has a storm damaged GRP fibreglass roof and wants to know how easy it would be for him to repair it himself… - [GRP roofing in winter](https://www.grproofing.com/questions/installation/grp-roofing-winter): With the bad weather we've had Joe wants to know if he can lay a GRP roof in cold winter temperatures - [GRP on pitched roofs](https://www.grproofing.com/questions/installation/grp-pitched-roofs): Henry wants to know if he can use the standard GRP fibreglass roofing system on a pitched roof - [Standard and low cost systems](https://www.grproofing.com/questions/general/standard-and-low-cost-systems): Katherine wants to know what the difference is between standard or low cost GRP roofing systems and Premium products… - [Sky lights and lanterns](https://www.grproofing.com/questions/installation/sky-lights-and-lanterns): Kayleigh is getting a new flat roofed extension and she wants to know if you can incorporate a skylight or roof lantern… - [Calculating square metres](https://www.grproofing.com/questions/general/calculating-square-metres): Colby wants to know how to convert his existing roof measurements into square metres so he can order one of our GRP… - [Resin coverage](https://www.grproofing.com/questions/installation/resin-coverage): Jack wants to know how many square metres a single can of GRP fibreglass roofing resin system will cover on his flat… - [Lloyds Approval](https://www.grproofing.com/questions/general/lloyds-approval): Questions & AnswersASK A QUESTIONI notice on your website the fibreglass matting and the Fibrelast resin system are… - [Metal trims](https://www.grproofing.com/questions/installation/metal-trims): Luke wants to use Fibrelast on his flat roof but wants to know if the GRP roofing system will stick to metal roofing… - [Lead effect trims](https://www.grproofing.com/questions/system/lead-effect-trims): Toby wants to re-do his roof with the Fibrelast GRP roofing system, but wants to know what trims he'll need to achieve… - [Custom colours](https://www.grproofing.com/questions/system/custom-colours): Kate has a flat roof that she wants to use the GRP roofing system on and wants to know if she can get the finish in a… - [Kit quantities](https://www.grproofing.com/questions/system/kit-quantities): Chris wants to know if there is somewhere he can see how much product goes into our GRP fibreglass roofing kits so he… - [Delivery prices](https://www.grproofing.com/questions/general/delivery-prices): Zoe is going to place an order but wants to know in advance how much our shipping costs are. Our shipping costs are… - [Collecting orders](https://www.grproofing.com/questions/general/collecting-orders): Ed lives locally to us and wants to know if he can collect his GRP fibreglass roofing order direct from our warehouse… - [Catalyst and Resin](https://www.grproofing.com/questions/general/catalyst-and-resin): Ewan wants to know why we don't include catalyst with the Fibrelast GRP fibreglass roofing base resin and topcoat like… - [Balcony expansion joints](https://www.grproofing.com/questions/general/balcony-expansion-joints): Danielle has a large balcony flat roof with an expansion joints, and while large GRP fibreglass roofs need expansion… - [Mixing the catalyst](https://www.grproofing.com/questions/system/mixing-the-catalyst): Luca wants to know how long does it take to mix the catalyst into the GRP fibrelgass roofing resin and topcoat before… - [Can I cut the green roofing modules?](https://www.grproofing.com/questions/can-i-cut-the-green-roofing-modules): Questions & AnswersASK A QUESTIONYes, the green roofing modules can be cut down to size using either a hand saw or… - [Green roof guard trim](https://www.grproofing.com/questions/green-roof-guard-trim): Questions & AnswersASK A QUESTIONUnless there is a parapet or up-stand then we would recommend that you use green roof… - [Green roofing weight](https://www.grproofing.com/questions/green-roofing-weight): Questions & AnswersASK A QUESTIONTo be sure you would need a structural engineer or check with the installing… - [Green roof delivery](https://www.grproofing.com/questions/green-roof-delivery): Questions & AnswersASK A QUESTIONOnce you have ordered your Green roofing kit, it will be delivered directly to site in… - [What is GRP Roofing?](https://www.grproofing.com/support/what-is-grp-roofing): An overview of GRP roofing, also known as fibreglass roofing, it's is a popular choice for both commercial and… - [How to accurately measure out the quantity](https://www.grproofing.com/questions/how-to-accurately-measure-out-the-quantity) - [What's the shelf life of the Fibrecoat system?](https://www.grproofing.com/questions/whats-the-shelf-life-of-the-fibrecoat-system) - [Does the PU Activator make the surface waterproof?](https://www.grproofing.com/questions/does-the-pu-activator-make-the-surface-waterproof) - [Can I use Fibrecoat without the Glassfibre?](https://www.grproofing.com/questions/can-i-use-fibrecoat-without-the-glassfibre) - [Will Fibrecoat bond to GRP Roofing trims](https://www.grproofing.com/questions/will-fibrecoat-bond-to-grp-roofing-trims) - [How long does it take for Fibrecoat to become watertight?](https://www.grproofing.com/questions/how-long-does-it-take-for-fibrecoat-to-become-watertight) - [Does my GRP Roof need an expansion joint](https://www.grproofing.com/support/does-my-grp-roof-need-an-expansion-joint): In this article we take a look at expansion joints, what is expansion and contraction on a flat roof and if your… - [Why is GRP Roofing so Smelly?](https://www.grproofing.com/support/why-is-grp-roofing-so-smelly): Learn why a GRP Roofing system smells, the science behind the odour, and effective ways to manage and reduce it during… - [Understanding Fire Ratings](https://www.grproofing.com/support/understanding-fire-ratings): Discover the UK’s fire ratings for roofing systems, their importance, and changes post-Grenfell Tower fire to enhance… - [Shelf life of Fibreglass Roofing Systems](https://www.grproofing.com/support/shelf-life): Learn about the shelf life of fibreglass roofing resins, topcoats, primers and catalysts, including storage tips to… - [Cost of Installing a Fibreglass Roof in 2026](https://www.grproofing.com/support/fibreglass-roofing-cost-guide): Discover the cost of installing a fibreglass roof in the UK in 2026, including factors affecting cost and potential… - [Ultimate Guide to Fibreglass Roofing Guarantees](https://www.grproofing.com/support/guarantees): Discover the types of fibreglass roofing guarantees in the UK, from product to installation, and ensure your investment… - [Common issues with Fibreglass Roofing & How to Fix](https://www.grproofing.com/support/common-issues-with-fibreglass-roofing-how-to-fix): Discover common issues with GRP fibreglass roofing, including cracks and splits and how to prevent and fix them for… - [Different Types of Fibreglass Roofing Systems](https://www.grproofing.com/support/different-types-of-fibreglass-roofing-systems): Discover the different types of GRP fibreglass roofing systems on the market in the UK today and which one is right for… - [A Guide to Fibreglass Flat Roof Building Regulations in the UK](https://www.grproofing.com/support/building-regulations): Learn about UK GRP fibreglass flat roof building regulations, including planning permission, fire safety, insulation,… - [The Ultimate Guide to Choosing a Fibreglass Roofing Contractor](https://www.grproofing.com/support/contractor-guide): Looking for a reliable fibreglass roofing contractor? Our guide shows you how to compare quotes, check accreditations,… - [GRP Roofing Topcoat Flaking or Peeling? Here's how to fix it](https://www.grproofing.com/support/grp-fibreglass-roof-topcoat-flaking-peeling): Discover why GRP roof topcoats flake and how to fix them. Expert help on causes, repair methods, and prevention for… ## Technical Articles - [How to apply for a GRP roofing trade card](https://www.grproofing.com/support/trade-card/how-to-apply-for-a-grp-roofing-trade-card): Find out how to apply for your free GRP Roofing Trade card and get access to trade-only pricing on fibreglass roofing… - [How to Repair a GRP Fibreglass Roof](https://www.grproofing.com/support/technical/how-to-repair-a-grp-fibreglass-roof): In