- There are no more items in your cart
- Shipping Calculated at checkout
-
Sub-Total (inc. VAT)
£0.00
Need Help?
Flat Roof Paints
Flat roofs present unique challenges for coatings, including flat roof paint, due to the potential for standing water, year-round temperature changes, and UV degradation. Because of these constant exposures to water and UV rays, it's vital that your flat roof is properly maintained with durable paints and coatings. Click for more info.
If you are ever in doubt about whether a product is for flat roofs or pitched roofs, please check the product description, data-sheet, or contact our Technical Team for advice on which roof paint will be best for your project.
Subcategories
Cromar Cromapol Acrylic Roof Coating - Fibre Reinforced
A waterproofing, fibre reinforced liquid acrylic resin dispersed in solvent designed to prevent the ingress of water on flat roofs, pitched roofs, weathered asphalt and bituminous surfaces, gutters, concrete, brickwork, fibreglass, felt and metal (galvanised and ferrous). Excellent adhesion ‐ instant protection - no wash‐off Available in...
Eagle Aquapol Acrylic Roof Coating
For emergency roof repairs and routine maintenance on most surface types on failed industrial and domestic roofs. The coating is instantly waterproof after a single coat, applying even in damp conditions, remaining flexible with exceptional weather resistance. Instant roof repair for most roof types: Galvanised steel Iron zinc...
Watco Roofite Pour & Restore
A thick, flexible and highly watertight pourable-grade roof coating which can be applied by squeegee - enabling large areas of flat roof to be coated quickly and easily. Ideal for performing repairs to concrete, felt and asphalt. Part of the Roofite range - a range of products to repair, protect and waterproof roofs For the standard...
Eagle Desmopol Liquid Polyurethane Membrane
Waterproofs flat roofs, walkways and balconies, protecting against corrosion. 15-25 year guarantee - please see 'Guarantee Information' below for details Holds BBA/ETA certification for life expectancy in excess of 25 years Easy and quick application. No reinforcement required Can be applied even with zero pitch No seams or overlaps...
Rust-Oleum LeakSeal
Product Description Available in Black, White, Clear and Aluminium. Interior and exterior use. For use on metal, aluminium, PVC, masonry, asphalt roofing materials, and more. Flexible rubber coating seals leaks and cracks. Provides a watertight, paintable finish. Dries to a semi-smooth, firm finish that will not sag or...
Rust-Oleum Mathys Fillcoat Fibres
Available in dark or light grey. Instantly stops leaks and repairs cracks in roofs, terraces, gutters, ridge-pieces, chimney stacks, and pipes. For bituminous surfaces, hard PVC, polyester, zinc, aluminium, glass, and tiles. Applicable in all weather. UV resistant, hydrophobic.
Blackfriar Professional Solar Reflective Paint White
Blackfriar Professional White Solar Reflective Paint is a specially formulated reflective acrylic coating for reducing solar heat gain on tiles, felt, asphalt, wood, masonry and concrete surfaces. Reflective, textured finish Waterproofs and protects Flexible - allows for contraction and expansion Resists surface fungal growth Easy to...
Bullet Roof Mono
BBA Approved and formulated to the highest specification, this flat roof paint can be applied over almost any surface with or without full reinforcement dependent on performance/specification requirements and can achieve life expectancies of up to 25 years. Moisture cured allowing application in most weather conditions Excellent adhesion...
Britannia Aquashield High Build
A solvent-based, instantly waterproofing coating for exterior pitched or flat roofs, bitumen, asbestos cladding, metal, fibreglass roofs and more. Contains added fibres that interlace to cover up small gaps or cracks in the substrate. Rainfall immediately after application has no adverse effect Can be applied by brush or roller
Rust-Oleum Mathys Fillcoat
Available in black, light grey and dark grey. Instant leak stoppage; Ideal for roofs, non-walkable terraces, gutters, ridge-pieces, chimney stacks, and pipes. Excellent adhesion to a variety of substrates. Can be applied in all weather conditions.
