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 a liquid-applied roof in Coleraine?
Where a building in Coleraine has an older asphalt or concrete roof that is sound but tiring, a compatible liquid system can sometimes refresh it. The key is matching the primer and system to the substrate and dealing with any blisters, cracks or poor falls before the membrane goes on.
Coleraine's flat roofs are mostly on newer estates where the first extension roofs are now being replaced, with plenty on 1930s semis with flat-roofed garages and kitchen extensions too. 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 liquid-applied roof cost in Coleraine?
For Coleraine we use Northern Ireland rates: £1,800–£2,850 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.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), liquid-applied | £1,800–£2,850 |
| Balcony (12 m²), liquid-applied, scaffold | £1,650–£2,850 |
| Single garage (18 m²), EPDM rubber | £1,400–£2,450 |
| Extension (20 m²), EPDM, new deck + insulation | £2,450–£4,300 |
Do building regulations apply if a liquid coating goes over my roof?
They can. In England, Wales and Northern Ireland, re-covering more than half of a roof over a heated room is usually renovation of a thermal element, even when the new membrane goes over the old, so the roof should be insulated towards the renovation standard where feasible; for a Scottish property, the local building standards team will confirm whether a warrant is required.
A minor coating repair to a small area is different from re-covering the whole roof. Where insulation is needed, an overlay is not always practical, because the insulation has to go under a new waterproof layer. In that case we may recommend stripping to the deck, fitting a warm roof and applying the liquid system on top. Where approval applies, we deal with the paperwork; details are on the building regulations page.
What's included?
- Surface cleaning, repairs and removal of loose material
- Top coat with optional anti-slip finish, and guarantee registration where available
- Detailing of upstands, outlets, pipes and corners before the main area
- Primer matched to the substrate
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?
Liquid-applied 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 liquid-applied roof cost in Coleraine?
£1,800–£2,850 for a typical 18 m² garage roof in a liquid-applied system, at Northern Ireland 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.
Can liquid roofing stop a leak on a flat roof?
It can, if the leak is at a detail or the membrane is worn but the roof beneath is sound. If water has soaked the insulation or deck, coating over it will not cure the problem.