Flat Roof Insulation Boards

Browse through our wide selection of flat roof insulation boards, ranging from brands such as Kingspan, Recticel and Rockwool. With insulation board systems ranging from Kingspan TR26 to Rockwool Hardrock, our selection and expertise can provide the best solution for flat roof insulation.

All of our flat roof insulation boards are leading brands in the market, are high performing and have fantastic fire ratings.

Here we have our range of flat roof insulation boards which include the following:

Kingspan TR26 and Reciticel Eurothane EuroDeck - This insulation board has a composite foil facing on both sides, and is compatible with mechanical fixed single-ply membranes and most green roof systems
Kingspan TR27 and Recitcel Powerdeck F - This product has a glass tissue facing on both sides and is compatible with non-bituminous fully bonded membranes. Can be fully adhered to and mechanically fixed
Rockwool Hardrock - A variety of options that are compatible with most roof applications and has an excellent fire rating.
Kingspan TR24 - Compatible with partially bonded torch applied multi-layer bituminous waterproofing.

Kingspan TR24 - (South and London Branch)

£76.39 inc. VAT

£70.92 ex. VAT

Kingspan TR26 - (Kingspan Direct)

£171.30 inc. VAT

£269.71 ex. VAT

Kingspan TR27 - (Kingspan Direct)

£83.70 inc. VAT

£104.76 ex. VAT

Rockwool Hardrock - (North West England)

£46.20 inc. VAT

£38.50 ex. VAT

Kingspan TR26 - (North West England)

£28.09 inc. VAT

£23.41 ex. VAT

Kingspan TR27 - (North West England)

£21.83 inc. VAT

£18.19 ex. VAT

Rockwool UB34 56mm - 600 x 1200mm - (North West England)

£70.20 inc. VAT

£58.50 ex. VAT

Kingspan TR26 - (South and London Branch)

£197.74 inc. VAT

£164.78 ex. VAT

Kingspan TR27 - (South and London Branch)

£91.94 inc. VAT

£76.62 ex. VAT

Rockwool Hardrock Multi DD 60mm - 1000 x 1200mm (Pallet 20)

£790.20 inc. VAT

£658.50 ex. VAT

Rockwool Hardrock Multi DD 85mm - 1000 x 1200mm (Pallet 15)

£746.40 inc. VAT

£622.00 ex. VAT

Rockwool Hardrock Multi DD 105mm - 1000 x 1200mm (Pallet 12)

£709.80 inc. VAT

£591.50 ex. VAT

Rockwool Hardrock Multi DD 115mm - 1000 x 1200mm (Pallet 10)

£648.00 inc. VAT

£540.00 ex. VAT

Rockwool Hardrock Multi DD 150mm - 1000 x 1200mm (Pallet 8)

£642.00 inc. VAT

£535.00 ex. VAT

Rockwool Hardrock Multi DD 185mm - 1000 x 1200mm (Pallet 6)

£585.00 inc. VAT

£487.50 ex. VAT

Rockwool Hardrock Underlay DD 150mm - 1000 x 1200mm (Pallet 8)

£594.60 inc. VAT

£495.50 ex. VAT

Rockwool UB34 56mm - 600 x 1200mm (Pallet 72)

£4,663.50 inc. VAT

£3,886.25 ex. VAT

Kingspan TR24 - (Kingspan Direct)

£55.99 inc. VAT

£47.23 ex. VAT

Recticel Powerdeck F

£7.56 inc. VAT

£6.30 ex. VAT

Recticel Eurothane Eurodeck

£24.19 inc. VAT

£20.16 ex. VAT

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Why Buy Our Insulation Boards for Flat Roofs?

Our flat roof insulation boards are equipped with fantastic fire rates, efficient performance and high-quality materials used in production. In addition to this, our products and services are provided by experts with professional experience within the roofing and construction industry, so feel free to contact our team today

FLAT ROOF INSULATION BOARDS FAQs

Which Insulation is Best for Flat Roofs?

Flat roof insulation allows interiors of any home to feel warmer during the winter, and cooler during the summer. PIR and Hardrock work well as insulation for flat roofs and can be often found in modern constructions. This is due to them being a rigid board with high quality thermal properties compared to older types of roof insulation, such as glass wool.

What is PIR Insulation?

PIR stands for polyisocyanurate which is a type of rigid foam insulation that's used in building construction

How thick should flat roof insulation be?

For any flats or homes that are uninsulated, you should aim to insulate your flat roofs with insulation boards totalling around 150mm thickness.

New government guidelines from 2021 have stated that for flat roofs target U-value W/(m2-k) of 0.16 for dwellings, and 0.18 for other buildings that are not classed as dwellings. Below is an example of how to understand how thick your flat roof insulation should be:

0.16 W/(m2·K) for a Dwelling

TR26/Eurodeck would be 130mm
TR27/Powerdeck F would be 140mm
Rockwool Hardrock would be 220mm

0.18 W/(m2·K) for non-dwelling

TR26/Eurodeck would be 120mm
TR27/Powerdeck would be 120mm
Rockwool Hardrock would be 190mm

For more information on U-Value Calculations, please click the following links for all associated brands

Check out the government guidelines here.