Flat RoofingContractors

Flat roof systems

Liquid-applied roofing in Blyth

Liquid membranes give Blyth property owners a jointless, cold-applied roof without laps or separate flashings. They are especially useful around pipes, rooflights and tight corners where sheet systems need lots of cutting. If the roof below is wet or rotten, we say so and quote for the right fix instead.

Grey liquid waterproofing and reinforcement fleece rolled around a vent pipe on a flat roofComputer-generated example image

Blyth at a glance

Postcode districts
NE23, NE24
Population
about 37,339 (GeoNames)
Council area
Northumberland County Council
Building approval
Northumberland County Council building control, or a registered building control approver
Nearest main town
South Shields, about 9 miles
Guide price region
North East (−7% on West Midlands rates)

Why choose a liquid-applied roof in Blyth?

Liquid systems suit balconies and walkways in Blyth because they form neatly at door thresholds, railings and drains, and some products are designed to take foot traffic. Converting a roof into a new terrace is a different matter, and usually needs planning permission first.

In and around Blyth, flat roofs are typically found on 1930s semis with flat-roofed garages and kitchen extensions, and on terraced streets with flat-roofed rear kitchens and bathrooms. England averages roughly 870 mm of rain a year; the North East is drier than the west but cold and windy near the coast, so wind uplift and freeze-thaw are in the specification.

How much does a liquid-applied roof cost in Blyth?

For Blyth we use North East rates: £1,900–£3,000 is the guide for a typical 18 m² garage roof in a liquid-applied system, VAT included. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), liquid-applied£1,900–£3,000
Balcony (12 m²), liquid-applied, scaffold£1,750–£3,000
Single garage (18 m²), EPDM rubber£1,500–£2,600
Extension (20 m²), EPDM, new deck + insulation£2,600–£4,550

Can a liquid roof go over my existing roof, and what preparation is needed?

Yes, if the existing roof is dry, firmly bonded and sitting on a sound deck. A liquid membrane is only as good as what lies beneath it, so we test the old roof before agreeing to overlay it.

At survey we check for:

  • Trapped moisture: soft spots, blisters or wet insulation mean the roof should be stripped, because water sealed in will cause new blisters and decay.
  • Deck condition: any sponginess or deflection needs repair first.
  • Adhesion: on felt and asphalt, loose areas are cut out and patched, and the existing surface must take the primer properly.
  • Falls and ponding: a coating follows the roof as it is. If water ponds now, it will pond on the new surface too unless the falls are corrected.

Preparation then follows: loose chippings removed, the surface cleaned and left to dry, blisters cut back and repaired, cracks filled, and the right primer applied. On older felt, mineral surfaces may need extra cleaning to give a good bond. Where the tests fail, we say so plainly and quote for a strip and re-roof. Read more on ponding water.

What's included?

  • Fleece-reinforced liquid membrane applied to the specified thickness
  • Top coat with optional anti-slip finish, and guarantee registration where available
  • Survey of the existing roof, including moisture and adhesion checks
  • Detailing of upstands, outlets, pipes and corners before the main area

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?

Liquid-applied roofing in Blyth: questions

Do you cover Blyth?

Yes. Blyth is part of our Northumberland coverage, including postcode districts NE23, NE24. 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 Blyth?

Where the work needs approval it goes to Northumberland County 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 liquid-applied roof cost in Blyth?

£1,900–£3,000 for a typical 18 m² garage roof in a liquid-applied system, at North East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

How long does a liquid roof take to cure?

That depends on the product and the weather. Some systems are rain-resistant within an hour or so, others take longer, and full cure can take a day or more in cool weather.

Is liquid roofing good for balconies?

Often, yes. It forms neatly around railings, door thresholds and drains, and some systems take foot traffic. A new balcony or roof terrace generally needs planning permission, so check before converting a roof.

Other flat roof work in Blyth

Liquid-applied roofing in Blyth: get a fixed price

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

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