U-values for ventilated panel with insulation (λ=0.037) and back board:

115mm frame = 0.43 W/m²K
140mm frame = 0.33 W/m²K

115mm frame = 0.42 W/m²K
140mm frame = 0.33 W/m²K

115mm frame = 0.43 W/m²K
140mm frame = 0.33 W/m²K

115mm frame = 0.50 W/m²K
140mm frame = 0.38 W/m²K

U-values for ventilated panel with insulation (λ=0.02) and back board:

115mm frame = 0.26 W/m²K
140mm frame = 0.19 W/m²K

115mm frame = 0.25 W/m²K
140mm frame = 0.19 W/m²K

115mm frame = 0.26 W/m²K
140mm frame = 0.19 W/m²K

115mm frame = 0.34 W/m²K
140mm frame = 0.24 W/m²K

VELFAC Ribo wood/aluminium

Panels