Real Facts No.17 | Straw as insulation material

Anisotropic behaviour: The effect of anisotropic behaviour on timber is well from timber. If thermal flux is perpendicular to the fibre, the conductivity (λ) of softwood is around 0.13 W/(mK). In the direction of the fibre, the conductivity is about 0.29 W/(mK). In the process of straw bale production, the straw stalks are pressed into bales with a certain orientation. A high proportion of the stalks are oriented perpendicular to…