Acoustic ceiling solutions? Suspended? Sound insulation?

[theflyingpig]

hi all,

The shop I am renovating (read, rebuilding) has a flat above that I don't own (I have the freehold and the flat is on a long lease). I currently have the shop stripped back to bricks and joists. Soon it will be time to board the ceilings (with TWO layers of fireboard according to Building Control).

Before I do this I want/have to insulate. The flat upstairs has many creaking floorboards, and the tenants are none to quiet. Can anyone suggest any ways forward?

I don't have alot of height to play with so having a fully suspended ceiling is not really an option . . .someone mentioned something called an MK system?, sounded ideal (a metal bracket that held the plasterboard away from the joist a little) but I can't find it on the internet . . .

What type of insulation should I be looking at?

Help!

thanks !

Huey

 

[chappers]

You want the dense accoustic rockwool that comes in blocks rather than on a roll and the bars you are looking for are called resilliant bars, do a search for them and it should throw the right things up.

 

[ajrobb]

You want the dense accoustic rockwool that comes in blocks rather than on a roll and the bars you are looking for are called resilliant bars, do a search for them and it should throw the right things up.

Yes, that is probably all the you can do. The other part of the acoustic treatment would be to the floor in the flat to reduce impact noise. However, it sounds like that won't be possible. As the freeholder, you might be able to force the upgrade to current regulations on the leaseholder. It could be worth checking.

http://www.british-gypsum.com/pdf/SB07_GypFloor SILENT_02.pdf

I think you must seal the edges with intumescent acoustic sealer. The requirement for 2 layers of plasterboard sounds like a 60 minute fire rating, suggesting there are inadequate escape routes in the flat above.