Britannia Durashield
A smooth, cold applied rubber-based waterproofing flat and pitched roof system for a longer lasting seamless coating - a ten year life expectancy with just one coat over surfaces. Rainfall immediately after application has no adverse effect No primer (except on porous/friable surfaces) Reduced labour costs Flexible elastomeric system...
Eagle Ultraflex Waterproof Roof Coating
A high-performance, waterproofing system that can be used all year round on new and existing roofs, walkways, balconies, gutters, etc, with excellent adhesion to a variety of substrates, forming a seamless membrane that is fully cured and trafficable after 24 hours. Ready to use straight out of the tin - application with a solvent resistant...
KoverTek TekCryl One Coat Roof Repair
Cold applied to all types of roofs and structures, including flat, pitched as well as bituminous surfaces, gutters, brickwork, asbestos (see product data sheet), concrete, felt, metal & fibreglass surfaces. Note: TekCryl is not suitable for walkways or balconies and is not and not suitable for us on PVC or treated/sawn timber surfaces or...
Eagle DoubleCoat Pro-Reflect Liquid Waterproofing
A liquid elastomeric waterproofing membrane reinforced with microfibers and high aluminium content, for waterproofing of most types of roof surfaces and exposed metal structures. Highly recommended for industrial units and warehouses. For most roofs: Galvanised steel Iron zinc Asbestos Cement Roofing felt Asphalt Bituminous...
Cromar Rubber Coat Waterproof Coating
Cromar Rubber Coat Waterproof Coating (formerly Cromar Rubber Coat Liquid Roof Coating) is a brush, roll-on and sprayable high-performance coating that can be applied over many existing surfaces including concrete, wood, brick and metal, forming a durable and seamless waterproof membrane. Freeze/thaw stable; Water based; UV resistance - not...
Rust-Oleum Fillcoat Fibres Repair Kit
Available in dark grey. Waterproof elastic paint with crack-bridging fibres. For roofs, non-walkable terraces, gutters, ridge-pieces, chimney stacks, and pipes. Excellent adhesion to many substrates. Can be applied in all weather conditions.
Britannia Aquashield Eco
An acrylic, water-based, highly elastic coating for use on flat roofs, pitched roofs, weathered asphalt and bituminous surfaces, gutters, concrete, brickwork, GRP and fibreglass, felt and metal. Solvent free Dries to form durable and water-resistant finish Particularly suitable for general maintenance work Eco friendly formula...
Flag Roofix 20/10 Roofing Repair
A single pack elastomeric acrylic based (non-bitumastic) compound, with built in Draylon fibre reinforcement which has been specifically developed to provide instant waterproofing for leaking roofs. It can be used to repair specific areas that are leaking or waterproof an entire roof. For exterior use on flat roof areas, gutters, lead...
Bullet Roof RainStop
A high-build coat that is ideal for carrying out repairs to flat roofs, pitched roofs and gutters. Suitable substrates include weathered asphalt and bituminous surfaces, concrete, brickwork, fibreglass, felt and galvanised/ferrous metals. Not for use on timber surfaces, balconies, walkways, new/aged/plasticised PVC. Approx coverage:...
Britannia Aquashield Smooth
A solvent-based, ready to use product for waterproofing flat roofs, pitched roofs, weathered asphalt and bituminous surfaces, gutters, concrete, brickwork, fibreglass, felt and metal (galvanised and ferrous), instantly. Particularly suitable for general maintenance work Smooth coat recommended for easy-flow application Rainfall...
Rust-Oleum Mathys Dacfill HZ
Available in 2 shades of Grey. Two-component waterproofing coating for horizontal roofs. Provides durable protection. For bitumen, concrete, pre-painted surfaces, and roof tiles. Quick drying, touch dry in 1.5 hours. UV, acid rain, heat, frost, and pollution resistant. Professional use only.
Coo-Var Solar Reflective Paint Aluminium
Aluminium solar-reflective paint. Reduces heat build-up by deflecting sunlight. For stable felt, concrete, wood, and brick surfaces, primarily for roofs. High-reflective sheen finish.
