SmartPly has unveiled its latest innovation – the SmartPly VapAirTight structural OSB panel.
SmartPly VapAirTight has integrated vapour control properties and airtightness engineered into each panel. in tests SmartPly VapAirTight has performed six times better than the PassivHaus standard for air leakage, making it suitable for ultra-low energy buildings.
The result of three years of rigorous development by SmartPly and extensive testing at the Fraunhofer Institute for Building Physics, SmartPly VapAirTight is recommended by the Passive House Institute as a product for providing airtightness. Each panel features alternating layers of wood strands coated with a high quality formaldehyde-free resin and wax to deliver outstanding levels of airtightness. A specialist coating is then applied to add vapour resistance and provide a premium performance OSB solution for super-insulated and passive buildings.
David Murray, innovation manager at SmartPly, said: “OSB is assumed to be airtight, but tests prove a huge variation in performance, between manufacturers and even between different production cycles.
“Developed from our OSB3 system, SmartPly VapAirTight has integrated vapour control and unrivalled air barrier properties and will help to close the gap between design and as-built performance.”
Available in a standard 2397mm x 1197mm size, the panel uses a newly developed high performance coating to ensure consistently high vapour resistance across its entire surface. The smooth and durable surface has also been developed to provide superior bonding of airtight tape at panel joints. Where air and vapour control layer (AVCL) membranes are notoriously difficult to seal, SmartPly VapAirTight offers excellent seal adherence to prevent air leaks, condensation and structural damage.
Manufactured from FSC-certified timber to the specification detailed in BS EN 300:2006, the rigid panel is a sustainable, robust and cost-effective alternative to specialist AVCL membranes.