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horsehair plaster? Steve 07-30-2007
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Posted by Steve on July 30, 2007, 9:02 pm
Daughter just bought a 100 yr old home.
The bedroom walls, I'm told, are horsehair plaster.
I got a quick look at one of the walls today while they were Opening a wall
up to connect two bedrooms.
Looks like a 3x3 stud with horizontal lath.<sp?> About 3/8" of plaster over
the lath.

All the bedrooms were painted over wallpaper.
The paint peels right off of the paper in full sheets.
15 minutes to peel all the paint off the paper.

Now how to deal with the paper???
We've been told removing the paper can damage the plaster...
Son in law asked to borrow my sander to sand it smooth....

Anything special about horsehair plaster I should know ???

I've never seen paint peel off like this did...

What would be the best way to finish/repair these walls???

TIA

Steve



Posted by Big_Jake on July 30, 2007, 9:39 pm
> Daughter just bought a 100 yr old home.
> The bedroom walls, I'm told, are horsehair plaster.
> I got a quick look at one of the walls today while they were Opening a wall
> up to connect two bedrooms.
> Looks like a 3x3 stud with horizontal lath.<sp?> About 3/8" of plaster over
> the lath.
>
> All the bedrooms were painted over wallpaper.
> The paint peels right off of the paper in full sheets.
> 15 minutes to peel all the paint off the paper.
>
> Now how to deal with the paper???
> We've been told removing the paper can damage the plaster...
> Son in law asked to borrow my sander to sand it smooth....
>
> Anything special about horsehair plaster I should know ???
>
> I've never seen paint peel off like this did...
>
> What would be the best way to finish/repair these walls???
>
> TIA
>
> Steve

It should be easier to strip the wallpaper off plaster than it would
off drywall. The plaster is much harder, but the bad part is that
plaster tends to develop cracks, and the paper could be holding it
together. Google "plaster washers" to understand what you need to do
to repair the cracks.

I don't know what he wants with the sander?

JK


Posted by Wayne Whitney on July 30, 2007, 11:10 pm

> Google "plaster washers" to understand what you need to do to repair
> the cracks.

My understanding is that plaster washers are not used for
run-of-the-mill plaster cracks, but rather they are only required when
the plaster key has broken and the plaster has pulled away from the
lath.

Posted by Big_Jake on July 31, 2007, 12:00 am
>
> > Google "plaster washers" to understand what you need to do to repair
> > the cracks.
>
> My understanding is that plaster washers are not used for
> run-of-the-mill plaster cracks, but rather they are only required when
> the plaster key has broken and the plaster has pulled away from the
> lath.

Once the plaster keys have broken off and the plaster has moved away
from the lath more than about 1/2", it is too late for anything.
Plaster washers work well for cracks bigger than hairline cracks.
Very tiny cracks can often be caulked with good results.

Steve is right, though, and tearing the plaster off gives you an
opportunity to upgrade insulation and electrical.

JK


Posted by DanG on July 30, 2007, 11:25 pm
Many old plaster walls were papered, sometimes with real cloth if
there were problems.

The paint peeling off is disturbing. If it was a vinyl wallpaper
and latex paint this would sound right. If it was vinyl paper,
you might be able to steam it off after rolling a Zinser paper
tiger all over. Some the chemical strippers are very good. If it
is old paper wallpaper and it had a grease film on it, the paint
would peel.

For minor repairs, drywall compound should stick quite well.
Learning to patch real plaster and developing the original texture
is a bit of learning curve. Wash the walls with real TSP and skim
them out with drywall compound. Create whatever texture you
desire. Plaster exterior walls on masonry may prefer oil based
paints to be able to breathe.





--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net



> Daughter just bought a 100 yr old home.
> The bedroom walls, I'm told, are horsehair plaster.
> I got a quick look at one of the walls today while they were
> Opening a wall up to connect two bedrooms.
> Looks like a 3x3 stud with horizontal lath.<sp?> About 3/8" of
> plaster over the lath.
>
> All the bedrooms were painted over wallpaper.
> The paint peels right off of the paper in full sheets.
> 15 minutes to peel all the paint off the paper.
>
> Now how to deal with the paper???
> We've been told removing the paper can damage the plaster...
> Son in law asked to borrow my sander to sand it smooth....
>
> Anything special about horsehair plaster I should know ???
>
> I've never seen paint peel off like this did...
>
> What would be the best way to finish/repair these walls???
>
> TIA
>
> Steve
>



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