Celotex
80mm Celotex GA4080 PIR Insulation Board 2.4m x 1.2m
£28.42 Inc VAT £23.68 Ex VATUnit price /UnavailableIn stock
Rockwool
100mm Rockwool RWA45 Acoustic Slab 1.2m x 600mm Bulk 20 packs
£527.76 Inc VAT £439.80 Ex VATUnit price /UnavailableIn stock
Recticel
90mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£30.26 Inc VAT £25.22 Ex VATUnit price /UnavailableIn stock
Celotex
140mm Celotex XR4140 PIR Insulation Board 2.4m x 1.2m
£44.70 Inc VAT £37.25 Ex VATUnit price /UnavailableIn stock
Recticel
30mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£13.85 Inc VAT £11.54 Ex VATUnit price /UnavailableIn stock
Recticel
20mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£14.52 Inc VAT £12.10 Ex VATUnit price /UnavailableIn stock
Recticel
70mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£23.94 Inc VAT £19.95 Ex VATUnit price /UnavailableIn stock
Recticel
60mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£21.46 Inc VAT £17.88 Ex VATUnit price /UnavailableIn stock
Kingspan
100mm Kingspan Kooltherm K107 Pitched Roof Insulation Board 2.4m x 1.2m 8.64m²
£342.11 Inc VAT (3 per pack) £285.09 Ex VAT (3 per pack)Unit price /UnavailableIn stock
Recticel
140mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£44.70 Inc VAT £37.25 Ex VATUnit price /UnavailableIn stock
Knauf
25mm Knauf Rocksilk® RS100 Building Slab 1200mm x 600mm
£53.70 Inc VAT (12 per pack) £44.75 Ex VAT (12 per pack)Unit price /UnavailableIn stock
Celotex
130mm Celotex XR4130 PIR Insulation Board 2.4m x 1.2m
£44.57 Inc VAT £37.14 Ex VATUnit price /UnavailableIn stock
Superglass
100mm Superglass Multi Roll 44 12.12m²
£30.11 Inc VAT £25.09 Ex VATUnit price /UnavailableIn stock
Recticel
80mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£28.42 Inc VAT £23.68 Ex VATUnit price /UnavailableIn stock
Kingspan
50mm Kingspan Kooltherm K107 Pitched Roof Insulation Board 2.4m x 1.2m 17.28m²
£358.42 Inc VAT (6 per pack) £298.68 Ex VAT (6 per pack)Unit price /UnavailableIn stock
Recticel
160mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£53.58 Inc VAT £44.65 Ex VATUnit price /UnavailableIn stock
Knauf
100mm Knauf Rocksilk® RS100 Building Slab 1200mm x 600mm
£50.41 Inc VAT (3 per pack) £42.01 Ex VAT (3 per pack)Unit price /UnavailableIn stock
Rockwool
30mm Rockwool RWA45 Slab 1.2m x 600mm
£34.02 Inc VAT (12 per pack) £28.35 Ex VAT (12 per pack)Unit price /UnavailableIn stock
Knauf
50mm Knauf Rocksilk® RS100 Building Slab 1200mm x 600mm
£52.96 Inc VAT (6 per pack) £44.13 Ex VAT (6 per pack)Unit price /UnavailableIn stock
Celotex
110mm Celotex XR4110 PIR Insulation Board 2.4m x 1.2m
£38.24 Inc VAT £31.87 Ex VATUnit price /UnavailableIn stock
Recticel
130mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£44.57 Inc VAT £37.14 Ex VATUnit price /UnavailableIn stock
Superglass
200mm Superglass Multi Roll 44 5.63m²
£28.38 Inc VAT £23.65 Ex VATUnit price /UnavailableIn stock
Recticel
125mm Recticel Eurothane GP PIR Insulation Board 2.4m x 1.2m
£45.76 Inc VAT £38.13 Ex VATUnit price /UnavailableIn stock
Kingspan
120mm Kingspan Kooltherm K107 Pitched Roof Insulation Board 2.4m x 1.2m 5.76m²
£267.98 Inc VAT (2 per pack) £223.32 Ex VAT (2 per pack)Unit price /UnavailableIn stock
Insulating a pitched roof above the rafters is the common method chosen for new builds and re-roofing existing detached buildings as it provides superior thermal performance for the building. Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. This over-rafter insulation method also reduces thermal bridging, giving an airtight continuous layer of high-performance insulation and results in a well-insulated attic space.