ISO-CONNECT Vario SD

ISO-CONNECT VARIO SD is a humidity-regulating window and door connection foil designed to provide airtight sealing on both the internal and external sides of the building envelope. Unlike conventional systems that require separate internal and external membranes, its variable Sd technology allows a single product to perform both functions.

The membrane adapts its vapour resistance in response to changing humidity conditions and seasonal temperature gradients. At higher Sd values it provides increased protection against moisture penetration, while at lower Sd values it allows greater drying of the joint. This humidity-regulating action helps trapped construction moisture escape in either direction and supports the long-term performance of the insulated connection.

Suitable for window and external door connections, ISO-CONNECT VARIO SD can function as external weather protection while also providing the airtight separation required internally. This simplifies installation, reduces the risk of mixing up internal and external membranes and means fewer sealing products need to be purchased and stored.