SL-1
Facade Boards for Exterior Building Decoration
Suitable for facades, wall cladding, decorative elements, as well as terraces, sheds, and fences.
The material is dried to a moisture content of 16-20%, which helps reduce the risk of cracking and deformation. The boards are planed and calibrated, ensuring a smooth surface and precise dimensions. They are suitable for further processing, such as painting, staining, oiling, varnishing, or wood charring.
Material selection
Spruce
Pine
Available Grades
AB Grade - Good Visual Quality
Knots: Allowed and mostly sound (black knots up to 15 mm).
Cracks: Small cracks along the grain are permissible. On the visible side of the board, cracks up to 10 cm are allowed; on the reverse side, cracks may extend up to 25% of the board length. Cracks must not penetrate through the board.
Resin pockets: Small resin pockets (up to 50 mm) are acceptable.
Colour: Slight variations in shade are acceptable.
Bruising: Minimal and only local.
Defects: Rot and insect damage are not permitted. Through-cracks are allowed only at the ends of the board and must not exceed the width of the board.
BC Grade - Medium Quality Material
Knots: Larger knots are allowed and unlimited in number; some may be loose or missing.
Cracks: Cracks along the grain are permissible (up to 30% of the total board length), as well as through-cracks up to 1 m.
Resin pockets: Acceptable.
Colour: Uneven colour tones are acceptable.
Bruising: Permitted to a greater extent.
Defects: Loose or missing knots, breaks, and mechanical damage are permissible. Small knots affected by rot or insect damage are also allowed.
Surface treatment types
Scraped surface
Smoothly planed surface
Post-processing
Thermo process
Covering paint
Stain paint
Azure paint
Aging processing
