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Upgrades

Warm roof insulation upgrades across Angus

A warm roof upgrade in Angus adds height, so we check the levels at doors, sills, walls and rooflights at the free survey. Upstands are raised to keep about 150 mm above the finished roof, trims are reset, and where height is tight, we look at thinner insulation or other options.

Foil-faced PIR insulation boards laid over a vapour control layer to make a warm flat roofComputer-generated example image
Guide price
£2,650–£4,650
Survey
Free for new and replacement roofs
Quote
Fixed, in writing
Coverage
England, Wales, Scotland, NI

Angus at a glance

Largest towns
Arbroath, Forfar, Montrose, Carnoustie
Postcode areas
DD
Building standards
Angus Council
Neighbouring areas
Dundee City · Perth and Kinross · Fife · Aberdeen City
Guide price region
Scotland (−5% on West Midlands rates)

How much does a warm roof upgrade cost in Angus?

Guide prices including VAT at Scotland rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Extension (20 m²), EPDM, new deck + insulation£2,650–£4,650
Extension (20 m²), EPDM with sedum green roof£4,200–£7,700

Which flat roofs are common in Angus?

Flat roofs in Angus sit on 1960s and 1970s link-detached houses with flat-roofed garages and porches, 1930s semis with flat-roofed garages and kitchen extensions 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 Angus the application goes to Angus Council (building standards). More on the rules.

How long does a warm roof last?

The insulation in a warm roof should last for the life of the waterproofing above it, as long as it stays dry. Rigid PIR boards don't settle or slump in the way some loose insulation can.

The waterproofing is what sets the timescale. EPDM is typically quoted at 25 to 50 years, GRP at 20 to 40 years and modern torch-on felt at 15 to 25 years with good specification and care. A warm build-up also helps the deck, because keeping it warm and dry lowers the risk of condensation rot. If the waterproofing fails and water gets into the insulation, the wet boards should be replaced, so leaks need prompt attention. The lifespan guide compares the systems.

Which towns in Angus do we cover?

Warm roof insulation upgrades in Angus: questions

Which towns in Angus do you cover?

All of Angus. 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 warm roof upgrade cost in Angus?

£2,650–£4,650 for a 20 m² extension roof in EPDM with a new deck and insulation, 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 Angus?

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

Can you insulate a flat roof from inside instead?

It is possible, but insulating between or under the joists creates a cold roof, which needs ventilation and carries a higher condensation risk. When the roof is being re-covered anyway, a warm roof from above is usually the better option.

Is a warm roof worth it on a garage?

On a detached, unheated garage, usually not, as there is no heated space to protect and the thermal rules don't normally apply. On an integral or heated garage, or one being converted into a room, it is.

Will a warm roof make my room warmer?

Usually, yes. A room under a poorly insulated flat roof loses less heat once the roof is upgraded and tends to feel more even in temperature. How much difference you notice depends on how the roof was built before.

Everything about warm roof insulation upgrades → · All flat roofing in Angus →

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