Installation of GRP fibreglass flat roofing systems for extensions, garages, and bay roofs. Provides a seamless, maintenance-free waterproof covering with 25-year lifespan.
Typical cost
£1,800 — £3,500
Typical duration
2-3 days
Scope type
flexible
Typical tasks
Prepare and board deck to falls
Apply GRP laminate base coat with glass tissue
Apply GRP topcoat in agreed colour
Form upstands to walls and abutments
Fit trims and outlets and test drainage
Extras & additional works
Based on a standard 20m² flat roof. Costs may increase if additional structural work or complex drainage systems are required.
Common questions Stainesai
GRP fibreglass roofing is a durable, waterproof roofing solution made from glass-reinforced plastic, ideal for flat roofs.
Price can be affected by roof size, complexity of the installation, access difficulty, and any additional structural work needed.
GRP fibreglass roofing can last over 20 years with proper maintenance, offering a long-term waterproof solution.
Yes, building regulations apply to GRP fibreglass roofing, particularly for flat roofs on extensions, which require approval. Insulation and drainage are also important considerations. Always confirm with your roofer before work begins.
The roof deck must be clean, dry, and properly boarded to falls before applying the GRP laminate and topcoat. Always confirm with your tradesperson before work begins.
Ready to post a grp fibreglass roofing job?
Describe what you need. Stainesai structures it into a proper scope. Your first job post is free.