Collection: Flat Roof Repair

Frequently Asked Questions

What is the best product for repairing a leaking flat roof?
The right product depends on the roofing material, the location of the leak and the condition of the existing surface. Liquid waterproofing products such as DT1, Hydrosil and Aquashield may be suitable for coating and sealing larger areas, while GRP repair kits, Restec RESKIT and flashing tape can be useful for localised repairs. Always check the individual product instructions before use.

Can I repair a flat roof myself?
Many minor flat roof repairs can be completed by a competent DIY user. However, larger repairs, structural damage or leaks that cannot be easily located may require an experienced roofing contractor. Always follow the manufacturer’s application and safety guidance.

Can these products be used for emergency roof repairs?
Yes, several products within this category are suitable for quick or emergency flat roof repairs. Suitability will depend on the roof surface, weather conditions and the type of damage, so check the relevant product information before application.

Can I repair a flat roof while it is wet?
Some roof repair products can be applied to damp surfaces, while others require a completely clean and dry surface. Always refer to the manufacturer’s instructions, as applying a product in unsuitable conditions may affect adhesion and performance.

Which flat roof materials can these repair products be used on?
Depending on the selected product, suitable surfaces may include roofing felt, asphalt, GRP fibreglass, concrete, metal and previously coated roofs. Compatibility varies, so always confirm that the product is suitable for your particular roof surface.

Do I need to prepare the roof before applying a repair product?
Yes. Proper preparation is important for a reliable repair. The surface should normally be cleaned and any loose material, dirt, moss, grease or debris removed. Some systems may also require the area to be dry or primed before application.

What can I use to repair cracks, joints and small holes?
GRP fibreglass repair kits and Restec RESKIT products can be suitable for localised damage, depending on the existing roof material. Aluminium flashing tape may also be used for sealing certain cracks, joints, edges and penetrations where compatible.

What is aluminium flashband flashing tape used for?
Aluminium flashing tape is a flexible, self-adhesive waterproofing product commonly used around roof joints, edges, pipes, vents and other penetrations. The surface must be properly prepared to achieve a secure bond.

Can I coat the entire flat roof rather than patching one area?
Yes, liquid waterproofing products can provide a more comprehensive solution where a roof has several vulnerable areas or a generally weathered surface. The roof must still be structurally sound, and the selected coating must be compatible with the existing substrate.

How do I deal with standing water before starting a repair?
Standing or ponding water should be removed wherever possible before beginning work. Eurofast H2O Absorbent Granules can help form a temporary water barrier and create a dry working area during roof repair or maintenance.

Will a repair product permanently fix my leaking roof?
This depends on the cause of the leak and the condition of the roof. A correctly selected and applied repair system can provide a durable solution, but recurring leaks, saturated insulation, poor drainage or structural movement may require more extensive remedial work.

How much flat roof repair product will I need?
Coverage varies between products and may be affected by the surface condition, application method and number of coats required. Measure the repair area carefully and check the stated coverage information on the individual product page.

Can flat roof repair products be applied during cold weather?
Each product has its own minimum and maximum application temperatures. Cold weather, rain, frost and high humidity can affect curing and adhesion, so always check the forecast and follow the manufacturer’s instructions.

How do I choose the correct flat roof repair product?
Consider the existing roof material, the size and type of damage, surface conditions and whether you need a localised patch or a complete coating. If you need advice on which product to choose or guidance on how to use it, please contact our team.