Tyvek® AirGuard® Smart is an airtight variable vapor barrier, which consists of HDPE Tyvek® and features a polymer coating. Tyvek® AirGuard® Smart offers high moisture-resistance in the winter and low moisture resistance in the summer. As a result, Tyvek® AirGuard® Smart is ideal for constructions where the cold side offers no or very little breathing properties. The active layer adapts to the relative humidity and will expel moisture outdoors in the summer if it has become entrapped within the construction.

Additional information

Insulation side