Gutex Thermofibre

Where to use it

Gutex Thermofibre blown-in insulation can be used to fill contained or enclosed spaces in timber frame walls, roofs, ceilings and floors. It can also be used to create a layer of loose insulation in cold ventilated loft spaces (spread over and between the ceiling joists).   

What it does

Gutex Thermofibre provides excellent thermal performance in winter and prevents overheating in the summer due to its ability to dramatically slow down the transfer of heat from external sources.   

As a loose fibrous insulation, Thermofibre can be blown-in to cavities inside walls, roofs and floors; a specialist machine and experienced installer is required. Free-flowing Thermofibre gets into every corner and eliminates the potential for any gaps of uninsulated space. Anything else in the cavity like pipes and cables are also encased in insulation giving excellent performance that would be difficult to achieve with rigid insulation boards. With no air gaps, the potential for heat loss due to convection is effectively eliminated (no closed loop thermal bypass occurs).

Gutex Thermofibre is extremely breathable (vapour diffusion open) and is ideal for use in breathable construction elements. It can absorb moisture vapour from the indoor environment and release it harmlessly into the external atmosphere. This process will work in reverse too, especially in summer, when warm sun outside drives moisture toward the interior of the building. When combined with Pro Clima Intello Plus, Thermofibre allows the moisture vapour to harmlessly migrate back into the internal environment with no risk of condensation and moisture or mould build up.

Gutex Thermofibre contains a fire retardant. This gives the material an excellent result in reaction to fire tests; it will char rather than burn.

Why we love it

Gutex Thermofibre provides excellent insulation in both winter and summer and improves the air quality, temperature and humidity within buildings. 

Thermofibre is made from recycled wood chips that came from local sawmills creating products for the timber frame industry. The wood chips originated from trees grown in sustainably managed forests. As the carbon emitted during manufacture is less than the carbon absorbed by the trees and stored in the wood, Thermofibre is a carbon negative product and actively contributes towards reducing global CO2.