Eagle Bitumen Trowel Mastic
A heavily bodied bituminous mastic for filling joints, cracks and splits in roofing and building materials such as roofing felt, asphalt, concrete, asbestos cement and metallic guttering and drainpipes. Immediately resists water penetration after application Apply by trowel or putty knife Typical coverage 2m²/litre (at 2mm thickness)
Cromar Hydrosil Silicone Roof Coating
A professional grade, solvent based, liquid applied, single component, moisture‐cure premium silicone coating that has been specifically formulated to deliver direct‐bond adhesion as a restoration and maintenance coating over most common roof substrates and membranes. Part of the Hydrosil Fluid Applied Professional Grade Silicone Coating...
Britannia Aquashield Standard
A ready to use, instantly waterproofing solvent-based coat for exterior pitched or flat roofs, bitumen, metal o fibreglass roofs, asbestos cladding and more. Contains added fibres that interlace to cover up small gaps or cracks in the substrate. Rainfall immediately after application has no adverse effect Can be applied by brush or...
Watco Roofite
A unique blend of bitumen, rubber and tough fibre reinforcement that instantly weatherproofs and refurbishes roofs. Ideal for performing repairs to split, cracked, holed and porous asbestos, corrugated iron, concrete, tiled and felted roofs. Part of the Roofite range - a range of products to repair, protect and waterproof roofs Flexible –...
Coo-Var Solar Reflective Paint White
White acrylic solar-reflecting paint designed to reduce heat build-up. For concrete, stable felt, wood, and brick surfaces, primarily on roofs. VOC content under 140g/l, Offers strong protection from sunlight.
Watco Balcony Coating
A flexible waterproofer for balconies and walkways. 2 component product comprising of synthetic resins, silica sands and selected cements. Permanently flexible, anti-slip surface Resistant to weathering and UV One coat usually sufficient Hard wearing for heavily used surfaces Note: While great care is taken with the colour samples...
Eagle Desmopol Waterproofing Roofing Kits 15 Year Guarantee
Contains enough material to apply a fully waterproof system on 6m², 12.5m² or 25m² of flat roof, walkway or balcony. The kit is suitable for application on to most roofing substrates including Concrete*, TPO*, EPDM*, Single Ply*, Rubber*, Asphalt, Felt, GRP, Plywood and OSB. *Eagle Primer PU-1000 would need to be purchased separately for use...
Eagle Aluminium Paint
Eagle Aluminium Paint, a topcoat for bitumen coatings and substrates that provides protection against solar degradation and heat gain with a solar-reflective finish. Dry in approx. 1 hour For use on: Bituminous coatings Aged asphalt Primed steel Apply by brush or mohair roller Requires just 2 coats More Information Delivery...
Tor Elastadeck Grit Coat
Tor Elastadeck Grit Coat is a two pack moisture activated polyurethane coating with zero solvent odour, providing a long term waterproofing membrane for protection of balconies. Basecoat with grit broadcast as part of a multi-layer Elastadeck Balcony System providing a hardwearing, resin flooring system, designed to waterproof and provide slip...
Tor Elastadeck Sealer Coat
Tor Elastadeck Sealer Coat is a high solids two-pack flexible sealercoat based on a polyaspartic resin system available in 8 colours. A zero solvent odour, flexible top coat for use within the Elastadeck range to encapsulate anti-slip aggregates and provide a durable, full gloss finish. A fast-curing, hardwearing, resin flooring system,...
Cromar Cromapol Acrylic Roof Coating - Fibre Free
A waterproofing, fibre free liquid acrylic resin dispersed in solvent designed to prevent the ingress of water onflat and pitched roofs, roof lights, flashings, fibre cement sheeting, gutters, slate, asphalt, lead, metal and roofing felt (primed). Excellent adhesion No wash‐off Excellent solar reflectivity (white & grey) Fully...
Need Help?
Need Help?
About Flat Roofs
Flat roofs have a long history, dating back centuries, where they were originally and predominantly used in arid climates. In the UK, the adoption of flat roofs began in earnest during the early 20th century, coinciding with the rise of modernist architecture. This architectural movement emphasised clean lines, functional design, and simplicity, leading to the incorporation of flat roofs in residential and commercial buildings. They are often used in various building types, including garages, storage facilities, extensions, and modern residential homes. Flat roofs are favoured for their simplicity, ease of construction, and ability to accommodate HVAC units and solar panels.