this 5 step guide we show you how-to repair and patch a GRP fibreglass roof that has been damaged - [Why use OSB3 with GRP Roofing?](https://www.grproofing.com/support/technical/why-use-osb3-grp-roofing): A good fibreglass roof that lasts over 20 years will need a new deck, in this blog post we look at the best decking… - [What is Fibreglass Matting?](https://www.grproofing.com/support/technical/what-is-fibreglass-matting): What is fibreglass matting, where does it come from and what type do you need to put on your GRP fibreglass flat roof… - [The History of GRP Roofing](https://www.grproofing.com/support/history-grp-roofing): Find out the history behind fibreglass roofing as we take look at the journey the GRP roofing materials took to get to… - [Roof cracking or banging](https://www.grproofing.com/support/roof-cracking-or-banging): Loud banging or cracking noises coming from my GRP fibreglass roofing surface can be down to a number of different… - [Different types of green roofing](https://www.grproofing.com/support/technical/different-types-of-green-roofing): We explore the various green roof types for a fibreglass roof. Find the best green roofing option for your needs in… - [Installing Solar Panels onto a Fibreglass Roof Surface](https://www.grproofing.com/support/technical/solar-panels-fibreglass-roof): Securely install solar panels on GRP roofs with our step-by-step guide. Ensure stability, watertight integrity, and… - [Warm Roof vs. Cold Roof: A Comprehensive Guide](https://www.grproofing.com/support/technical/warm-vs-cold-roof): Discover the key differences between warm and cold flat roofs, including insulation placement, ventilation, and energy… - [UK Building Regulations for GRP Fibreglass Roofs: A Compliance Guide](https://www.grproofing.com/support/technical/grp-fibreglass-roofing-building-regulations): Learn how to ensure compliance with UK building regulations for GRP fibreglass flat roofs, including insulation, fire… ## Troubleshooting - [The base resin didn't cure](https://www.grproofing.com/troubleshooting/the-base-resin-didnt-cure): The base layer of GRP roofing resin didn't cure to the fibreglass and it is still tacky to the touch, how can I make it… - [The resin is curing too fast](https://www.grproofing.com/troubleshooting/resin-curing-fast): TroubleshootingThe resin system is curing too fast in the bucket before it can be applied to the roof.Either too much… - [The resin is still curing and its started to rain](https://www.grproofing.com/troubleshooting/the-resin-is-still-curing-and-its-started-to-rain): I'm in the middle of applying the GRP fibreglass roofing resin or finishing topcoat and it's started to rain, what do I… - [Water has contaminated the resin](https://www.grproofing.com/troubleshooting/water-has-contaminated-the-resin): Water has got on to the uncured GRP roofing surface and now I have white spots and a milky texture to the finish, how… - [GRP Roofing Topcoat Has Cracked](https://www.grproofing.com/troubleshooting/grp-roofing-topcoat-cracked): The finishing topcoat has cracked on my GRP fibreglass roof and I need to know how do I go about fixing the problem - [My GRP roof has standing water](https://www.grproofing.com/troubleshooting/my-grp-roof-has-standing-water): My GRP fibreglass flat roof has standing water or is pooling water in a certain area and I am concerned it might leak… - [The topcoat is still sticky](https://www.grproofing.com/troubleshooting/topcoat-still-sticky): The GRP fibreglass roofing topcoat is still sticky or tacky to the touch and i've added the correct amount of catalyst… - [Dealing with resin spillages and splashes](https://www.grproofing.com/troubleshooting/dealing-with-resin-spillages): How to clean up GRP fibreglass roofing resin spillages and splashes from windows, doors, plastics, pavements, pathways… ## Legal - [Website Terms](https://www.grproofing.com/terms) - [Sales Terms](https://www.grproofing.com/sales-terms) - [Privacy Policy](https://www.grproofing.com/privacy/policy) - [Cookie Policy](https://www.grproofing.com/privacy/cookies)