dave21478 Posted February 3, 2011 Share Posted February 3, 2011 I am scratch-building a bathroom in another room, and am doing the separation with rails and plasterboard. What would be the best insulation medium to put in the wall to prevent sounds traveling? I don't want thunderous farting noises echoing through the next room when someone uses the chunty.There is plenty room to double up the thickness of the partition wall if required. Link to comment Share on other sites More sharing options...
just john Posted February 3, 2011 Share Posted February 3, 2011 Use Tileboard not plasterboard on the inside, use celotex foam sheets internally, cut to fit spaces in wall, then use 12.5 or better doubleboarded 9.5mm plasterboard. on external walls. Link to comment Share on other sites More sharing options...
Chancer Posted February 3, 2011 Share Posted February 3, 2011 If you can double up the thickness as opposed to double boarding then there is a way where the montants are back to back but the walls are effectively decoupled acoustically from each other, I am sure that the info is on the British Gypsum website but if not repost and I will didg out my French placo book.If you really want to create a sound effect free zone so you or your guests can push away to their hearts content without worrying about pooting noises escaping then you need to consider a door with some form of acoustic sealing between it and the frame. Link to comment Share on other sites More sharing options...
HoneySuckleDreams Posted February 3, 2011 Share Posted February 3, 2011 [quote user="just john "]Use Tileboard not plasterboard on the inside, use celotex foam sheets internally, cut to fit spaces in wall, then use 12.5 or better doubleboarded 9.5mm plasterboard. on external walls. [/quote] Can you get Celotex or equivalent here? I used it extensively in the UK but I have not seen it here. Plus...I remember it was expensive and I have about 100m2 of wall to build and insulate Link to comment Share on other sites More sharing options...
BIG MAC Posted February 3, 2011 Share Posted February 3, 2011 Accoustic panels like standox boards under the plasterboard and glass fibre wool in the void Link to comment Share on other sites More sharing options...
dave21478 Posted February 3, 2011 Author Share Posted February 3, 2011 I have never seen Celotex for sale here. I have a load of hydrofuge plasterboard that needs used, so that will be the internal surface which will be tiled over, I reckon.Chancer, my thoughts were to double up the rails on the partition, but not actually fix the two layers together leaving a small gap to prevent sounds propagating through the frames. This would allow me to fit twice the normal thickness of glass wool insulation in the void, then regular plaster board on the outermost surface. Its not just noise from crapper use, but the falling water in a shower makes a hellish racket too. My sisters house has a poorly insulated bathroom and not only can you tell if the person on the chunty gets enough fibre in their diet, but anyone having a shower causes a thundering waterfall noise in the next room too.Just been flicking through a Bricoepot catalogue and noticed the plasterboard sheeting with a layer of polystyrene bonded on the back....if I did a normal single partition wall and bonded this stuff on the outside, would that be any better than my own idea? Its a hellish price though - would probably be cheaper with my own idea of doubling the rails. Link to comment Share on other sites More sharing options...
crossy67 Posted February 3, 2011 Share Posted February 3, 2011 I can't believe what I am reading here.I didn't think any one here shared my sense of humour lol. You could always try BOSE noise cancelling headphones. Or make sure there is enough toilet paper to provide a landing pad, if you know what I mean?[8-|] Link to comment Share on other sites More sharing options...
Théière Posted February 3, 2011 Share Posted February 3, 2011 Celotex is not available in France and in any case a bad sound insulator compared to wool based products (laine de roche & laine de verre). There are sound deadening foam pads available in Brico depot page 210 and also a foam acoustic in their tile section page 157. The best sound deadening is achieved using two different densities of insulation to further decouple, so using a sandwich effect will work best. Link to comment Share on other sites More sharing options...
La Guerriere Posted February 4, 2011 Share Posted February 4, 2011 Look for Lafarge Preglypac dB BA13 accoustic plasterboard or Placo Phonique Renomince. Link to comment Share on other sites More sharing options...
