In class A is allowed from 1 to 3 non -flinged knots. But cracks and the presence of tarry pockets are still unacceptable.
Imitation of the beam is mounted in several ways. First — according to a galvanized profile or wooden crate. Another option used more often is the external cladding of the building. In the process, it is advisable to leave a gap of several cm between the surface from the back of the board and the surface under the board. This will serve as ventilation for walls, which will prevent them from decay or deformation, which can form due to humidity. Metal brackets are used as fastenings, which are fixed with the ledges of the boards. Approximately they need up to 10 pieces for each m. sq. You can fix the material both vertically and horizontally. To prevent moisture in the latter case, imitation of the beam is mounted upward. Pine is treated with an antiseptic, varnish or other protective coating.















