Installing recessed lighting in a plaster ceiling. Cut the first LAYER (drywall) of the first hole. Above the drywall was some lath. I cut that, too. Above that, though, was another level of wood (about two inches about the lath -- nothing but a thin layer of plaster and then air in between). Above this layer (if you're still with me, I'm talking about the wood above the air/plaster that's above the lath that's above the drywall) is a few inches of rock...like rocks you'd find near a river.
As an FYI, my bathroom is right above this area. When I checked the access panel and saw the plumbing and the tub, the area underneath it also had rocks and other stuff. The area I happen to be working on right now, though, is not under the tub.
SO, my questions:
- rocks in ceilings -- normal?
- purpose of rocks in ceilings?
- can I still manage to put in cans?
I know this probably isn't clear, but if some of you can take a crack at it, I'd appreciate it. I can send pictures if necessary.
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