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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
7 products
newest
140mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 3 ) - image
140mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 3 )
Rock Mineral Wool Slabs Pack Length: 3600mmPack Width: 1800mmPack coverage: 2.16m2Thickness: 140mmQuantity: Pack Of 3
Last known price: £37.85
£ 45.42 Inc VAT
100mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 6 ) - image
100mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 6 )
Rock Mineral Wool Slabs Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 100mmQuantity: Pack Of 6
Last known price: £49.90
£ 59.88 Inc VAT
90mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 6 ) - image
90mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 6 )
Rock Mineral Wool Slabs Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 90mmQuantity: Pack Of 6
Last known price: £47.10
£ 56.52 Inc VAT
70mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 8 ) - image
70mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 8 )
Rock Mineral Wool Slabs Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 70mmQuantity: Pack Of 8
Last known price: £50.74
£ 60.89 Inc VAT
60mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 10 ) - image
60mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 10 )
Rock Mineral Wool Slabs Pack Length: 12000mmPack Width: 6000mmPack coverage: 7.2m2Thickness: 60mmQuantity: Pack Of 10
Last known price: £54.69
£ 65.63 Inc VAT
50mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 12 ) - image
50mm Knauf Rocksilk Flexible Insulation Slab Multi-purpose ( Pack of 12 )
Rock Mineral Wool Slabs Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 50mmQuantity: Pack Of 12
Last known price: £52.44
£ 62.93 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
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