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Flat Roof Insulation

Competitive Trade Pricing with quantity discounts. Online supplier of Flat Roof Insulation Boards from UK top rated brands Xtratherm, Knauf, Rockwool Insulation, Isover, Ursa, Celotex, Kingspan, Superglass, Isover, loft insulation and so on.

About

A flat roof insulation system typically consists of an insulating material, a vapour barrier, a thermal break and a weatherproofing membrane. The insulating material is usually a foam, such as expanded polystyrene, that is sandwiched between the vapour barrier and the thermal break. The vapour barrier prevents moisture from passing through the insulation and into the building envelope. The thermal break prevents heat from passing through the insulation and into the building envelope.

Have a browse of our stock and filter by thickness or coverage on the left-hand side of the page. If you’d like to talk through the suitability of some Insulation Boards for your project, or get a quantity discount quotation please call us on 02039519012 , email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Prices.

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Flat Roof Insulation - image

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Price
£ 3.51
£ 496.62
Thickness
12 products
newest
40mm Stylite Plustherm Grey EPS 70 Insulation Board ( 1 sheet )
Expanded Polystyrene (EPS Insulation) Pack Length: 1200mmPack Width: 600mmPack coverage: 0.72m2Thickness: 40mmQuantity: 1 SheetGrade: 70 (kPa)
£ 3.51
£ 4.21 Inc VAT
40mm Unilin FR/ALU Thin-R Flat Roof Insulation ( Pack of 7 ) - image
40mm Unilin FR/ALU Thin-R Flat Roof Insulation ( Pack of 7 )
Flat roof insulation board Pack Length: 19600mmPack Width: 8400mmPack coverage: 20.16m2Thickness: 40mmQuantity: Pack Of 7
Last known price: £324.22
£ 389.06 Inc VAT
40mm Unilin Thin-R FR/MG Flat Roof Insulation Board ( Pack of 12 ) - image
40mm Unilin Thin-R FR/MG Flat Roof Insulation Board ( Pack of 12 )
Flat Roof Insulation Board Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 40mmQuantity: Pack Of 12
Last known price: £132.24
£ 158.69 Inc VAT
40mm Unilin Thin-R FR-BGM Flat Roof Board ( Pack of 12 ) - image
40mm Unilin Thin-R FR-BGM Flat Roof Board ( Pack of 12 )
Fleece finished bitumen / glass fibre facings Pack Length: 14400mmPack Width: 7200mmPack coverage: 12.96m2Thickness: 40mmQuantity: Pack Of 12
Last known price: £132.09
£ 158.51 Inc VAT
40mm Kingspan Thermaroof TR27 Flat Roof Insulation ( Pack of 8 ) - image
40mm Kingspan Thermaroof TR27 Flat Roof Insulation ( Pack of 8 )
Flat roof insulation board Pack Length: 9600mmPack Width: 9600mmPack coverage: 11.52m2Thickness: 40mmQuantity: Pack Of 8
Last known price: £84.25
£ 101.10 Inc VAT
40mm Kingspan Thermaroof TR26 Flat Roof Board - image
40mm Kingspan Thermaroof TR26 Flat Roof Board
PIR insulation board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 40mmQuantity: 1 Sheet
Last known price: £34.98
£ 41.98 Inc VAT
40mm Kingspan Kooltherm K107 Pitched Roof Board ( Pack of 8 ) - image
40mm Kingspan Kooltherm K107 Pitched Roof Board ( Pack of 8 )
Pitched roof insulation board Pack Length: 19200mmPack Width: 9600mmPack coverage: 23.04m2Thickness: 40mmQuantity: 8 Sheets
£ 496.62
£ 595.94 Inc VAT
40mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 14 ) - image
40mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 14 )
Rock Mineral Wool Slabs Pack Length: 16800mmPack Width: 8400mmPack coverage: 10.08m2Thickness: 40mmQuantity: Pack Of 14
Last known price: £49.55
£ 59.46 Inc VAT
40mm Kingspan Thermapitch TP10 Pitched Roof PIR Insulation Board - image
40mm Kingspan Thermapitch TP10 Pitched Roof PIR Insulation Board
A high performance rigid thermoset polyisocyanurate (PIR) insulation. Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 40mmQuantity: 1 Sheet
£ 47.81
£ 57.37 Inc VAT
40mm IKO Enertherm ALU PIR Insulation Board - image
40mm IKO Enertherm ALU PIR Insulation Board
General Purpose PIR Insulation Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 40mmQuantity: 1 Sheet
£ 27.72
£ 33.26 Inc VAT
40mm Mannok PIR Rigid Insulation Board (Quinn Therm) - image
40mm Mannok PIR Rigid Insulation Board (Quinn Therm)
General Purpose PIR Insulation Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 40mmQuantity: 1 Sheet
£ 27.55
£ 33.06 Inc VAT
40mm EcoTherm Eco-Versal PIR Insulation Board - image
40mm EcoTherm Eco-Versal PIR Insulation Board
General Purpose PIR Insulation Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 40mmQuantity: 1 Sheet
£ 31.91
£ 38.29 Inc VAT
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