Hello,

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.

Thanks,

Teabird

teabird wrote:

Hello,

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.

Thanks,

Teabird


Resilient channel for sound deadening.

More info here than you'll ever need:

http://www.usg.com/rc/system-catalog...s-en-SA200.pdf

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
increase.

On Apr 23, 6:24*pm, "Bob(but not THAT Bob)"
wrote:
teabird wrote:

Hello,

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.

Thanks,

Teabird

Resilient channel for sound deadening.

More info here than you'll ever need:

http://www.usg.com/rc/system-catalog...s-en-SA200.pdf

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
increase.- Hide quoted text -

- Show quoted text -

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.

On Apr 24, 6:34*am, Mikepier wrote:
On Apr 23, 6:24*pm, "Bob(but not THAT Bob)"
wrote:





teabird wrote:

Hello,

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.

Thanks,

Teabird

Resilient channel for sound deadening.

More info here than you'll ever need:

http://www.usg.com/rc/system-catalog...s-en-SA200.pdf

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
increase.- Hide quoted text -

- Show quoted text -

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.- Hide quoted text -

- Show quoted text -

yep sound deadening, can be used in combination with sound deadening
drywall and sound deadening insulation....

On Apr 24, 6:47*am, bob haller wrote:
On Apr 24, 6:34*am, Mikepier wrote:



On Apr 23, 6:24*pm, "Bob(but not THAT Bob)"
wrote:

teabird wrote:

Hello,

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.

Thanks,

Teabird

Resilient channel for sound deadening.

More info here than you'll ever need:

http://www.usg.com/rc/system-catalog...s-en-SA200.pdf

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
increase.- Hide quoted text -

- Show quoted text -

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.- Hide quoted text -

- Show quoted text -

yep sound deadening, can be used in combination with sound deadening
drywall and sound deadening insulation....

Thanks to everyone. It makes sense, this used to be a fraternity
house!

T