Looking for any advice!
The wall between my kids bedrooms is part brick, and part hollow stud wall (about a doorway’s width stud wall). Their beds are directly either side of this stud wall and you can clearly hear talking and conversation through the wall - it’s annoying when reading a story to one, and the other is trying to go to sleep for instance.
We are about to redecorate, and we wanted to improve the sound insulation.
A decorator was going to sort it all for us, but he had to cancel very last minute (an hour after he was due to turn up!) as he is very ill. Argh but fine. We are trying to get on with all the decorating ourselves, but don’t know how to go about the sound insulation part.
I think the plan was to put a layer of new insulated plasterboard over the top of the wall on one side (can’t do it on the other for various reasons). But I’m worried that if we don’t fill in the hollow stud cavity with mineral wool or similar, it will make the insulation much less effective (been anxiously googling!). And doing this is going to be harder than just sticking new insulation over the top as it will damage the surface we’d be attaching the new insulation to.
We’d get someone in - but not quite sure who to ask, and of course nobody is likely to be free at short notice.
Any advice welcomed - is it something an inexperienced diy-er can attempt? can we get away without bashing a hole in the existing hollow stud wall to fill with additional insulation?