Coleraine at a glance
- Postcode districts
- BT51, BT52, BT55, BT56
- Population
- about 25,681 (GeoNames)
- Council area
- Causeway Coast and Glens Borough Council
- Building approval
- Causeway Coast and Glens Borough Council building control
- Guide price region
- Northern Ireland (−12% on West Midlands rates)
Why choose torch-on felt roofing in Coleraine?
Torch-on is a good fit in Coleraine when the budget matters but quality cannot slip. Modern polyester-reinforced membranes typically last 15 to 25 years, high-performance systems longer, and manufacturer material guarantees are available on many specified systems, registered where the system allows.
Around Coleraine, flat roofs are common on terraced streets with flat-roofed rear kitchens and bathrooms and on shops with flat-roofed rear stores below flats. Northern Ireland averages roughly 1,150 mm of rain a year, spread over many wet days, so a roof that sheds water quickly to clear outlets lasts far longer than one that holds puddles.
How much does a torch-on felt roof cost in Coleraine?
At Northern Ireland guide rates, a typical 18 m² garage roof in torch-on felt comes to £1,350–£2,300 including VAT. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), torch-on felt | £1,350–£2,300 |
| Extension (20 m²), felt, new deck + insulation | £2,400–£4,100 |
| Block of flats (150 m²), felt + insulation + scaffold | £13,700–£23,950 |
| Single garage (18 m²), EPDM rubber | £1,400–£2,450 |
| Extension (20 m²), EPDM, new deck + insulation | £2,450–£4,300 |
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
- Strip-off of the existing roof covering and removal of waste
- Deck inspection with replacement of damaged boards
- Two- or three-layer reinforced bitumen membrane with staggered laps
Building control in Northern Ireland
In Northern Ireland, Technical Booklet F1 sets roof insulation at 0.18 W/m²K when a roof over a heated room is renovated or newly built, where that's feasible. The district council's building control should be contacted before work starts, and we prepare the details it asks for. More on the rules.
Which nearby areas do we also cover?
Torch-on felt roofing in Coleraine: questions
Do you cover Coleraine?
Yes. Coleraine is part of our County Londonderry coverage, including postcode districts BT51, BT52, BT55, BT56. 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 Coleraine?
Where the work needs approval it goes to Causeway Coast and Glens Borough Council building control. 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 Coleraine?
£1,350–£2,300 for a typical 18 m² garage roof in torch-on felt, at Northern Ireland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
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.
Is torch-on suitable for a block of flats?
Yes, layered bitumen systems are widely used on blocks of flats and commercial buildings. Larger roofs often use three layers and insulation, with hot works planned around residents.