Reasons for Their Design
Flat roofs were designed for a variety of practical and aesthetic reasons:
- Space Utilisation: In urban areas, flat roofs provided additional usable space for terraces, gardens, and recreational areas, maximising the functionality of buildings.
- Modern Aesthetic: The sleek, minimalist look of flat roofs complemented the modernist architectural style, which became increasingly popular in the UK during the 1920s and 1930s.
- Cost-Effectiveness: Flat roofs were generally cheaper to construct than pitched roofs, as they required less material and labour. This made them an attractive option for both residential and commercial properties.
Rise to Prominence
Flat roofs gained prominence in the UK during the post-World War II reconstruction era. The need for quick, affordable housing solutions led to the widespread use of flat roofs in public housing projects and commercial buildings. The brutalist architecture movement, which flourished from the 1950s to the 1970s, further popularised flat roofs. This style embraced raw concrete and geometric forms, often incorporating flat roofs as a defining feature.
Introduction of Flat Roof Paints and Coatings
As the use of flat roofs increased, so did the awareness of their maintenance challenges. Flat roofs are more susceptible to water pooling, temperature fluctuations, and UV damage compared to pitched roofs. These issues necessitated the development of specialised paints and coatings designed to protect and extend the lifespan of flat roofs.
1970s Onwards: The use of flat roof paints and coatings began to gain traction in the UK during the 1970s. These products were developed to address the unique challenges posed by flat roofs, offering solutions to prevent leaks, resist UV degradation, and manage temperature changes.
Key Developments:
- Bituminous Coatings: Early flat roof coatings were primarily bitumen-based, providing a waterproof layer that was relatively easy to apply.
- Elastomeric Paints: The introduction of elastomeric paints marked a significant advancement. These coatings offered greater flexibility and durability, adapting to the expansion and contraction of roofing materials due to temperature changes.
- Acrylic and Silicone Coatings: In more recent years, acrylic and silicone-based coatings have become popular. These coatings provide excellent UV resistance, longevity, and environmental benefits, contributing to the sustainable building practices increasingly favoured in the UK.
Modern Trends and Innovations
Today, flat roofs continue to be a popular choice in the UK, particularly for contemporary architecture and eco-friendly designs. Green roofs, which incorporate vegetation and soil layers on top of flat roofs, have gained popularity for their environmental benefits, such as improved insulation, stormwater management, and biodiversity enhancement.
Additionally, advancements in flat roof paints and coatings have further improved the durability and performance of flat roofs. Reflective coatings, for instance, help reduce energy consumption by reflecting sunlight and reducing heat absorption, making buildings more energy-efficient.
Flat Roof Paints
When applied correctly, our high-performance flat roof paints, coatings, and maintenance products can provide up to 25 years of protection. Our waterproofing membrane, coloured and clear coatings are suitable for a range of roofing materials, including felt, concrete, timber, asphalt, and more. Our range of flat roof paints do not involve any hot works and are thus cold applied. This makes them safer for both the user and the building. Most products are easily applied by brush, roller, or spray, yet they provide optimal protection for your flat roofing – even when applied in low temperatures (product dependent).
Flat Roof Repair Paints
When repairs are needed, Rawlins Paints offers a range of flat roof repair paints. These paints and coatings are ideal for stopping leaks and addressing other weak points in the roof’s surface. For urgent repairs, even in wet weather, we recommend Mathys Fillcoat, which provides a smooth liquid finish on roofs, gutters, chimney stacks, and pipes. It seals small leaks quickly and effectively in all weather conditions.
Explore our selection of Emergency Roof Repair Paints for waterproofing coatings that can bridge cracks and gaps up to 2mm and withstand rainfall almost immediately after application. For more detailed information, read our comprehensive blog post on flat roof repairs.
