Wood-PVC subframe
Counterframe with OSB 3 wooden shoulder and PVC stop profile; all components are assembled and sealed at the joints in order to guarantee permanent air tightness.
| PVC | Recycled rigid PVC. Thermal conductivity λ=0.17 W/m K |
| 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. |
