Help with apartment home studio build in Brazil

Soundman2020 wrote:

So when you measure the room height, please give the measurement form the floor to the BOTTOM edge of the concrete webs, and also all the way up to the top of the wells between the webs.

Hello there! Just another quick update, I've emptied the room and begun the construction adjustments. First take off the drop ceiling to measure the cob webs. From floor to bottom edge 2,60m From floor to top edge 2,90m Next step will fill those cavities with 32kg/m3 RockWool and hold them in place with with a thin wire mesh I had lying around. After that I will have to deal with the gaps between the existing walls and the ceiling which you can see on this image: After the combs are filled then I need to decide if will leave as it is and just create a frame to cover with fabric or Barrisol and have all the ceiling be like a huge trap. or put some resilient channels and 2 sheets of drywall glued with green glue to help with isolation? I guess not since it won't matter doing this to the ceiling if the walls are not isolated vibration will be transmitted inevitably ? So many questions! :?

Update on progress. Partition wall for the closet. Begin double layer insulation (50+50mm rock wool) on the combs .

Next step will fill those cavities with 32kg/m3 RockWool and hold them in place with with a thin wire mesh I had lying around.

Excellent! That's a great bass trap / diffuser up there. It should work well. Fill in those cavities with as much insulation as you can.

After the combs are filled then I need to decide if will leave as it is and just create a frame to cover with fabric or Barrisol and have all the ceiling be like a huge trap.

Yes! definitely! if you are already getting enough isolation for your room, then make the most of that "grid" up there for treatment. Keep your acoustic ceiling high, with good bass trapping and diffusion.

or put some resilient channels and 2 sheets of drywall glued with green glue to help with isolation?

I would try to avoid that. What you have up there is obviously some pretty sturdy concrete structure, so it should be giving you good isolation up there already. I would only hang a decoupled ceiling from it if it turns out that there is flanking noise in the concrete itself. Hopefully there isn't.

I guess not since it won't matter doing this to the ceiling if the walls are not isolated vibration will be transmitted inevitably ?

So make sure your walls are well isolated! :) - Stuart -

[SPAMMER BANNED AND BLOCKED] Thanks for sharing this information:) [SPAMMER BANNED AND BLOCKED]

Thanks for getting yourself banned forever! :)

Informative thread..!!!

Curious how you went with the soffit mounting the Event Opals @diogodasilva How did they sound? Any tips you learnt building something around them?