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Roofing

Find high-quality building supplies, materials, and systems for waterproofing and repairing flat or pitched roofs on any property. Coatings, membranes, kits, trims, and sealants offer lasting protection for felt, asphalt, concrete, metal, and timber. From liquid systems and repair kits to primers and reinforcements, this range suits garages, balconies, green roofs, and more - ideal for DIY or trade use.

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Bullet Roof Application Tools | Tools and PPE

Bullet Roof Application Tools

Bullet Roof Application Tools are a range of products used during the application of Bullet Roof coatings. Range of application tools available for purchase: Complete Rollers Roller Refills Consolidating Paddle Rollers Laminating Brushes 10 Litre Bucket Catalyst Dispensing Bottles Latex Gloves Masking Tape Please note: Images...

Price £1.14 (incl. VAT)
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Bullet Roof GRP Trims | High-gauge Roof Trims

Bullet Roof GRP Trims

Bullet Roof GRP trims deliver a quality thick gauge finish around the edges and details of your roof. Full details of available sizes, ranges and installation recommendations can be found at the bottom of the page. More Information Delivery Info

Price £20.82 (incl. VAT)
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Cromar Pro GRP Trims, Corners & Outlets | Advanced Glassfibre Roofing System

Cromar Pro GRP Trims, Corners & Outlets

Cromar Pro GRP Trims, Corners & Outlets, for use with Cromar`s Advanced Glassfibre Roofing System. Range of trims includes drip, raised edge, simulated lead flashing, angle fillet and roll mop External and internal raised angle trims Corner trims also available, in 7 configurations 3 configurations of rainwater outlets to choose from...

Price £7.73 (incl. VAT)
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Bullet Roof GRP Kit

Bullet Roof GRP Kit

Contains everything needed to apply the Bullet Roof GRP roof coating system, including resin, topcoat, matting, hardener, acetone, buckets and rollers. See further below for the full kit contents, and for what else you will need in addition. Available in a 20m2 kit Leak free and value for money roofing system For refurbishment or new flat...

Price £547.91 (incl. VAT)
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Cromar Pro GRP Roofing Kit | Advanced Glassfibre Roofing System

Cromar Pro GRP Roofing Kit

A handy kit containing everything required to install GRP for a 13 sqm roof.  Roofing kit contains:  1 x 20kg Pro GRP Resin 1 x 10kg Pro GRP Top Coat 1 x 450 Fibre Glass Matting 6.75kg (approx.) Includes GRP Accessory Kit (see further below for full contents)  GRP roofing trims required (sold separately)  Cold applied - no heat...

Price £396.62 (incl. VAT)
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KoverTek TekShield Standard GRP Kit | Rawlins Paints

KoverTek TekShield GRP Roof Kit

KoverTek TekShield GRP Roof Kits utilise KoverTek’s TekShield Roofing Resin Basecoat and either TekShield Standard Roofing Topcoat or TekShield Flexi Fire Rated Topcoat to create an easy to use kit with everything you need to complete a roof. Available in two versions; ‘Standard’ and ‘Fire Rated’ both offering 20 or 25 year material guarantees...

Price £366.07 (incl. VAT)
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Roofing Systems & Waterproofing Solutions – Liquid Roof Coatings, Membranes & Accessories


Roofing systems are essential for protecting against water ingress, UV damage, and temperature extremes. Our range supports construction and repair with coatings, membranes, sealants, trims, and reinforcements - designed for long-term durability and ease of use on common roof decks in both residential and commercial settings.

We supply polyurethane, acrylic, GRP, and bitumen systems for waterproofing flat roofs, balconies, dormers, and gutters. Many allow seamless application, rapid curing, and crack-bridging reinforcement. Complete kits include all tools and materials sized to your project. For detailing, we offer trims, tapes, primers, fleece, and sealants suited to OSB, concrete, metal, and existing roofs. From emergency repairs to new builds, our systems and roof paints provide reliable solutions with easy application and clear guidance - ideal for everything from outbuildings to industrial flat roofs.

Roofing FAQs


What is the best waterproofing system for a flat roof?

The best system depends on the substrate, usage, and expected lifespan. Liquid-applied systems like polyurethane and GRP are popular for their seamless finish and flexibility. Bitumen-based options are more traditional and still widely used. Acrylic membranes offer easy application and fast curing. Each has its advantages based on roof complexity, foot traffic, and weather exposure.

Can I apply roofing systems myself or should I hire a contractor?

Many roofing products are DIY-friendly, especially complete kits and liquid membranes designed for single-day application. However, larger projects or complex details such as parapets, drains, or junctions may benefit from professional installation to ensure long-term success. Always follow product instructions carefully.

How do I prepare a roof before applying a waterproofing system?

Clean and inspect the surface, removing loose debris, moss, and contaminants. Repair cracks or damaged areas, and ensure the substrate is sound. Apply a suitable primer if required, and make sure the roof is dry and stable before beginning the main application.

What accessories or extras might I need alongside a roofing system?

In addition to the primary coating or membrane, you may need primers, reinforcement fleece, trims, sealants, application tools, and cleaners. These support adhesion, detailing, and durability. Many roofing kits include these items, but standalone systems may require separate components.