Composite sheet for building

The utility model discloses a composite sheet for building, including the bottom plate, be provided with the fibrous layer on the bottom plate, be provided with first non -woven fabrics on the fibrous layer, be provided with heat preservation buffer structure between first non -woven fabrics and the second non -woven fabrics, be provided with the decorative layer on the second non -woven fabrics, the upper end and the lower extreme of decorative layer and bottom plate form public oral area and female oral area respectively, and the left side and the right side of composite bed are provided with left polyurethane banding and right polyurethane banding respectively, and the upside and the downside of composite bed are provided with polyurethane banding and lower polyurethane banding respectively. The utility model discloses well composite bed all around all be provided with the polyurethane banding, can realize sealed completely to the core, shock resistance has been improved on the strengthening rib layer simultaneously, the fibrous layer plays the shock attenuation cushioning effect, the non -woven fabrics has improved fire behaviour, in addition, through the air current buffers that form, the thermal -insulated and noise proof effect of secondary has been played between first heated board and the second heated board.