FIELD: construction.
SUBSTANCE: wood-cement board with decorative relief on face surface is made of mixture of hydraulic material, material on the basis of silicic acid and wood reinforcing material. Distance from tops of relief ledges to back surface makes at least 3 mm. Distance from tops of relief ledges to bottom of indents makes at least 2 mm and not more than half of distance from tops of ledges to back surface. Average specific weight of board along the whole area and specific weight of board in areas of ledges and indents makes at least 1.1 N/m3. Difference of specific weight in areas of ledges and indents makes less than 0.1 N/m3.
EFFECT: development of wood-cement board with deep relief on face surface visible at the sharp angle, protected against formation of cracks in operations of curing with further hardening, drying and transportation.
2 cl, 31 dwg, 1 tbl
