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Flat roof systems

Torch-on felt roofing in Rugby

Torch-on felt in Rugby is a layered roof: an underlay, sometimes an intermediate sheet, and a mineral-faced cap sheet, each heat-bonded to the one below. It is generally the most economical of the main systems and suits garages, extensions and larger roofs on blocks and shops alike.

Roofer torching a slate-grey mineral cap sheet on a commercial flat roof behind edge protectionComputer-generated example image

Rugby at a glance

Postcode districts
CV21, CV22
Population
about 78,117 (GeoNames)
Council area
Rugby Borough Council
Building approval
Rugby Borough Council building control, or a registered building control approver
Nearest main town
Coventry, about 11 miles
Guide price region
West Midlands (baseline rates)

Why choose torch-on felt roofing in Rugby?

For a commercial roof in Rugby, such as a shop, surgery or club, torch-on felt offers a hard-wearing mineral finish that takes occasional maintenance traffic. Phased work keeps part of the building weathertight while the rest is re-roofed, so the business can usually keep trading.

In and around Rugby, flat roofs are typically found on newer estates where the first extension roofs are now being replaced, and on low-rise post-war blocks of flats. England averages roughly 870 mm of rain a year and the West Midlands sits close to that, so falls and outlets are the difference between a roof that drains and one that ponds.

How much does a torch-on felt roof cost in Rugby?

Guide price in Rugby: £1,500–£2,600 for a typical 18 m² garage roof in torch-on felt, including VAT at West Midlands rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), torch-on felt£1,500–£2,600
Extension (20 m²), felt, new deck + insulation£2,700–£4,700
Block of flats (150 m²), felt + insulation + scaffold£15,550–£27,200
Single garage (18 m²), EPDM rubber£1,600–£2,800
Extension (20 m²), EPDM, new deck + insulation£2,800–£4,900

Does replacing a felt roof mean upgrading the insulation?

Usually, yes, when the roof is over a heated space and more than half of it is being re-covered. In England, Wales and Northern Ireland that is renovation of a thermal element, which should be brought towards the renovation U-value where feasible; a Scottish project goes through the council's building standards service, which confirms whether a warrant applies.

A felt replacement is a good point to switch to a warm roof, with insulation laid above the deck under the new membranes. On larger roofs, tapered insulation can also correct poor falls that have caused ponding, which a patch repair cannot fix. Raising the roof level affects upstands and door thresholds, so we check heights at survey. Any approval is arranged by us as part of the job, and the building regulations page sets out the rules by nation.

What's included?

  • Vapour control layer and warm-roof insulation where needed
  • Mineral-finished cap sheet, upstands, outlets and edge trims
  • Strip-off of the existing roof covering and removal of waste
  • Two- or three-layer reinforced bitumen membrane with staggered laps

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?

Torch-on felt roofing in Rugby: questions

Do you cover Rugby?

Yes. Rugby is part of our Warwickshire coverage, including postcode districts CV21, CV22. 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 Rugby?

Where the work needs approval it goes to Rugby 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 torch-on felt roof cost in Rugby?

£1,500–£2,600 for a typical 18 m² garage roof in torch-on felt, at West Midlands guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Can torch-on felt be laid in wet weather?

Not in rain or on a wet deck, because moisture trapped under the membrane causes blisters. Light cold weather is usually workable, but we will postpone rather than lay on a damp surface.

How long does it take to lay a torch-on felt roof?

A garage roof typically takes one to two days and an insulated extension two to three. Larger roofs and blocks are phased over longer, with each area made weathertight before the team leaves.

Other flat roof work in Rugby

Torch-on felt roofing in Rugby: get a fixed price

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

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