Locks up carbon:
Stores 28 kg of CO₂ per m² from day one, reducing emissions as well as energy use.
Insulation System
Warmshell, the modern answer to breathable insulation for interior, exterior and roofing.
Lets walls breathe:
12× more moisture transfer than plasterboard, reducing condensation and mould risk.
Peace of mind:
With a 25-year warranty, Warmshell IWI is built to last and proven to perform.
Naturally better insulation. A complete system — easy to fit, kind to buildings. Warmshell delivers outstanding thermal and acoustic performance, sustainably.
The Warmshell system
The complete, comprehensive method for insulation
Warmshell comprises three parts, our wood fibre insulation boards, dedicated fixings and adhesives depending on application and our lime products; plaster for internal use and render for external finishes. Together they create a breathable, healthy, insulated space. One that will keep your space warm in the winter and cooler in the summer.
It’s a fantastic natural alternative with great low carbon option as the wood fibre boards actually embody more carbon that it takes to produce them.
The versatile system
Refurbishment, retrofit, renovation, and repair
Perfect for refurbishment, retrofit, renovation, and repair in residential and commercial spaces, Warmshell can be fitted to all surfaces from timber frame to brick and masonry. You can use it internally, externally and in a roof space.
NEW: Warmshell Booklet, Download NOW
Let’s give old buildings many more years of use using woodfibre insulation.
Everything you need to know is in our free booklet.
Warmshell U Value Calculator
Use this calculator to compare U Values of different thicknesses of Warmshell.
So, if you want lower energy bills, a comfortable, healthy space and peace of mind, then it has to be Warmshell.