I'm renovating the finished basement in my house and when I remove the
drywall on the ceiling, I find it is attached to strips of aluminum
rather than to the joists directly. The AL strips are nailed directly
to the joists but are shaped to provide about 1/2 inch gap between the
joists and the drywall. Is this used to allow ventilation between the
joist bays? I can't imagine another reason. One other thing, as I
recall, all the AL strips run perpendicular to the joists, and are
also on some walls, horizontally.
Resilient channel for sound deadening.
More info here than you'll ever need:
If this is what you have, you'll need to replace them (assuming you've
ripped the drywall off) or expect a significant noise transmission
Ditto. Sound deadening. When I did my basement , I prefered to go
right to the ceiling joists with the sheetrock to gain as much
headroom as possible. Sound deadening was not really an issue for me
since the basement is used primarily as a rec area for the kids now.
But they do make sound deadening sheetrock now, so you might want to
look into that if you want.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.