The dual role of wood fibre insulation in keeping heat in during winter and keeping it out in summer makes it ideal for insulating ultra-low energy buildings such as Passivhaus.
Wood fibre boards offer good levels of thermal insulation and its high specific heat capacity evens out diurnal heat fluctuations. In the hot midday and early afternoon hours they absorb the heat and act as a 'buffer' delaying the heat's progress. If this heat is stored and released over a specific time frame it can become a positive heat influx in the cooler evening temperatures.
Wood fibre insulation boards are non-toxic, contain up to 95% waste wood from sustainable forests and are carbon negative, locking up 1.2 tonnes of CO₂ for every tonne of boards produced.
