Understand the GRP system
A GRP roof is formed from reinforcement and resin with a specified finish. Its performance depends on the complete installation, including the deck and junctions. Compare the proposed system and its requirements rather than treating every fibreglass covering as identical.
Check the roof and deck requirements
The deck must suit the chosen system, including how joints and movement are handled. Roof geometry, penetrations and the condition of the supporting structure matter. A new covering over an unsuitable base leaves a basic project question unanswered.
Plan junctions and drainage details
Trims, wall abutments, outlets and roof openings need compatible details. The design should move water towards its discharge points and account for transitions between materials. Include these elements when comparing the scope of quotations.
Installation conditions and scope
Preparation and conditions during application are important to resin-based work. Product requirements determine when and how installation can proceed. Ask how weather, substrate condition and protection of the work will be managed, without assuming a fixed completion time.
Compare choices and request a quote
For an existing fibreglass roof with local damage, explore repair before deciding on replacement. For a new system, compare alternatives against the same build-up and details. Provide drawings or safe photographs to make that comparison specific to your roof.
Your questions, answered.
What deck does a GRP roof need?+
A deck compatible with the chosen GRP specification; the actual product requirements should guide the proposal.
Can GRP be installed in any weather?+
No. Application conditions must meet the selected system requirements.
Can an existing fibreglass roof be repaired rather than replaced?+
A compatible repair may be possible, depending on the cause, extent and surrounding roof condition.
