Flat RoofingContractors

Flat roof systems

GRP fibreglass roofing in Wakefield

Fibreglass roofing in Wakefield: a new timber deck, moulded trims, a resin and glass-mat laminate and a coloured topcoat, built up on the roof to form one hard skin. We strip the old covering, add insulation where the room below is heated, and plan laminating around the weather so the resin cures properly.

Finished grey GRP fibreglass flat roof with moulded trims on a single-storey extensionComputer-generated example image

Wakefield at a glance

Postcode districts
WF1, WF2, WF4, WF5, WF6
Population
about 109,766 (GeoNames)
Council area
Wakefield Council
Building approval
Wakefield Council building control, or a registered building control approver
Nearest main town
Leeds, about 8 miles
Guide price region
Yorkshire and the Humber (−5% on West Midlands rates)

Why choose GRP fibreglass roofing in Wakefield?

For a garage or extension in Wakefield that doubles as a step-out space for window cleaning, GRP gives a firmer footing than a rubber membrane. With an anti-slip topcoat it handles light, occasional use, though a full terrace needs its own specification and, in many cases, planning permission.

Wakefield's flat roofs are mostly on lock-up garage blocks on estates, with plenty on bungalows with flat-roofed side extensions and dormers too. England averages roughly 870 mm of rain a year; the Pennine side of Yorkshire is wetter and windier than the east, so we specify for the site rather than the county.

How much does a GRP fibreglass roof cost in Wakefield?

At Yorkshire and the Humber guide rates, a 20 m² extension roof in GRP with a new deck and insulation comes to £2,850–£5,100 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Extension (20 m²), GRP, new deck + insulation£2,850–£5,100
Dormer (8 m²), GRP, scaffold£1,350–£2,500
Single garage (18 m²), GRP fibreglass£1,700–£3,100
Single garage (18 m²), EPDM rubber£1,500–£2,650
Extension (20 m²), EPDM, new deck + insulation£2,650–£4,650

Why do GRP roofs crack, and can weather affect the installation?

GRP usually cracks where the structure moves and the laminate cannot, typically along board joints, at the junction with trims, or where a roof meets a wall. Weather during laying is the other big factor, because resin cures by chemical reaction and that reaction is sensitive to temperature and moisture.

How we reduce the risk of cracking:

  • boards fixed at close centres so the deck does not flex;
  • joints taped and reinforced with an extra strip of mat;
  • wall junctions finished with a separate trim or flashing, not laminated hard into the masonry;
  • roofs over a certain size divided with movement details where the system calls for them.

And how weather is managed:

  • no laminating in rain, on a damp deck, or when dew or frost is likely before the resin sets;
  • catalyst levels adjusted for the temperature, so resin neither stays tacky on a cold day nor kicks too fast in summer heat;
  • the roof sheeted over if a shower threatens a fresh laminate.

That is why a GRP date can move at short notice. A day's delay costs far less than a laminate that never cures properly.

What's included?

  • Removal of the old covering and disposal of waste
  • Resin and glass-mat laminate with taped and reinforced joints
  • Warm-roof insulation and vapour control layer where the room below is heated
  • Moulded GRP trims, kerbs and upstands

Building regulations in England

Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.

Which nearby areas do we also cover?

GRP fibreglass roofing in Wakefield: questions

Do you cover Wakefield?

Yes. Wakefield is part of our West Yorkshire coverage, including postcode districts WF1, WF2, WF4, WF5, WF6. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.

Who checks building regulations for a flat roof in Wakefield?

Where the work needs approval it goes to Wakefield Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.

How much does a GRP fibreglass roof cost in Wakefield?

£2,850–£5,100 for a 20 m² extension roof in GRP with a new deck and insulation, at Yorkshire and the Humber guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Can you walk on a GRP roof?

Yes, a correctly laid GRP roof takes occasional foot traffic, such as cleaning windows or maintaining plant. For a regular walkway or terrace, an anti-slip topcoat and a suitable specification are needed.

What colours does a GRP roof come in?

Topcoats are typically available in greys, greens, black and some other shades. Lighter colours absorb less heat, and an anti-slip finish can be added where people will walk on the roof.

Other flat roof work in Wakefield

GRP fibreglass roofing in Wakefield: get a fixed price

Free survey and a written fixed quote for replacement and new roofs. No obligation.

Call usGet a guide price