Hi, I have removed the plasterboard ceiling to install new materials for better sound insulation. I am planning to install Rockwool between the wooden joists, then Tecsound50 sound barrier mat, then resilient bars with 15 mm sound resistant plasterboard.
I wanted to add 100 mm thick Rockwool for better insulation but the electric cable drilling through the joists is 5 mm from the bottom of the joists. Shall I install two layers of 5 mm Rockwool and sandwich the cable in between or just I install 5 mm thick Rockwool so the cable lays on top?
Any other idea on how to better insulate between the joists?
I wanted to add 100 mm thick Rockwool for better insulation but the electric cable drilling through the joists is 5 mm from the bottom of the joists. Shall I install two layers of 5 mm Rockwool and sandwich the cable in between or just I install 5 mm thick Rockwool so the cable lays on top?
Any other idea on how to better insulate between the joists?