This ceiling sound Insulation structure, supported by standard steel keel system, will be less than 50 kg/m² 10-12 mm calcium silicate boards as the baseboard fixing to the steel keel system and the Soundbox Sound Insulation Felt fixing in between, then 10-12 mm gypsum board as the surface board, an effective sandwich structure is easily completed Soundbox Sound-absorbing Wool filling the cavity; staggered installation of the calcium silicate boards and the gypsum boards Sealing the gaps properly with (600 Sound Insulation Glue.
Step 1