[topcat6]

With very little persuasion a couple of large areas of plaster are ready to fall off the lath on a ceiling. I would like to just remove those sections reveiling the joist above. Then use 3/8" rock over the entire room?

[BuilderBrent]

Not exactly sure what the question is, but I can tell you that 3/8" sheetrock will be a big mistake. Codes require 5/8" for fire resistance and will be much less likely to sag over time.

Aside from that. It sounds like a worthwhile project but a heck of a lot of work. There's a lot involved these older houses.

[topcat6]

Not exactly sure what the question is, but I can tell you that 3/8" sheetrock will be a big mistake. Codes require 5/8" for fire resistance and will be much less likely to sag over time.

Aside from that. It sounds like a worthwhile project but a heck of a lot of work. There's a lot involved these older houses.

I really don't wish to remove all the plaster from the lath and or the lath too. I would like to just remove the loose sections reveiling the joist layout. Then I could cover it with some rock. This is a ceiling and your sugestetion would still be 5/8 inch rock?

[BuilderBrent]

I see what your saying. That being the case. Yes, 3/8 drywall should be fine. Keep in mind that you will want to use drywall adhesive and I would suggest using longer screws and more screws. You will notice that it is very easy to over drive the screws in 3/8"

You will probably find that your ceiling "rolls" or bows a little bit too. The thinner drywall will actually be to your advantage in that case, given it's more flexible.

Since most older homes have higher ceilings and rooms tend to echo (especially if you have hardwood floors too) Another alternative might be to put in a drop ceiling. This will knock down some of the sound and still give you a clean look.

[mtconc]

If you only want to do a section.. maybe "big wally's" is the way to go... they sell a repair kit for plaster walls & ceilings.. good luck!

[topcat6]

if you only want to do a section..maybe "big wally's" is the way to go...they sell a repair kit for plaster walls & ceilings..good luck!!

Problem with that is you repair a section today and next month another section starts to fall off. I've found out from past experience that to do a job is to do it in such a fashion
That you don't have to come back for 50 + yrs. I will also replace any old electric and
Plumbing I find in old walls once they are down, so next year I don't have to tear down
A new wall or ceiling that I've recently installed.

[cyberheater]

Okay, how big is this area, and do you know why it is coming off?

[topcat6]

Okay, how big is this area, and do you know why it is coming off?

Thanks for your interest but I've already taken my own advice, I stripped all the plaster from the lath and replaced all the old elec. With new. Then I used 3/8" rock over the lath. Looks Great!