SMARTPLY PROPASSIV - The First Airtight board certified by PassivHaus

SMARTPLY PROPASSIV is a structural OSB3 panel with integrated vapour control and air barrier properties for use as structural sheathing or roof lining in timber frame structures. Airtightness is engineered into the OSB panel substrate, whilst SmartPly's in-house speciality surfacing technology provides an integrated vapour barrier with consistently high vapour resistance over the entire surface. The coating also provides a smooth durable surface for superior bonding of airtight tape at panel joints. SMARTPLY PROPASSIV provides a sustainable and robust alternative to specialist AVCL membranes which are prone to damage by site trades during the construction process. The product is designed to contribute to the performance of low energy, passive design projects.