Vapour Closed with Reverse Diffusion (VCRD)

A IWI system using a vapour open insulation material with a reverse diffusion membrane allows vapour to pass inwards through the membrane in a “Reverse Diffusion” phase but does not allow vapour from the inside.
A IWI system using a vapour open insulation material with a reverse diffusion membrane allows vapour to pass inwards through the membrane in a “Reverse Diffusion” phase but does not allow vapour from the inside.