After reviewing many sound insulation materials, the insulation rock wool board in sandwich panel for temporary house on the construction site and is a very good sound insulation material.

     Raw material of insulation rock wool board is rock wool or slag wool. It has good sound insulation and sound absorption performance.
     Sound absorption principle of insulation rock wool board is in its structure. The porous structure of insulation rock wool board absorbs sound wave and hinders the transmission of sound wave.