100mm Insulation Boards and Sheets
A popular choice for their excellent thermal performance, durability and fire resistance, 100mm insulation boards and sheets are structured to provide superior insulation properties. Made from various insulation materials like PIR, wood fibre, XPS and more, they're effective for insulating walls, floors and roofs, providing low thermal conductivity to significantly reduce heat transfer and help maintain a consistent temperature on your property. 100mm insulation board can help you keep your home or business warm in the winter and cool in the summer, simultaneously reducing your energy bills. We supply options such as 100mm floor insulation, cavity wall insulation, ceiling insulation, and much more!
100mm insulation boards and sheets also have strong structures with various benefits such as moisture, mould and rot resistance, meaning they are less likely to deteriorate over time. PIR boards are known to withstand impact and compression, making them suitable for high-traffic areas or areas where the risk of damage is apparent. We supply brands such as Kingspan, Steico, IKO, and more. With all that said, if you're unsure what insulation board and sheet size you need, 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 a reliable service.
Looking for specific insulation materials? We also stock:
- Glass Wool Insulation
- Mineral Wool Insulation
- Phenolic Foam Insulation
- Wood Fibre Insulation
- XPS Insulation
Want to know more about insulation sizes? Check out our Help and Advice guides below:
Products in Insulation Board:
Showing 1 - 33 of 33 products
![Kingspan Kooltherm K107 Phenolic Pitched Roof Insulation Board 2400 X 1200 X 100mm - Pack of 3 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-kooltherm-k107-pitched-roof-board-9vl9ncfu8w.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£366.00 incl VAT
You save: £6.00
Was:
£372.00
![Kingspan Greenguard GG300 XPS Insulation Board - 1250mm x 600mm x 100mm - Pack of 4 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-greenguard-gg300-tslqsmzzfe-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
![Kingspan Thermaroof TR27 PIR Flat Roof Insulation Board 1200 X 1200 X 100mm - Pack of 4 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/18970.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£180.00 incl VAT
You save: £18.00
Was:
£198.00
![Kingspan Kooltherm K103 Insulation Board 2400mm x 1200mm x 100mm - Pack of 3 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)
£366.00 incl VAT
You save: £6.00
Was:
£372.00
![Kingspan Thermaroof TR26 PIR Flat Roof Insulation Board 2400 X 1200 X 100mm - Pack of 3 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/30677.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£270.00 incl VAT
You save: £24.00
Was:
£294.00
![Kingspan Thermafloor TF70 PIR Insulation Board - 2400 x 1200 x 100mm - Pack of 3 Sheets](https://static.prod.cmostores.com/uploads/products/1/l/kingspan-thermafloor-tf70-pir-floor-insulation-board-primary-1683731349.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£162.00 incl VAT
You save: £8.40
Was:
£170.40
![Kingspan Kooltherm K112 Phenolic Insulation Framing Board 2400 X 1200 X 100mm - Pack of 3 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-kooltherm-k112-insulation-q4ecgecc0t.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£462.00 incl VAT
You save: £6.00
Was:
£468.00
![Kingspan Thermawall TW50 Cavity Wall Insulation - 1200mm x 450mm x 100mm - Pack of 5 Sheets](https://static.prod.cmostores.com/uploads/products/4/l/kingspan-thermawall-tw50-1200x450x100-pir-2lh03hxfis-g.jpg?&w=206&h=206&fit=fill&fill=solid&fillcolor=FFFFFF&q=50)
£56.40 incl VAT
You save: £4.80
Was:
£61.20
![Kingspan Thermapitch TP10 PIR Insulation Board 2400 X 1200 X 100mm - Pack of 3 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)
£162.00 incl VAT
You save: £8.40
Was:
£170.40
Showing 1-33 of 33