I have a plaster/lathe kitchen ceiling. I wanted to install a nail-up tin ceiling, center room ceiling fan and insulate, if possible without tearing down the plaster. My thinking was to go right over the plaster with some kind of insulation, then 3/8 Plytanium plywood & nail tin straight to it. But then I have the electical issue...
What do ya think? Keep the plaster ceiling or lose it?
Thx
Tom
COMMUNITY FORUM
Building codes will not allow you to:
A) Use any type of rigid foam insulation placed directly over plaster that is not
B)Covered over by at least a 1 hour burn protected drywall or plaster.
Plywood will not meet the fire prevention requirements.
Your possible solutions are to:
1)Rip down the plaster and lath and insulate and wire as needed...then drywall or replaster
2)Possibly blow in some cellulose while still maintaining the structural as well as fire characteristics of the existing ceiling
3)Install rigid foam over the existing plaster, wire, than install drywall or new plaster on top of that.
A) Use any type of rigid foam insulation placed directly over plaster that is not
B)Covered over by at least a 1 hour burn protected drywall or plaster.
Plywood will not meet the fire prevention requirements.
Your possible solutions are to:
1)Rip down the plaster and lath and insulate and wire as needed...then drywall or replaster
2)Possibly blow in some cellulose while still maintaining the structural as well as fire characteristics of the existing ceiling
3)Install rigid foam over the existing plaster, wire, than install drywall or new plaster on top of that.
