There are many disputes due to the lack of ventilated air gap located in the facades between the OSB-3 plates and the finish.
To create a facade without a ventilation gap requires the highest quality of all work performed when installing SIP panels. It is required to equip everything in such a way that the moisture does not form and does not fall into the joints between the OSB-3 plates and the finish. It is required to be attentive to the installation of vapor barrier from the side of the rooms, as well as the sealing of door and window openings and other joints in the design. In addition, it is strongly recommended to regularly inspect the OSB casing places, which are at the greatest risk of moisturizing. The same advice is applicable to the roof.
The function of the ventilation gap located between the OSB-3 and the finish is the possibility of the rapid drying of the moisture. This process prevents the rotting of wood, which forms the basis of OSB plates. This is the main reason why masters recommend using ventilation gaps in facade systems. In addition, they are highly reliable and unpretentious.