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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
11 products
newest
180mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 3) - image
180mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 3)
Non-combustible multi-use insulation slab Pack Length: 3600mmPack Width: 1800mmPack coverage: 2.16m2Thickness: 180mmQuantity: Pack Of 3
Last known price: £39.80
£ 47.76 Inc VAT
140mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 4) - image
140mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 4)
Non-combustible multi-use insulation slab Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 140mmQuantity: Pack Of 4
Last known price: £33.88
£ 40.66 Inc VAT
140mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 4) - image
140mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 4)
Non-combustible multi-use insulation slab Pack Length: 4800mmPack Width: 1600mmPack coverage: 1.92m2Thickness: 140mmQuantity: Pack Of 4
Last known price: £37.60
£ 45.12 Inc VAT
120mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
120mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 120mmQuantity: Pack Of 6
Last known price: £51.76
£ 62.11 Inc VAT
100mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
100mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 100mmQuantity: Pack Of 6
Last known price: £44.66
£ 53.59 Inc VAT
100mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 6) - image
100mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 100mmQuantity: Pack Of 6
Last known price: £37.20
£ 44.64 Inc VAT
90mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
90mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 90mmQuantity: Pack Of 8
Last known price: £33.88
£ 40.66 Inc VAT
70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 8) - image
70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 8)
Non-combustible multi-use insulation slab Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 70mmQuantity: Pack Of 8
£ 52.44
£ 62.93 Inc VAT
60mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12) - image
60mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12)
Non-combustible multi-use insulation slab Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 60mmQuantity: Pack Of 12
£ 58.12
£ 69.74 Inc VAT
50mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12) - image
50mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12)
Non-combustible multi-use insulation slab Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 50mmQuantity: Pack Of 12
£ 42.83
£ 51.40 Inc VAT
50mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 12) - image
50mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 12)
Non-combustible multi-use insulation slab Pack Length: 14400mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 50mmQuantity: Pack Of 12
Last known price: £39.55
£ 47.46 Inc VAT
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