Using/fixing high desity fibreglass sound insulation?

The_Pedant

I have a bit of a problem with thin walls and a partially deaf neighbour, as a result, I can often hear their TV and sometimes even hear them talking/shouting. So, I've been contemplating removing the internal plasterboard on the dividing wall and replacing it with some sound insulation in-between. I'm in the process of taking off some of the internal plasterboard in the room anyway to improve thermal insulation (I have a dormer window with a timber frame and approx 8mm of insulation in the wall presently).

For a cheap solution I was looking at the high density fibreglass insulation that Wickes sell: http://www.wickes.co.uk/Heavy-Density-Insulation/invt/161189

The only uncertainty I have is how to secure plasterboard over the top of the insulation. I wanted to try and steer clear of battens attached to the wall as these would be a direct transmission route for sound again.

Any thoughts?

Cheers.

amcluesent

>For a cheap solution...<

Cheap wont't do much. Once you've removed the plasterboard, you'll need to find and seal any gap which would allow noise transmission. Then pack the frames with insulation.

On your side, you'll need a double layer of sound-blocking plasterboard, with one layer boarded horizontally and the other vertically. Ideally, these would be attached to a floating-frame, but that means losing 6cm of your room dimensions. Again, all gaps will need sealing with flexible sealant before redecorationg.