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Flat roof systems

Torch-on felt roofing across Midlothian

In Midlothian, torch-on felt is one of the most economical ways to replace a flat roof properly. We fit two-layer systems on garages and extensions and three-layer systems on larger and multi-occupied roofs. The guide figures shown here are adjusted for the region, and a survey of the deck, falls and access sets your fixed price.

Roofer torching a slate-grey mineral cap sheet on a commercial flat roof behind edge protectionComputer-generated example image
Price per m²
£57–£100
Typical life
15–25 years
Manufacturer guarantees
10–20 year material guarantees on specified systems
Typical garage roof
£1,450–£2,500

Midlothian at a glance

Largest towns
Bonnyrigg, Penicuik, Mayfield, Dalkeith
Postcode areas
EH
Building standards
Midlothian Council
Neighbouring areas
City of Edinburgh · East Lothian · West Lothian · Scottish Borders
Guide price region
Scotland (−5% on West Midlands rates)

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

Guide prices including VAT at Scotland 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£1,450–£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

Which flat roofs are common in Midlothian?

Flat roofs in Midlothian sit on lock-up garage blocks on estates, shops with flat-roofed rear stores below flats and terraced streets with flat-roofed rear kitchens and bathrooms. Scotland averages roughly 1,570 mm of rain a year, with the west far wetter than the east, so drainage, falls and wind uplift are part of every specification we write. Approximate 1991–2020 regional averages based on Met Office data.

Building standards in Scotland

In Scotland a building warrant is usually needed for alterations, structural work and new roofs; like-for-like repairs to a covering can be exempt. Section 6 of the technical handbooks sets a domestic roof benchmark of 0.12 W/m²K, applied as far as reasonably practicable on an existing roof. In Midlothian the application goes to Midlothian Council (building standards). More on the rules.

Should I choose torch-on felt or a different flat roof system?

Choose torch-on felt when you want a proven, layered system at a sensible price, particularly on larger roofs, blocks of flats and commercial buildings where several layers give useful redundancy. It is a weaker choice where hot works are hard to manage safely.

For: generally lower cost per square metre; two or three layers, so a single defect in one layer need not cause a leak; tough mineral finish; long track record and a British Standard code of practice; repairs can be made with compatible materials.

Against: needs a naked flame unless a cold-applied or self-adhesive alternative is used; shorter typical life than EPDM or GRP; the finish is functional rather than decorative; more laps to detail than a single sheet.

On small domestic roofs near timber, EPDM avoids the torch entirely. GRP gives a harder, neater surface. For an overlay, a liquid-applied system is often simpler. Large commercial roofs may suit single-ply, and older buildings may suit mastic asphalt. See our comparison guide.

Which towns in Midlothian do we cover?

Torch-on felt roofing in Midlothian: questions

Which towns in Midlothian do you cover?

All of Midlothian. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

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

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

Which postcode areas do you cover in Midlothian?

All of Midlothian, including the EH postcode areas. Send your full postcode and we'll confirm.

Why does my felt roof have blisters?

Blisters usually form when moisture or air trapped beneath the felt expands in the sun. A few small, intact blisters may be monitored, but widespread or split blisters point to a repair or replacement.

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.

Can I paint or coat an old felt roof?

Reflective or liquid coatings can extend the life of a sound felt roof, but they will not fix wet insulation, a rotten deck or poor falls. A survey shows whether coating or replacement makes more sense.

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