Flat RoofingContractors

Flat roof systems

Single-ply membrane roofing in Peacehaven

If you manage or own a commercial building in Peacehaven, single-ply is often the most practical way to replace a large flat roof. We phase the work so the building stays weathertight, protect occupied areas, and add insulation and tapered falls where the roof needs them. Guide prices are online.

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

Peacehaven at a glance

Postcode districts
BN10
Population
about 18,579 (GeoNames)
Council area
Lewes District Council
Building approval
Lewes District Council building control, or a registered building control approver
Nearest main town
Brighton, about 6 miles
Guide price region
South East (+10% on West Midlands rates)

Why choose single-ply roofing in Peacehaven?

If a flat roof in Peacehaven 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 and around Peacehaven, flat roofs are typically found on shops with flat-roofed rear stores below flats, and on 1930s semis with flat-roofed garages and kitchen extensions. 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 Peacehaven?

For Peacehaven we use South East rates: £14,550–£23,950 is the guide for a 100 m² commercial roof in single-ply with insulation, VAT included. 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

Should a single-ply roof be mechanically fixed or adhered, and how are the seams welded?

Most commercial single-ply roofs are mechanically fixed, while adhered systems suit decks that cannot take fixings or roofs where a smooth finish is wanted. The choice depends on the deck, the wind exposure of the site and the manufacturer's specification.

MethodHow it worksTypical use
Mechanically fixedFasteners and plates hold the membrane through the insulation into the deck, hidden under the lap of the next sheetMetal, timber and concrete decks on commercial roofs
AdheredMembrane bonded to the insulation or deck with adhesiveDomestic roofs, roofs where fixings are unsuitable
BallastedLoose-laid and held down by paving, gravel or a green roofInverted roofs, terraces, green roofs

Fixing patterns are worked out for the site, with more fasteners at corners and perimeters, where wind uplift is strongest.

Seams are welded by hot-air machines and hand tools that melt the overlapping edges so they fuse. Each seam is then probed along its length to find any gaps, and test welds are made at the start of the day to set the machine for the weather. On commercial jobs we also check that walkways protect the membrane around plant.

What's included?

  • Vapour control layer and warm-roof or tapered insulation as specified
  • PVC, TPO or FPO membrane, mechanically fixed, adhered or ballasted
  • Edge protection on every job and walkway protection around plant
  • Strip-out or preparation of the existing roof, with waste removed

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 Peacehaven: questions

Do you cover Peacehaven?

Yes. Peacehaven is part of our East Sussex coverage, including postcode districts BN10. 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 Peacehaven?

Where the work needs approval it goes to Lewes District 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 Peacehaven?

£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 a single-ply roof be repaired?

Yes. A compatible patch is cleaned and hot-air welded over the damage. Older membranes may need extra cleaning before they weld properly, which the team checks on site.

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 Peacehaven

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

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

Call usGet a guide price