Three-sided wooden subframe
Counterframe with OSB 3 wooden shoulder without rebate profile; all components are assembled and sealed at the joints in order to guarantee permanent air tightness.
| OSB 3 (load-bearing panels for use in humid locations) | Thermal conductivity λ=0.1 W/m K; resistance to vapor diffusion 90-150; longitudinal bending strength 18 Mpa; transverse bending strength 9 Mpa; insect attack excluded in areas with a temperate climate. |
