OSB Airstop

OSB Airstop core is OSB Superfinish described by EN 300 standard as OSB/3 type (load-bearing board for use in humid conditions). It is formed by a special press with high temperature and a phenol-based film applied on the unsanded OSB board. It reduces the differences in the boards’ heterogeneity therefore giving the precise defined values of airtightness and vapor resistance. In the diffusion-open structure this allows for installation of reinforced sheathing, airtight barrier and vapor check at once. OSB focuses closely on the needs of current construction trends of modern low-energy and, in particular, passive wooden houses which have higher requirements for airtightness of external building envelope.


- Environmentally friendly and Recyclable
- Simple processing with conventional woodworking tools


- Load-bearing wall sheathing


EN 300 - type OSB 3; EN 13501-1: class D-s1, d0; EN 13986:2004+A1:2015

Emission Class

E1 (EN 120)

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  • OSB Airstop
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