Remove the old covering
Establish the condition, priorities and access before work is specified.

A seamless fibreglass roof finish for garages, extensions and other flat roofs.
GRP is installed over a prepared roof deck using resin, glass-fibre matting and a protective top coat. The completed surface is seamless and shaped around the roof edges, outlets and adjoining details.
Photographs and films of JDL’s fibreglass flat roofing, including finished surfaces, perimeter trims and adjoining roof details.
Showing 6 of 16 photos and videos

Condition, roof shape, exposure, drainage, access and the surrounding details all affect the work required. JDL inspects those factors before confirming the scope.
The detailed method follows the agreed specification. These are the main stages.
Establish the condition, priorities and access before work is specified.
Confirm the system, materials and practical arrangements in writing.
Complete the agreed work methodically and keep the property protected.
Inspect the completed work and confirm the applicable terms.
Your written terms
25-year guarantee on eligible GRP installations.
The written quotation confirms the system, included work and the complete guarantee terms for the specified project.
Read the guarantee informationThe roof deck is prepared before resin and glass-fibre matting form the GRP laminate. A protective top coat completes the surface, with the edges, outlets and adjoining details included.
The completed GRP covering is seamless. It is formed around the roof shape, edges and outlets over a prepared deck.
Yes. Ground-level or safely taken photographs can provide useful context. A final specification may still require an on-site roof survey.
After the site visit, JDL sends your written quotation within 48 hours. Most are sent within 24 hours.