Browse Forums Renovation + Home Improvement 1 Mar 04, 2017 11:18 am Hi everyone, I've been doing a bit of research on sound proofing products but I don't know anyone who has used them to know if they will work, are value for money etc. So I'm hoping you might be able to help me out. So the situation is that currently my bedroom (which will later become my 20yr old daughter's bedroom when our other renovations are complete) has an adjoining wall with the studio flat (granny flat) that we rent out for holiday rentals. Due to the layout of wardrobe, door, window etc the bed has to butt against this adjoining wall. On the other side of this wall, again due to layout of kitchen, doors, bathroom etc the bed also has to butt against this same adjoining walll. Currently I have a lovely older gentleman staying medium term and I can hear him snoring through the wall at night. I also don't use the TV in my bedroom in case the noise disturbs him. Even though he will probably have left before my 20 yr old ends up in this room, I am very aware that I can't expect her to not watch her TV and who knows who might stay in the studio in future so I really want to sound proof it. I'm happy to remove the plaster on my side and replace with something else or put something inside the wall cavity. I have also come across these products which can be retro fitted on top of the existing plasterboard. Just wondered if anyone has used them or had any other recommendations? http://www.soundblock.com.au/soundproof ... rrierboard http://www.acoustiblokau.com.au/ Any other suggestions? I'm renovating the rest of my house and will be putting my kitchen abutting the studio flat's bathroom and kitchen so not sure if I should also be looking at putting some form of sound proofing there too? Thanks Re: Sound proofing between granny flat and house 2Mar 06, 2017 3:32 pm what is the wall construction- just gyprock? If its a proper studio (ie a separate dwelling) then the wall should be fire rated. If its just a gyprock wall, a cheap and ok option is to remove the cornice & skirting boards and then glue another sheet of gyprock soundchek onto the wall with acoustic adhesive- this is highly effective: http://www.greengluecompany.com/ For a better outcome- remove the sheeting from one side & build new studs that don't touch the others (offset), then sheet that in soundchek, then green glue, then another sheet of soundchek. Stopping the wall surfaces in each dwelling from being connected would make a huge difference, particularly with low frequency sounds. Re: Sound proofing between granny flat and house 3Mar 07, 2017 8:10 am Hi, yes it's just normal plasterboard and I doubt there is even any insulation in there at the moment. The room was originally a master bedroom (hence it having it's own bathroom) and we removed the built in wardrobe and installed a kitchenette in that cavity. It was part of an addition which was added to the house about 10 years before I purchased it and I moved here 10 years ago (so it's about 20 years old). It is 3.5m x 4.8m with the long wall being the adjoining wall. I'm also wondering if replacing it's internal door with a solid wood one would also be worthwhile? It's currently just a standard internal door - hollow. It is kept deadbolted so guests can't actually access the house and they have their own entrance via sliding glass doors to their own private paved area and yard and through a gate out to their parking space. In future it might become a master bedroom again so obviously anything I do to it needs to be practical in terms of it being able to revert to it's original use in the future. Have you used the soundcheck and has it actually made a lot of difference? Thanks Re: Sound proofing between granny flat and house 4Mar 07, 2017 12:16 pm Yes, soundchek (or just extra layers of gyprock) is effective. The stats on how effective are published- its good at high freguency, less good at low frequency (hence the green glue...). If the space has a door then yes, swap it for a solid core unit and make sure it fits properly in the jamb (no gaps) and block up the gap at the bottom- that will leak LOTS of noise. If you resheet, I would sheet over the door(it could be unsheeted in future). Re: Sound proofing between granny flat and house 5Mar 07, 2017 1:27 pm The door is not on that wall (it's a 4.8 metre straight wall with no windows or doors etc), however both the adjoining bedroom and the studio have doors opening onto a hallway right beside the adjoining wall - so literally their respective openings are about a foot from each other. hi guys. Please be nice. First time home builder in Qld. 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