Description
PHS Apollo 2 Vapour Control Membrane enables airtightness and vapour control in roof and wall constructions.
PHS Apollo 2 Vapour Control has an optimum fixed vapour resistance level of Sd 27m. This allows for an ideal level of vapour control by preventing diffusion of internal vapour into the building envelope back in winter and allowing diffusion in summer. This prevents a build-up of condensed water vapour within the building envelope