I am new here, so forgive me if I hit a topic already discussed. I
recently ripped down the old lath and palster ceiling in my diningroom.
I'm putting up blueboard and I'm going to plaster it. How hard will
this be to do right?I'm not worrked about the board as I've put up
drywall before and think i'll be ok, but not so sure about the veneer
over the blueboard If it's a little lumpy, can I always just sand it a
Having done a little work with Gypsum plaster in my old house, I would
say don't count on having to sand plaster. It sets up hard and doesn't
sand well at all. In fact this is an advantage of plaster over drywall,
it is a harder surface.
These are just my opinions, based on my limited experience and
knowledge about plastering. We can see what others say. --Phil
Phil Munro Dept of Electrical & Computer Engin
mailto: firstname.lastname@example.org Youngstown State University
Are you going to make the plaster flat, or textured? If flat, why not use
drywall instead? I've done a lot of plastering on walls, and from what I
remember, it's not something I'd want to do on a ceiling.
Everything I've heard and read says that the plaster will be nicer and
my construction buddy says it is better, too. It's a 100 year old
house, so I'd really like the look of plaster ad that is what
everythign else is. yes, it is a pain and lots of work, but it's what
I think i want, just curious if i'd be able to do it well, which I
think i will once I get the hhang of it.
Doesn't work that way. With plaster essentially everything is
Do a test on some scrap drywall. If you can't get an area a few feet
square dead flat, you'll have no chance of getting a ceiling right.
Maybe it's more that your spackling technique needs improvement rather
than switching to a less forgiving material. What exactly goes wrong
with your spackling?
Well, if you find that you can't get any of the plaster as flat as you like,
you can just relax, make it somewhat irregular, and call it "character",
which is what people used to say about the walls in my dining room before I
skim-coated them. :-)
If you can't finish drywall smoothly, your odds of plastering a ceiling and
having it look even half-way decent when you're done are pretty close to zero.
Plastering is a skilled trade that takes more than just "getting the hang of
it" to have it look right. And I'm just talking about walls. Ceilings are
much, much more difficult.
Hire a pro if you want it to look right.
Doug Miller (alphageek at milmac dot com)
Nope. If you're technique isn't good you'll botch the ceiling.
Drywall is forgiving, plaster isn't.
Why do you want to plaster the ceiling? Since you're putting up
blueboard, or thinking about it, it's not a traditional restoration, so
what's the point? The ceiling is least likely to sustain damage so the
additional hardness and strength of the plaster is unnecessary.
I find that a large wet sponge can be used to smooth out the lumps and
bumps. The effect depends on how much you let the plaster set up
before using the sponge. If you use the sponge early after application
you can push around the plaster a little and knock down big lumps here
and there. However, this can also leave tracks in the plaster. If the
plaster is given a chance to really start setting up, the sponge will
just smooth thing out and will mostly just blend the edges together.
None of this is a replacement for good plastering technique. Make sure
you practice a little (or a lot) on your left over blue board.
Veneer plaster is a totally different material, uses totally
different tools, is done in a very different way, is almost
unrelated to drywall finishing. I am not saying you cannot do it,
but I will tell you that you cannot do it if you start from a
drywall frame of mind. It is not a technique that can be
explained well on usenet. You would be much better off to attempt
a wall long before a ceiling. You will be wearing much of the
material. It would be difficult to maintain a good working wet
edge on a ceiling and mixing the plaster for a competent
tradesman. It will be extremely difficult for a DIY first timer.
See if there is any way to at least go watch a plaster man do some
of this before you consider taking on the finish product.
Keep the whole world singing . . . .
DanG (remove the sevens)
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