Dulwich Roofing · Homeowner guide
Is GRP Roofing Right for Your Property? Pros and Cons Explained
GRP offers a rigid reinforced finish that can be useful on some flat roofs. Its limitations include the need for compatible preparation and careful accommodation of details and movement. It should be compared with other viable systems for the same roof.
Balance the advantages and constraints
- A laminated finish can reduce seams across the main roof field.
- Edges, corners and penetrations still require precise workmanship.
- Deck condition and suitable application weather affect installation.
If the roof will be walked on, ask for a purpose-designed protected or trafficable system rather than assuming ordinary GRP is enough.
Preparation and handover matter
Ask the installer to identify the GRP system, its compatible substrate and the proposed treatment of deck joints, corners and trims. Suitable conditions are needed during application. At completion, retain the product details and photographs, and establish how the roof should be maintained and protected if another contractor needs access.