First time here. Sorry about my ignorance.
I'm building a HT as a room-in-room solution in a basement with existing "light concrete" (Leca blocks) walls. Because of this, I'm not able to use rock sheet on both sides of the studs. Is the attached solution usable or a waste of time/space/money. The same solution could be applied to both the ceiling and the walls. Has this been tried before?
I apologize if this question has been raised before, but I don't know how to search for a thing like this...
(On the picture below, the lower side is against the HT)
Sheetrock between the studs a usable approach?
Originally posted at johnlsayers.com, topic 9720.
Rune,
I would not place the drywall directly against the concrete - but would rather bring it to the HT side of the wall - keep the framing at least one inch free of the masonry.
The above approach is a good one for the floor above - but don't leave a space between the drywall and the decking - install it tightly against the existing.
Rod
Sorry about the unclear explanation, but the illustration shows the wall seen from above. The mention the ceiling was stupid, but I meant to ask if this method could also be applied to the ceiling. After I posted I realized that I can't do this in my ceiling because the floor beams (from the room above) and the ceiling beams will "interlace".Rune, I would not place the drywall directly against the concrete - but would rather bring it to the HT side of the wall - keep the framing at least one inch free of the masonry. The above approach is a good one for the floor above - but don't leave a space between the drywall and the decking - install it tightly against the existing. Rod
Rune. I knew exactly whatI was looking at - and still say that you do not want to place drywall adjacent to the concrete as illustraed - add it to the inside if you need more isolation. If you can't do it in your ceiling - then doing it in your wall probably wouldn't make sense - the ceiling / floor then becomes your weak point - and that is the value of isolation - your weakest points shall prevail. Add resilient channel to the bottom of the floor joist to isolate the drywall from the floor above. Sincerely, RodSorry about the unclear explanation, but the illustration shows the wall seen from above. The mention the ceiling was stupid, but I meant to ask if this method could also be applied to the ceiling. After I posted I realized that I can't do this in my ceiling because the floor beams (from the room above) and the ceiling beams will "interlace".
Ok. I guess it was your line "I would not place the drywall directly against the concrete" that made me think there was some misunderstanding, as I had planned for no such thing. The inner wall is to be a few inches away from the concrete wall (room in room).
When you write "adjacent" I see it clearer.
So, basically, a third layer of drywall on the HT-side would make much more sense?
Perhaps build your wall frames on the floor, fix gypsum to the outside face of the wall frames, then lift up into position.
Do a search for "insideout".
There may be moisture issues so close to concrete walls/floor in a basement though(?)
Geoff.
Yeah, that could have been done, I guess. But after reading more about sound insulation, I'm not sure having drywall close to the concrete walls is a good idea at all...Perhaps build your wall frames on the floor, fix gypsum to the outside face of the wall frames, then lift up into position. Do a search for "insideout". There may be moisture issues so close to concrete walls/floor in a basement though(?) Geoff.
RuneW - glad to see you made it over here from AVS :D. I would definitely listen to Rod...his advice is golden.
I second that Rune. He's on what your trying to achieve.RuneW - glad to see you made it over here from AVS :D. I would definitely listen to Rod...his advice is golden.