A leaking flat roof is every homeowner’s nightmare, and invariably comes at the wrong time.
Leaking felt flat roof’s are the most common, and consequently the most likely to need repair.
We look at what’s involved with repairs, and discover a cost effective solution .
How to repair a felt flat roof
Traditional felt flat roofs are usually constructed of multiple layers of felt, applied with hot bitumen. This isn’t a suitable DIY job for most. Normally, repair would involve stripping back the affected area, and applying multiple new layers. Alternatively, over-bonding new layers onto the existing surface is sometimes an option.
But the good news is, if damage isn’t extensive, there is a cost effective solution, in the form of roof repair kits.
How much does a flat roof cost to repair ?
A felt flat roof repair can be expensive if the damage is extensive, with costs running well into hundreds of pounds. Professional felt roofing professionals with torch-on roofing equipment will undoubtedly charge for a minimum day's work, and with materials you could be looking at over £500.
However, for isolated and relatively minor damage - such as repairing tears, holes or blisters – it is possible for the competent DIYer to complete repairs for under £60, using Restec's new Stormfix Roof Repair Kit.
Introducing Stormfix Flat Roof Repair Kits
Stormfix is an advanced flat roof repair solution from Restec, designed for both emergency and long-term roofing repairs.
Incorporating expertise developed over 40 years in the liquid waterproofing industry, each Stormfix kit combines cutting-edge resin technology with fiber reinforcement. These all-in-one kits are engineered to provide rapid, durable, and professional-grade waterproof protection, ensuring buildings stay secure and dry in even the harshest weather conditions.
Every Stormfix kit is supplied complete with:
- Stormfix Resin
- Catalyst Paste
- Gloves
- Brush
- Mixing Stick
This makes the kit a convenient, ready-to-use option for contractors and property owners seeking reliable repairs with minimal effort.
Features & Benefits of Stormfix
Stormfix delivers several core benefits that set it apart as a professional-grade roof repair solution:
- Immediate Waterproof Protection: One coat delivers instant, long-lasting waterproofing, minimising downtime and risk from sudden weather.
- Fibre-Reinforced Strength: Built-in fibre reinforcement improves structural integrity and impact resistance, making Stormfix suitable for demanding environments.
- Single Coat Application: Only one coat is required, streamlining installation and reducing labour time.
- Flexible Yet Tough: Utilises Restec's trusted resin technology to remain flexible and accommodate roof movement while maintaining robustness.
- All-in-One Convenience: Supplied with all necessary accessories and tools for repair, allowing quick, hassle-free application without additional purchases.
- Versatile Compatibility: Formulated for use on a broad range of common flat roofing materials, ensuring wide applicability.
Suitable Substrates
Stormfix is designed to adhere to and perform on the most common types of flat roof surfaces, making it a truly universal solution. Suitable substrates include:
- Roofing felt
- Asphalt
- GRP (Glass Reinforced Plastic/Fibreglass)
- EPDM (Ethylene Propylene Diene Monomer rubber)
- Many other flat roofing materials
This adaptability makes it an ideal choice for both urgent job site repairs and planned maintenance across different construction types.
Flat Roof Repair Surface Preparation
Ensuring proper surface preparation is vital for the performance and longevity of any flat roof repair. For Stormfix, these steps are recommended before application:
Clean the Surface: Remove any debris, dust, grease, moss, lichen, or loose material from the repair area. The substrate should be dry, sound, and free from contaminants that might inhibit adhesion.
Assess Substrate Condition: Check that the area is structurally stable and capable of taking the repair. Any underlying faults such as rot or delamination must be rectified prior to application.
Dry the Surface: Moisture presence can affect performance; ensure the roof is fully dry before applying Stormfix. Avoid application in wet or freezing conditions.
Priming (if needed): For certain substrates, a specialist primer may be recommended. Always consult the application manual or conduct an adhesion test if uncertain.
Surface Application
Applying Stormfix roof repair kits is straightforward and designed for rapid completion:
Mixing: Combine the Stormfix Resin with the supplied Catalyst Paste thoroughly according to the instructions. Accurate mixing is crucial to ensure correct curing and performance.
Application: Apply the mixed compound directly to the prepared area using the supplied brush. Only one coat is required for full waterproofing and reinforcement.
Coverage: Each kit covers approximately 0.5m². For larger repairs, multiple kits or bulk options may be necessary.
Finishing: Slate granules or chippings can be applied immediately to the wet resin for additional protection or a decorative finish, as required.
Cure Time: The system is engineered for quick installation with immediate waterproof protection upon cure completion.
Wrapping Up
Get high-performance, lasting repairs with confidence in the protection your roof will receive. Restec Stormfix Flat Roof Repair Kits are now available to purchase here.
