Author Topic: Soundproofing Bedroom - My Solution - Thoughts and Critic Wanted  (Read 3642 times)


  • Guest
    Hi. I’m based in the UK (plasterboard = drywall etc…), have basic DIY knowledge and hoping to do some soundproofing on my upstairs bedroom.  I’m here to get some validation and possible other ideas about how to best address my noise issues.

    Here’s a plan of upstairs bedroom, all dimensions in centimeters.

For lager image please use this link

Noise Nuisance that I hope to in some way address

Ordered by most nuisance noise first

•   Impact Noise - Neighbors going up and down the stairs  – Source Neighbors house, stairs adjacent wall
•   Impact Noise - Opening and closing draws and cupboards can be heard, kitchen noise – Source Neighbors house
•   Airborne Noise - TV - Source Kids room
•   Impact Noise - Heavy draws opening and closing - Source Kids room

•   Replace door with a heaver solid core door.[/li][/list]

•   Acoustic Sealant on Floor Boards
•   2mm Soundproofing Mat (
•   Tredaire Colours Red Underlay - 11mm thick (
•   Thick Saxon Weave Carpet - 17mm
•   (Optional) Instead of underlay use quiet floor plus underlay system (

•   Erect new stud wall againt party neighbours and wall adjacent kids room
•   Fill with Knauf Earthwool Acoustic Roll (
•   Resilent bars (
•   Gyproc Soundbloc Plaster Board (Drywall) 15mm
•   (Optional) Layer of Green Glue and another staggered Gyproc Soundbloc 10mm
•   Extend and sound proof electric socket using port putty (
•   Seal EVERYTHING with acoustic sealant

•   Any off cuts of insulation I’ll shove in the attic

•   Should I use Earthwool Acoustic Roll or Rocksilk Flexible Slab (or similar products).  I’ve heard that in the while the Rocksilk Flexible Slab is flexible as its name suggests, but people say should go with an even more flexible insulation for noise cancellation such as the Earthwool Acoustic Roll.
•   Should I use 2 sheets of staggered plaster board with green glue in-between right off the bat? This increases cost, but if I don’t do it first time around it’s unlikely that I will do it.
•   The system for attaching the plaster board is important, with different systems like Genie Clips. I’m going for Resilent bars seems like it’s not the best, but it is simple and fairly reasonably priced and does decouple to an extent.  Is this worth investing in another system?
•   Any feedback on my solution would be appreciated.

I’m hoping I can get a better nights sleep after these changes

Randy S

  • Guest
Re: Soundproofing Bedroom - My Solution - Thoughts and Critic Wanted
« Reply #1 on: October 15, 2014, 08:09:25 PM »
Your idea is very close to achieving a viable reduction.

Basics:  use the earthwool for the insulation .
Make sure every system you do is air tight water tight sealed with acoustical caulk.

USE top of the link isolation clips with hat channel !!! do not do all this work with resilient channel you will not get go enough reductions for all the effort your putting in.
better than genie clips..

use 2 layer of sheet rock with green glue and make sure you leave the 1/4" gap around the perimeter for each layer and fill with acoustic caulk.. do not tape and mud the perimeter, finish it wet and paint only.
if you want to hide it use crown molding but do not make contact to the ceiling and fill gap with acoustic caulk.
When your dealing with structural impact it is always best to reduce from the source if possible.

Randy S.


  • Guest
Re: Soundproofing Bedroom - My Solution - Thoughts and Critic Wanted
« Reply #2 on: November 01, 2014, 03:48:27 PM »
Thanks for the reply, I'll be sure to seal it as air tight as possible

I would like to use isolation clips with a hat channel, but I have been unable to find a UK supplier.

I have spoken to another specialist about this solution, he says that adding a second layer of dry wall will not help very much with impact noise, which is the noise type I'm most trying to address.

He said just to do one layer of dry wall to begin with as adding additional layers will only really help airborne noise, do you agree?

Randy S

  • Guest
Re: Soundproofing Bedroom - My Solution - Thoughts and Critic Wanted
« Reply #3 on: November 04, 2014, 06:10:24 PM »
as long as you decouple with clips then the second layer of drywall will contribute to controlling the noise with in the cavity.

remember that impact noise is both structural and ambient... the cavity remits impact as airborne.

You can always do 1 layer and assess then add the second layer to improve.

Randy S.