6 inch ceiling cavity - fill with what to cancel out some noise?

shaank · 19 Apr 2016 at 12:56

As the title really - block of flats, circa 6" ceiling cavity between the ceiling in the bedrooms where spot lights are fitted into, and then the structure on top... obviously this space has some cabling for the lights but nothing else.

Can it be filled with any material easily to help reduce sound from above? If so - what?

Cheers!

kefkef · 19 Apr 2016 at 13:07

Acoustic Insulation. Rockwool do a couple of products. I've got it with my new extension, hasn't completely sorted the transfer of noise, but is way better than an empty void between the ground floor and bedroom above.

divuk83 · 19 Apr 2016 at 13:26

Check if the down lights need some space leaving around them as many kick out a fair bit of heat.

Dave

Hyburnate · 19 Apr 2016 at 13:27

As above, especially if they're halogen downlighters.

bitslice · 19 Apr 2016 at 14:46

Address the holes first, they will be letting in most of the sound.

I did toy with the idea of an 8" box made of plasterboard above each spotlight, mainly for fireprooofing and sealing out the spiders, but it would help with sound penetration too.
Depends on your access as you'd be doing this from below?

Most DIY sheds sell the acoustic slabs.

shaank · 25 Apr 2016 at 18:17

thank you denizens of home and garden forum

I'll look into some rockwool.

ANDARIAL · 25 Apr 2016 at 21:12

did toy with the idea of an 8" box made of plasterboard above each spotlight

You can get specialist covers that are fireproof now
Sort of like a fireproof sock
http://www.lumalighting.co.uk/Lamp+...wxwLww78ZWZ955EHP4z_56VYCs4OMyIbJMhoCGJXw_wcB