Celotex Roof Insulation

Shop Celotex roof insulation at trade prices: Celotex GA4000 and XR4000 PIR boards, now sold as Sopratherm, for pitched and flat roofs. Prices are ex VAT.

GA4000 covers mid-range thicknesses for pitched roofs and general roof work; XR4000 is the thicker 120mm and 150mm board where you need a lower U-value in one layer. Check a roof build-up with the PIR U-value calculator and the insulation calculator, or read what thickness of PIR you need.

See also all Celotex insulation boards, Celotex floor insulation, Celotex wall insulation and roof insulation from every brand. Celotex orders have a £400 ex VAT minimum. Delivery is free in England, and £40 + VAT to mainland Wales and mainland Scotland, with a £400 ex VAT minimum. We do not deliver to the Isle of Wight. Celotex is delivered separately from other products.