Flat Roof Waterproofing Paints
Effective maintenance is essential to keep your flat roof waterproof, rust-free, and protected against the elements. We offer a variety of flat roof waterproofing paints that protect surfaces for 5, 10, or even 25 years. Ensure compatibility with your roof's materials by checking product datasheets. Suitable materials include:
- Concrete
- Fibre/cement
- Felt
- Mastic asphalt
- Slate
- Roof tiles
- Lead
- Zinc
A standout product, APOC 576 Premium Silicone Roof Coating, guarantees protection and waterproofing for 20 years and is rain-safe in just 15 minutes! This 100% silicone waterproofing can be applied all year round by brush, roller, or spray, protecting against leaks, ponding water, and severe weather.
For any questions about the best paint for your flat roof project, please contact our technical team for advice.
GRP and Guttering
Glass Reinforced Plastic (GRP) is a popular material for flat roofs due to its durability and waterproof properties. GRP roofs are seamless, reducing the risk of leaks, and are known for their long lifespan. Proper guttering is crucial for flat roofs to ensure effective water drainage, preventing water accumulation and potential damage.
Edging and Seams
Proper edging and seam treatments are essential for flat roofs to prevent water ingress and ensure the longevity of the roof. High-quality edging materials and seam tapes or liquid sealants are used to create watertight seals, especially in vulnerable areas such as corners and joints.
Application Tips
- Preparation: Clean the roof surface thoroughly to remove dirt, debris, and old coatings.
- Weather Conditions: Apply paints in dry conditions with temperatures above 5°C for optimal results.
- Primer: Use a compatible primer if required by the product datasheet.
- Application: Use a brush, roller, or spray for even application. Follow the manufacturer's instructions for coverage rates and drying times.
- Multiple Coats: Some products may require multiple coats for maximum protection. Ensure each coat is fully dry before applying the next.
- Inspection: Regularly inspect the roof for damage and reapply coatings as needed to maintain protection.
Flat Roof Paint FAQs
Can flat roof paints be applied in cold weather?
Yes, many flat roof paints are designed for application in low temperatures, typically above 5°C. Cold-applied paints, such as those containing silicone or elastomeric compounds, remain flexible and cure properly even in cooler conditions. Always check the product datasheet for specific temperature guidelines, as applying below recommended temperatures can affect the curing process and long-term performance.
How do I know if a paint is suitable for my roof material?
The compatibility of a paint with specific roof materials is indicated in the product datasheet and description. Look for mentions of materials such as felt, concrete, timber, asphalt, fibre/cement, and metal surfaces. If unsure, consult the technical team with details about your roof material, and they can recommend the best product based on chemical composition and bonding properties.
Can I apply flat roof paint in wet conditions?
Some specialised products, like Mathys Fillcoat, are formulated for application in wet conditions. These paints contain components that repel water and cure quickly to form a watertight seal. However, for most paints, dry conditions are preferable to ensure proper adhesion and curing. Always verify the product's tolerance for moisture in the datasheet.
How often should I reapply flat roof paint?
Reapplication frequency depends on the product's lifespan and environmental conditions. Premium paints may offer protection for up to 25 years, but regular inspections every 5 years can help identify any wear and tear. High UV exposure, standing water, and physical damage can necessitate more frequent reapplications.
What is the best way to apply flat roof paint?
Application methods vary by product but typically include brush, roller, or spray. Each method has its benefits: brushes for detailed work, rollers for broad coverage, and sprayers for quick application. Ensure even coverage and follow the manufacturer's recommended coverage rates and drying times to avoid under- or over-application.
Do I need a primer before applying flat roof paint?
Primers improve adhesion and provide a uniform surface for the paint. Whether a primer is necessary depends on the substrate and the paint used. For example, porous surfaces like concrete may require a primer, while certain elastomeric paints can be applied directly. Always check the product datasheet for specific primer requirements.
Can flat roof paint help with leaks?
Yes, many flat roof paints are designed to seal and prevent leaks. Elastomeric and silicone-based paints form a continuous, flexible membrane that can bridge small cracks and gaps, providing immediate waterproofing. For severe leaks, products with high elasticity and tensile strength are recommended.
