Browse Forums Renovation + Home Improvement 1 Jun 13, 2012 12:27 am Hi, I am restoring an old room with a brick construction from the 1920s (double-brick, no cavity). It is currently lined with some plywood laminate on 20mm battens. I intend to install an internal lining wall, of 90mm timber frame with insulation and lined in 10mm plasterboard (or maybe 2 layers of 10mm). The purpose is to get some thermal insulation and noise insulation, as the room is close to the road. The question is how to best fix this internal wall to the structure? I'd like to minimise noise transfer by isolating it from the external brick wall. I could fix it only to the floor and to the ceiling/roofing joists, but it would be stiffer it was fixed to the brick wall also. I will also need to redo the ceiling as that is in poor condition and un-insulated. The floor of the room is suspended floorboards on joists, and is not very strong, so I have doubts about adding to the floor load by building the internal lining wall. Thanks, Andy Re: Add an internal stud wall to brick for insulation 2Jun 13, 2012 5:06 am Top and bottom fixing will be fine, wall will not be load bearing so you will have no worries with floor issues (think of it as a partion wall) Use soundcheck plaster board Landscape Design & Construction http://cherub.squarespace.com/ Re: Add an internal stud wall to brick for insulation 3Jun 13, 2012 3:56 pm Provided your bottom plate sits across floor joists and you fix the top plate to the ceiling joists that part should be OK You seem worried about possible flexing of the wall, but as internal walls arent stiffened, I cant see the point Arfur Re: Add an internal stud wall to brick for insulation 4Jun 13, 2012 4:28 pm Even if perpendicular to floor joist partition wall would be fine Landscape Design & Construction http://cherub.squarespace.com/ Re: Add an internal stud wall to brick for insulation 5Jun 13, 2012 6:34 pm Thanks for your responses, guys. My concern about stiffness was only that this is a high ceiling (11'6" or 3.5M) and a long wall for about 5+ metres, so I did not want the partition wall to feel flimsy and lightwight and have a low quality "feel" if it is not well anchored to the brick wall. I'll have some noggins, but thought maybe I should connect it to the wall in a few places to stiffen it up? Also is it good to have a 50mm air gap between the brick wall and the internal partition, in addition to the 90mm of insulation? Andy Re: Add an internal stud wall to brick for insulation 6Jun 13, 2012 6:45 pm Put in two rows of noggins. If you can, have a void as a space is a good insulator of sound Landscape Design & Construction http://cherub.squarespace.com/ Sorry, don't know costs, but there are a couple of very important principles you need to get right (and now) .... (1) never agree to any "upgrade" unless you first know… 5 6838 Thank you alexp79 and gommeqld for your advice, that's very helpful, thanks 3 7934 3 10199 |