Made from pulped wood, wood fibreboard is potentially a local material for all. As such the challenges and costs (both financial and environmental) of transportation can be more easily managed than some alternatives.
![insulation](/images/insulation_series.jpg)
Description
The pulped wood is held together to form boards, the adhesive used will influence the sustainability and environmental impact of the specific board. A resin adhesive is sometimes used to bind fibres, in some the natural lignin present among the fibres fulfils this role, or the fibres can be interwoven.
Features
- Non-toxic (usually) & non-irritating.
- Biodegradable.
- Renewable.
- Adaptable. Can be used between wooden studs or in construction, for example external boarding protected by a coat of render.
- Self-supporting. Wood fibreboard is rigid.
Performance
Wood external fibreboards at 250 kgs/m2 have a thermal conductivity or K value of 0.049 W/m.K.
(Watts per meter Kelvin ~ a lower value is a better result)
Cost
Approximately £30m2 – bear in mind that this is both a structural and insulating material.
References
http://www.natureproinsulation.co.uk/external_board.htm
Leave a Reply