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Flat roof systems

Single-ply membrane roofing in Fareham

Single-ply roofing in Fareham means one welded layer of PVC, TPO or FPO membrane over insulation, fixed to suit the deck and the exposure of the site. It is light, quick to lay on larger roofs and flame-free, with seams fused by hot air rather than a torch.

Light grey single-ply membrane roof with welded seams, outlets and plant on a commercial buildingComputer-generated example image

Fareham at a glance

Postcode districts
PO16
Population
about 42,210 (GeoNames)
Council area
Fareham Borough Council
Building approval
Fareham Borough Council building control, or a registered building control approver
Nearest main town
Gosport, about 4 miles
Guide price region
South East (+10% on West Midlands rates)

Why choose single-ply roofing in Fareham?

If a flat roof in Fareham has poor falls and ponding, a single-ply re-roof with tapered insulation can correct both problems at once. The tapered boards build the fall into the insulation, and the membrane is laid over the top, with outlets set at the new low points.

In a town like Fareham, flat roofs are commonly found on newer estates where the first extension roofs are now being replaced or shops with flat-roofed rear stores below flats. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain.

How much does a single-ply roof cost in Fareham?

At South East guide rates, a 100 m² commercial roof in single-ply with insulation comes to £14,550–£23,950 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Commercial roof (100 m²), single-ply + insulation£14,550–£23,950
Single garage (18 m²), single-ply£2,250–£3,650
Single garage (18 m²), EPDM rubber£1,750–£3,100
Extension (20 m²), EPDM, new deck + insulation£3,100–£5,350

Is single-ply the right system for my roof?

Single-ply is usually the right system for medium and large flat roofs, such as shops, offices, units, surgeries, clubs and blocks, where speed of installation, light weight and long life matter. On a small domestic roof it can work well, though it is not always the most economical choice.

In its favour: lightweight; quick to lay over large areas; flame-free, as the seams are welded with hot air; long typical life; welded details at rooflights and plant; lighter-coloured membranes reflect more sunlight.

Against it: only one waterproof layer, so welding quality is critical; can be punctured by foot traffic or dropped tools without walkway protection; PVC needs separating from bitumen; repairs need compatible material and welding equipment.

For a small garage or extension, EPDM is often simpler. Where people walk regularly, GRP or a liquid system may be tougher. A multi-layer torch-on felt roof gives built-in redundancy, and on older buildings mastic asphalt may be the original material. Our commercial flat roofing page covers larger jobs.

What's included?

  • Strip-out or preparation of the existing roof, with waste removed
  • PVC, TPO or FPO membrane, mechanically fixed, adhered or ballasted
  • Edge protection on every job and walkway protection around plant
  • Welded details at upstands, outlets, rooflight kerbs and edge trims

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?

Single-ply membrane roofing in Fareham: questions

Do you cover Fareham?

Yes. Fareham is part of our Hampshire coverage, including postcode districts PO16. 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 Fareham?

Where the work needs approval it goes to Fareham Borough 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 single-ply roof cost in Fareham?

£14,550–£23,950 for a 100 m² commercial roof in single-ply with insulation, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Can single-ply roofing be laid over an existing roof?

Sometimes, if the existing roof and deck are dry and sound, often with a separation layer or new insulation on top. Wet insulation or a damaged deck means stripping first.

How long does a commercial single-ply roof take?

A roof of around 100 m² typically takes several days, depending on strip-out, insulation, details and weather. Work is phased so the building stays weathertight and occupied areas are protected.

Other flat roof work in Fareham

Single-ply membrane roofing in Fareham: get a fixed price

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

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