Partel Vara Plus Air Tightness is a smart humidity variable airtight vapour control layer with an optimum permeability range. Advanced hygrovariable technology allows incredible summer drying conditions, but can equally protect the construction in winter.

• Innovative airtight membrane that changes permeability according to the ambient relative humidity (RH)
• Ensures optimum moisture flow through building structures with a Sd range of 0.4m to 60m
• Extremely safe airtight system
• High-performance solution that provides protection from heat loss through the thermal insulation
• Designed for internal use on the warm side of insulation on wall, ceiling, roof and floor applications by controlling and limiting sources of interstitial condensation
• Suitable for timber frame, masonry and steel construction