Théière Posted February 4, 2011 Share Posted February 4, 2011 [quote user="La Guerriere"]Look for Lafarge Preglypac dB BA13 accoustic plasterboard or Placo Phonique Renomince.[/quote]In a bathroom?[quote user="dave21478"]I am scratch-building a bathroom in another room, and am doing the separation with rails and plasterboard. What would be the best insulation medium to put in the wall to prevent sounds traveling? I don't want thunderous farting noises echoing through the next room when someone uses the chunty.There is plenty room to double up the thickness of the partition wall if required.[/quote] Link to comment Share on other sites More sharing options...
La Guerriere Posted February 4, 2011 Share Posted February 4, 2011 I think that the Lafarge one is available in a hydro version Link to comment Share on other sites More sharing options...
just john Posted February 4, 2011 Share Posted February 4, 2011 [quote user="just john "] B&Q=sheeps_wool 1 cu metre £77 Celotex-laminated foam 1 cu metre £63.75 usual disclaimers etc.[/quote][quote user="Théière"] The houses that I have had to remove rock wool and glass fibre from have not been nice plumped up fibres but usually slightly compressed or slumped due to a combination of damp and natural ageing so although it maybe good insulation when fitted it is unlikely to stay that way. Also from the document below is the fact that the thickness of rock wool or glass fibre are so thick currently 240mm (France) 270mm (UK) and that would need to increase to 400mm (UK) by 2020. The only wool type insulation that can actually perform wet is sheeps wool. That leaves us with PIR foam or polystyrene in either form although apparently Styrofoam (Dow corning) out performs both and these can be used in reasonable thickness. [/quote]To quote from a previous thread, Celotex or foam is more cost-effective than sheeps wool for example and doesn't go manky when the bathroom gets flooded etc.Supply is a problem, but if it's worth getting a pallet with an engine shipped over I'd do the same for the bathroom. In fact I do, having bought a van for the purpose of obtaining the unobtainable, guilty though I feel sometimes that's what the EU is all about. When the spec or price doesn't fit, or I don't want to wait 10 days for them to order it in, I plan materials required and bring them over, the only other comment I'd add is that generally I like my bathroom to be well insulated too, so that it can be heated by just a decent towel rail.[:D] Link to comment Share on other sites More sharing options...
Théière Posted February 4, 2011 Share Posted February 4, 2011 Yep [:)] don't flood your bathroom or no one will hear you scream [:D] The French version/collaberation with Kingspan is Reticel which is available in france (dunno what cost though) Link to comment Share on other sites More sharing options...
HoneySuckleDreams Posted February 8, 2011 Share Posted February 8, 2011 this months copy of Maison&Travaux (No 230) has an article on how to insulate the partition wall between a bedroom and bathroom.They use a product called << Placo® Phonique Rénomince® >> Link to comment Share on other sites More sharing options...
Ian Posted February 11, 2011 Share Posted February 11, 2011 What I've seen recommended in the past is A. Double layers of placo each side, with the joins offsetORB. Each wall of placo on its own rail system, with the two systems not touching. Might be a problem with rigidity, though - the method was originally designed for use with a wooden stud wall.In both cases, fill the gap between with insulation.Cheers Link to comment Share on other sites More sharing options...
Gardener Posted February 13, 2011 Share Posted February 13, 2011 Any suggestions what I can put on existing bathroom walls (not tiled) to muffle the sounds a bit? The downstairs bathroom is currently empty of fittings except for the toilet and is awaiting doing up. It is a small bathroom, so I don't want to lose too much space by adding thick plasterboard and battens. A better door will probably help a lot. Link to comment Share on other sites More sharing options...
Ian Posted February 13, 2011 Share Posted February 13, 2011 According to the figures I have, a second layer of 12.5mm placo each side is supposed to cut sound by 7-8 decibels. Not insignificant.That, plus a better fitting door, should give you best results for least effort/money/intrusion.Good luck Link to comment Share on other sites More sharing options...
Gardener Posted February 13, 2011 Share Posted February 13, 2011 ThanksDo you know if it is possible to get the type that can be glued to the walls in France? Link to comment Share on other sites More sharing options...
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