Pagham's post-war bungalow stock is approaching the end of its concrete tile design life. Nail sickness is now widespread across properties built in the 1960s and 70s, and the Pagham Harbour microclimate accelerates both tile surface degradation and metal fixings corrosion compared to similar stock further inland.
Pagham's post-war bungalow stock is approaching the end of its concrete tile design life. Nail sickness is now widespread across properties built in the 1960s and 70s, and the Pagham Harbour microclimate accelerates both tile surface degradation and metal fixings corrosion compared to similar stock further inland.
GRP fibreglass is the recommended system for Pagham flat roofs. The harbour microclimate and coastal UV make GRP's superior performance over felt important. EPDM for larger areas. No felt specified on any Pagham property.
Flat roofing work in Pagham covers bungalow extensions throughout Pagham and Nyetimber — GRP specification recommended for coastal UV and salt air exposure. All flat roof work is surveyed before quoting — falls, drainage points, upstand details and any existing structural issues are assessed as part of the free survey.
Free quote — no call-out fee — Pagham and surrounding area
📞 01243 278085GRP fibreglass provides the longest lifespan and the most seamless finish; it is our default recommendation for most Pagham properties. EPDM rubber is cost-effective for larger areas and equally durable. Felt is not recommended for any Pagham property — the lifespan is too short to justify the cost, in Pagham's harbour microclimate.
"Garage flat roof was leaking after only twelve years on the old felt. GRP conversion — not a drop since. Should have done it years ago."
"Extension flat roof done in GRP. Neat finish, no mess left. They explained every step of the process before starting."
"Had EPDM on the large back extension. Brilliant product, very professional installation. Highly recommend."
Pagham harbour nature reserve borders the village on two sides, creating a coastal microclimate with high ambient moisture and significant exposure to south-westerly weather systems tracking up the harbour entrance. For flat roofing in Pagham this means the harbour-edge properties in Pagham see lead deterioration rates similar to Bosham — the combination of tidal moisture and salt aerosol from the harbour entrance makes standard-spec lead work insufficient. The village has a mix of period properties around the church and substantial holiday and residential development from the 1960s onwards, with the post-war stock now reaching the nail sickness threshold. Patination oil on all new lead and stainless fixings throughout are our standard specification for pagham harbour-edge properties — these are not premium options but the correct baseline specification.
GRP fibreglass is the recommended system for Pagham flat roofs. The harbour microclimate and coastal UV make GRP's superior performance over felt important. EPDM for larger areas. No felt specified on any Pagham property.
A typical garage flat roof in Pagham costs £840–£1,520. A rear extension flat roof is typically £1,680–£4,700 depending on size and system. We quote by the square metre after a free survey.
GRP fibreglass lasts 25 to 40 years in Pagham's conditions. EPDM rubber lasts 30 to 50 years. Traditional felt lasts 8 to 12 years at most in Pagham's harbour microclimate — we do not recommend felt replacement for any Pagham property.
Yes — felt to GRP conversion is a standard job for us. We remove the existing felt and boarding, install new treated decking, apply the GRP system and finish with a UV-stable coloured gelcoat. The improvement in lifespan is significant and the upfront cost difference is recovered within a few years.
Blistering, cracking, pooling water after rain, or felt that has become soft and spongy to walk on are all signs a replacement is needed rather than a patch repair. If a felt flat roof is over 12 years old in Pagham's coastal climate and showing any of these signs, replacement with GRP or EPDM is almost always the more cost-effective long-term decision.
Replacing a flat roof like-for-like on a house extension or outbuilding is generally permitted development in Pagham. Changing the height or footprint, or work on a listed building or in a conservation area, may require consent. We advise at the survey stage.
Correct drainage is the single most important factor in flat roof longevity. All our flat roof installations include assessment of falls, outlet positioning and gutter connections before work starts. We correct any drainage deficiencies as part of the installation — a new flat roof laid to inadequate falls will fail early regardless of the material quality.
Every flat roof survey covers: the existing deck condition (whether the existing decking boards are sound or require replacement), the current falls (whether adequate drainage exists or whether tapered insulation is needed to correct the falls), the upstand heights (whether the covering can be taken up to the required minimum height at edges and abutments), and the outlet position and sizing. In Pagham, where harbour approach properties with coastal exposure, we also assess whether coastal UV intensity or harbour moisture exposure affects the system recommendation. A flat roof that drains correctly and has proper upstand details lasts decades longer than one where these fundamentals were not addressed at installation.
GRP fibreglass is applied as a liquid laminate that cures to a rigid seamless surface. We apply two layers of chopped strand mat saturated with resin, followed by the coloured gelcoat finish. The entire surface is seamless — no joints to open, no laps to fail. Upstands are formed to the correct height and radius at all edges. Outlets are GRP-lined. The gelcoat provides UV protection that significantly outlasts felt surface treatment in Chichester's coastal UV environment. Installation requires temperatures above 5°C — we plan flat roof work around weather forecasts to ensure the correct curing conditions.
A standard single-car garage flat roof in GRP typically costs £900 to £1,800 in Pagham. Rear extension flat roofs up to 25m² cost £1,800 to £4,000. Larger areas of 25 to 60m² run £3,500 to £7,500. These prices include deck inspection, any necessary deck replacement, falls correction where needed, full GRP lamination and gelcoat finish. EPDM rubber costs approximately 10 to 15 per cent less than GRP on the same area with comparable performance over the long term.
Honest pricing from a local Chichester roofer. Call now or request a quote online.
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