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Flat roof systems

Liquid-applied roofing across Highland

Across Highland, our vetted teams working under S&K apply reinforced liquid membranes to new decks and to sound existing roofs. Weather varies across the area, so application is planned for dry windows and the cure time of the chosen product. The guide prices here are set for this region, and the survey fixes your own price.

Grey liquid waterproofing and reinforcement fleece rolled around a vent pipe on a flat roofComputer-generated example image
Price per m²
£86–£133
Typical life
10–25+ years by product
Manufacturer guarantees
10, 15 or 20-year guarantees by named system
Typical garage roof
£1,950–£3,100

Highland at a glance

Largest towns
Inverness, Fort William, Nairn, Thurso
Postcode areas
IV, KW, PH
Building standards
The Highland Council
Neighbouring areas
Moray · Aberdeenshire · Aberdeen City · Perth and Kinross
Guide price region
Scotland (−5% on West Midlands rates)

How much does a liquid-applied roof cost in Highland?

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), liquid-applied£1,950–£3,100
Balcony (12 m²), liquid-applied, scaffold£1,800–£3,100
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 Highland?

Flat roofs in Highland sit on 1930s semis with flat-roofed garages and kitchen extensions, 1960s and 1970s link-detached houses with flat-roofed garages and porches and newer estates where the first extension roofs are now being replaced. 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 Highland the application goes to The Highland Council (building standards). More on the rules.

Can a liquid roof go over my existing roof, and what preparation is needed?

Yes, if the existing roof is dry, firmly bonded and sitting on a sound deck. A liquid membrane is only as good as what lies beneath it, so we test the old roof before agreeing to overlay it.

At survey we check for:

  • Trapped moisture: soft spots, blisters or wet insulation mean the roof should be stripped, because water sealed in will cause new blisters and decay.
  • Deck condition: any sponginess or deflection needs repair first.
  • Adhesion: on felt and asphalt, loose areas are cut out and patched, and the existing surface must take the primer properly.
  • Falls and ponding: a coating follows the roof as it is. If water ponds now, it will pond on the new surface too unless the falls are corrected.

Preparation then follows: loose chippings removed, the surface cleaned and left to dry, blisters cut back and repaired, cracks filled, and the right primer applied. On older felt, mineral surfaces may need extra cleaning to give a good bond. Where the tests fail, we say so plainly and quote for a strip and re-roof. Read more on ponding water.

Which towns in Highland do we cover?

Liquid-applied roofing in Highland: questions

Which towns in Highland do you cover?

All of Highland. 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 liquid-applied roof cost in Highland?

£1,950–£3,100 for a typical 18 m² garage roof in a liquid-applied system, 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 Highland?

All of Highland, including the IV, KW, PH postcode areas. Send your full postcode and we'll confirm.

Can liquid roofing be applied in the rain?

No. The surface must be dry, and most systems need a dry window while they cure. Some fast-curing products shorten that window, but the team will not apply onto a damp roof.

Is liquid roofing good for balconies?

Often, yes. It forms neatly around railings, door thresholds and drains, and some systems take foot traffic. A new balcony or roof terrace generally needs planning permission, so check before converting a roof.

What is a fleece-reinforced liquid roof?

It is a liquid membrane with a polyester fleece embedded between coats. The fleece adds strength, helps control thickness and resists cracking where the surface moves slightly.

Everything about liquid-applied roofing → · All flat roofing in Highland →

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