Weymouth at a glance
- Postcode districts
- DT3, DT4
- Population
- about 53,416 (GeoNames)
- Council area
- Dorset Council
- Building approval
- Dorset Council building control, or a registered building control approver
- Guide price region
- South West (+3% on West Midlands rates)
Why choose a liquid-applied roof in Weymouth?
For businesses and landlords in Weymouth, a cold-applied liquid roof means no flame on site and, with some systems, a short cure time. That can make it easier to work around occupied buildings, tenants and opening hours than a system that needs hot works or a long strip-out.
Weymouth's flat roofs are mostly on low-rise post-war blocks of flats, with plenty on lock-up garage blocks on estates too. The South West averages roughly 1,260 mm of rain a year and many roofs face wind off the Atlantic, so we specify fixings and edge details for wind uplift as well as drainage.
How much does a liquid-applied roof cost in Weymouth?
Guide price in Weymouth: £2,100–£3,350 for a typical 18 m² garage roof in a liquid-applied system, including VAT at South West rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), liquid-applied | £2,100–£3,350 |
| Balcony (12 m²), liquid-applied, scaffold | £1,950–£3,350 |
| Single garage (18 m²), EPDM rubber | £1,650–£2,900 |
| Extension (20 m²), EPDM, new deck + insulation | £2,900–£5,050 |
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?
- Survey of the existing roof, including moisture and adhesion checks
- Primer matched to the substrate
- Top coat with optional anti-slip finish, and guarantee registration where available
- Surface cleaning, repairs and removal of loose material
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?
Liquid-applied roofing in Weymouth: questions
Do you cover Weymouth?
Yes. Weymouth is part of our Dorset coverage, including postcode districts DT3, DT4. 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 Weymouth?
Where the work needs approval it goes to Dorset 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 liquid-applied roof cost in Weymouth?
£2,100–£3,350 for a typical 18 m² garage roof in a liquid-applied system, at South West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Is liquid roofing the same as a roof paint?
No. A proper liquid-applied membrane is built to a specified thickness and usually reinforced with fleece, while roof paints and simple coatings are much thinner and mainly used to extend the life of an existing covering.
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.