Diffutherm external wood fibre insulation board is a sustainable and natural external wall insulation (EWI).
Diffutherm is a tried and tested system in the UK that has good thermal performance and excellent reduction of solar gain. Therefore buildings insulated with Diffutherm are much less prone to overheating during periods of sustained hot weather.
Use against a solid background, or over studs and joists when protected with a lime render.
This system has both BBA and LABC approval.
Suitable for use with Passive House and Code 6 new buildings.
Available in a range of thicknesses from 60 mm up to 120 mm.
The boards are tongue and groove and measure 1430 mm x 560 mm (excluding T&G) giving a coverage of 0.80 m² per board.
Diffutherm has a Thermal Conductivity value of 0.043 [W/(mK)].