GRP extension roof — water ingress above kitchen
Problem → diagnosis → GRP replacement with corrected upstands; Bristol area case study.
Materials: grp, roofline · Area: Bristol
Problem
Homeowner reported intermittent staining on a kitchen ceiling below a relatively new single-storey extension flat roof. Two prior “reseal” attempts failed.
Solution
Electronic and thermal survey isolated membrane lap failure and inadequate upstand height at the abutment. Specification: strip to deck where compromised, new OSB where delaminated, GRP system with formed upstands and drip edge.
Materials
- GRP laminate with topcoat matched to existing grey
- Roofline trim and vented fascia detail for continuity with main house