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ICE 2DIVAGV

AIRSTOP DIVA+ VAPOUR BARRIER FABRIC-REINFORCED

is a moisture-variable vapour barrier for use in the air-tight layer. The functional membrane changes its diffusion resistance depending on the current humidity. During the winter months room atmosphere is generally dryer. The sd-value of the vapour barrier increases. This process results in the penetration of only a little water vapour into the construction and/or into the insulation. In summer, when there is sufficient solar insolation, the relative humidity behind the membrane is higher as a result of reverse diffusion. The water molecules are stored in the membrane. The sd-value sinks, causing more water vapour to escape from the construction and into the rooms and the building element becomes dryer.
ICE 2AS150

AIRSTOP SOLID SD23 VAPOUR BARRIER 1,50m x 50m

is an extremely tear-resistant vapour retarder for the airtight level in roof and wall constructions.