Flat RoofingContractors

Flat roof systems

Torch-on felt roofing in Thornaby-on-Tees

Replacing an old felt roof in Thornaby-on-Tees? Modern torch-on systems are far tougher than the felt many people remember. We strip the existing covering, repair the deck, add warm-roof insulation where needed and lay new membranes with staggered laps. Guide prices are online, and the fixed price comes after our free survey.

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

Thornaby-on-Tees at a glance

Postcode districts
TS17
Population
about 22,356 (GeoNames)
Council area
Stockton-on-Tees Borough Council
Building approval
Stockton-on-Tees Borough Council building control, or a registered building control approver
Nearest main town
Stockton-on-Tees, about 3 miles
Guide price region
Yorkshire and the Humber (−5% on West Midlands rates)

Why choose torch-on felt roofing in Thornaby-on-Tees?

For a commercial roof in Thornaby-on-Tees, 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 Thornaby-on-Tees, flat roofs are typically found on low-rise post-war blocks of flats, and on bungalows with flat-roofed side extensions and dormers. 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 torch-on felt roof cost in Thornaby-on-Tees?

At Yorkshire and the Humber guide rates, a typical 18 m² garage roof in torch-on felt comes to £1,450–£2,500 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), torch-on felt£1,450–£2,500
Extension (20 m²), felt, new deck + insulation£2,550–£4,450
Block of flats (150 m²), felt + insulation + scaffold£14,750–£25,850
Single garage (18 m²), EPDM rubber£1,500–£2,650
Extension (20 m²), EPDM, new deck + insulation£2,650–£4,650

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?

  • Two- or three-layer reinforced bitumen membrane with staggered laps
  • Hot-works checks and fire watch on every torch-on job
  • Deck inspection with replacement of damaged boards
  • Mineral-finished cap sheet, upstands, outlets 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?

Torch-on felt roofing in Thornaby-on-Tees: questions

Do you cover Thornaby-on-Tees?

Yes. Thornaby-on-Tees is part of our North Yorkshire coverage, including postcode districts TS17. 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 Thornaby-on-Tees?

Where the work needs approval it goes to Stockton-on-Tees 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 Thornaby-on-Tees?

£1,450–£2,500 for a typical 18 m² garage roof in torch-on felt, at Yorkshire and the Humber guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Is torch-on felt better than the old felt roofs?

Yes, considerably. Modern torch-on membranes are polymer-modified and polyester-reinforced, laid in bonded layers, and typically last much longer than the older felt systems they replace.

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.

Other flat roof work in Thornaby-on-Tees

Torch-on felt roofing in Thornaby-on-Tees: get a fixed price

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

Call usGet a guide price