Building element and method of manufacturing such element

摘要: An integral structural element having improved sound and/or vibration dampening capacity and being composed of two support plates (1, 2) therebetween spaced layers (3) a viscoelastic material formed by liquid synthetic elastomeric good adhesive properties temperature resistance high enough to stand the rise occuring due internal friction while subjected vibrations. The between said is as strings which are from each other distance 50-500 mm leaving an air space in areas adjacent (3). Each string has thickness 1-5 mm, width 10-50 mm. may, at surface thereof be mounted on base, carry mat natural or felt fibre material, product weight 300-1200 g/m2 3-10