Thickness of the inner layer:: Solbet Optimal PLUS, density 400, d = 420 mm Solbet Optimal PLUS, density 400, d = 360 mm Solbet Optimal PLUS, density 400, d = 240 mm Solbet Optimal + Optimal PLUS, density 500, d = 240 mm Solbet Optimal + Optimal PLUS, density 500, d = 300 mm Solbet Optimal + Optimal PLUS, density 500, d = 360 mm Solbet Optimal + Optimal PLUS, density 600, d = 240 mm Solbet Optimal + Optimal PLUS, density 600, d = 300 mm Solbet Optimal + Optimal PLUS, density 600, d = 360 mm Solbet Optimal, density 700, d=240 mm Type of outer layer: EPS 038 FACADE EXTRA EPS 040 FACADE PLUS EPS 042 FACADE EPS 037 FLOOR / ROOF EKSTRA EPS 038 FLOOR / ROOF PLUS EPS 040 FLOOR / ROOF EPS 031 FACADE EXTRA GRAPHITE EPS 032 FACADE PLUS GRAPHITE EPS 033 FACADE GRAPHITE Thickness of the outer layer: [cm] Calculate U-factor for the data given: