Foiled Backed Plasterboard 1200mm x 2400mm x 12.5mm (8 x 4)

Knauf Vapourshield has a metallised polyester foil laminated on the grey paper back.

Vapour Check Performance:
12.5mm Vapourshield = 78.5 MNs/g

Knauf Vapourshield has a Thermal Conductivity figure of k = 0.16 W/mK.

Thermal Resistance:
9.5mm = 0.06m2 K/W
12.5mm = 0.07m2 K/W
15.0mm = 0.09m2 K/W