Is flat roof paint environmentally friendly?
Many modern roof paints are formulated to be environmentally friendly, with low VOC (volatile organic compounds) levels and no hazardous chemicals. Silicone and water-based paints are often preferred for their minimal environmental impact. Check the product datasheet for specific environmental certifications and compliance.
What should I do if my roof has standing water?
Standing water can lead to accelerated degradation of roofing materials. First, ensure proper drainage to prevent water accumulation. Use paints specifically designed for ponding water, such as 100% silicone-based coatings. These products maintain their integrity and adhesion even when submerged.
How long does flat roof paint take to dry?
Drying times vary based on the paint type and environmental conditions. Silicone-based paints can be rain-safe within 15 minutes, while others may take several hours to a day. Full curing, which provides maximum durability, can take several days. Always follow the manufacturer's instructions for drying and curing times.
Can flat roof paint be used on pitched roofs?
While primarily designed for flat roofs, many flat roof paints can also be used on pitched roofs. The main consideration is the paint's ability to handle water runoff and adhesion on inclined surfaces. Verify the product’s suitability by checking the datasheet or consulting the technical team.
What is the lifespan of flat roof paint?
The lifespan of flat roof paint can range from 5 to 25 years, depending on the product and environmental conditions. High-quality silicone and elastomeric paints tend to offer the longest protection. Regular maintenance and inspections can help extend the lifespan of the coating.
How do I maintain a painted flat roof?
Maintenance includes regular inspections for damage, cleaning debris, and ensuring proper drainage. Address any cracks or peeling paint promptly. Reapply the paint as needed, particularly in areas exposed to intense sunlight or standing water.
Are there paints that can be applied in emergency situations?
Yes, emergency repair paints like Mathys Fillcoat are designed for rapid application and immediate waterproofing, even in adverse weather. These products are often solvent-based, allowing them to cure quickly and provide a temporary solution until more permanent repairs can be made.
Can I use flat roof paint on other surfaces?
Many flat roof paints are versatile and can be used on gutters, pipes, and other building components. Ensure the product's compatibility with the surface by checking the datasheet. Products designed for multi-surface applications usually have enhanced adhesion properties.
What safety precautions should I take when applying flat roof paint?
Follow all safety guidelines provided by the manufacturer. This includes wearing protective clothing, gloves, goggles, and ensuring adequate ventilation when using solvent-based products. Additionally, use fall protection if working on elevated surfaces and follow proper ladder safety protocols.
Can flat roof paint be used on new roofs?
Yes, many flat roof paints are suitable for new roofs. It’s essential to ensure the new roof is clean, dry, and free from contaminants. Some new roofing materials may require a curing period before applying paint. Verify with the manufacturer for any specific preparation requirements.
What if the paint starts to peel or crack?
Peeling or cracking can result from improper surface preparation, application in adverse conditions, or the natural ageing of the paint. Inspect the affected area for underlying issues, clean and prepare the surface again, and reapply the paint according to the manufacturer’s instructions.
Is professional application required for flat roof paint?
While many products are designed for DIY application, professional application can ensure optimal results, especially for large or complex roofs. Professionals have the experience to address potential issues and apply the paint evenly and efficiently.
How can I contact your technical team for advice?
You can contact our technical team via phone, email, or through our website. Provide details about your project, including the type of roof, existing conditions, and any specific concerns. Our team can offer expert advice tailored to your needs, ensuring you select the best product for your flat roof.
For more detailed and personalised assistance, don't hesitate to reach out to us. We're here to help you protect and maintain your flat roof with the best products and advice available.
If you have a question which has not been covered in these FAQs, or have a specific project requirement, please use the search option on the site, this category’s sidebar filter or sub-category links, or contact our Technical and Product Support Team by phone, email or live chat.
What Rawlins’ Customers Say:
Don’t just take our Technical Support Teams’ words for it, here’s what our customers have to say about flat roof paint they have purchased from our store:
The information provided above is a basic overview and is intended as general information only. It is not advice, and is given without warranty. You should always refer to the relevant data sheets and our Technical Team prior to purchase or use of any products.