40mm Insulation
40mm insulation is a robust and effective insulating material widely used to enhance thermal efficiency and reduce energy consumption. With its increased thickness, 40mm insulation offers superior performance in maintaining indoor temperatures and providing better energy savings compared to thinner options. 40mm insulation is particularly beneficial for applications requiring higher levels of thermal resistance, contributing to a more energy-efficient and comfortable living or working environment. Its versatility and effectiveness make it a preferred choice for many building projects.
40mm insulation is suitable for application in ceilings, floors, roofs and walls where space may be limited. It has exceptional thermal conductivity, serving as a supportive insulative material in cold and warm temperatures. What's more, 40mm thick insulation is made from a vast range of materials, not limited to foil, mineral wool, wood fibre and PIR to suit different needs for the building.
In addition to thermal insulation, some 40mm insulation solutions feature acoustic insulation benefits and fire protection for further support. Couple that with the different dimensions available, and you have lots to choose from to suit specific project requirements. If you're unsure whether you need 40mm insulation or something else, you can speak to our excellent customer service team for advice and a no-obligation free quote. We'll ensure to provide UK fast delivery to maintain reliable support.
Looking for a specific type of insulation material? We also stock:
Want to learn more about various insulation thicknesses? Check out our handy advice guides below:
Products in Insulation:
Showing 1 - 36 of 58 products
![Celotex 40mm Cavity Wall Insulation Board CW4040 1.2m x 450mm - 7.56m2 Pack](https://static.prod.cmostores.com/uploads/products/1/l/celotex-cw4000-insulation-board-1570704998.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£72.00 incl VAT
You save: £7.20
Was:
£79.20
![Kingspan Kooltherm K103 Insulation Board 2400mm x 1200mm x 40mm - Pack of 8 Sheets](https://static.prod.cmostores.com/uploads/products/1/l/kingspan-kooltherm-wall-insulation-board.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£438.00 incl VAT
You save: £6.00
Was:
£444.00
![Kingspan Thermawall TW50 Cavity Wall Insulation - 1200mm x 450mm x 40mm - Pack of 12 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-thermawall-tw50-1200x450x40-pir-snelilvdwe-g.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£72.00 incl VAT
You save: £6.00
Was:
£78.00
![Kingspan Thermapitch TP10 PIR Insulation Board 2400 X 1200 X 40mm - Pack of 8 Sheets](https://static.prod.cmostores.com/uploads/products/1/l/kingspan-thermapitch-tp10-pir-insulation-board-1688553044.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£222.00 incl VAT
You save: £12.00
Was:
£234.00
![Kingspan Greenguard GG300 XPS Insulation Board - 1250mm x 600mm x 40mm - Pack of 10 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-greenguard-gg300-3vitcinjdv-g.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£63.60 incl VAT
You save: £1.20
Was:
£64.80
Showing 1-36 of 58