> I am wondering what you all might think of the following.
>
> At the base of a McKim, Mead and White Building I have a rough
granite
> foundation wall, partly buried in a hillside, partly exposed,
enclosing a
> mechanical room. The interior space is unfinished. Originally the
exterior
> was finished with a lime putty stucco,which had fallen off some of
the six
> exposed faces of the wall. I proposed removing the rest of the
stucco and
> replacing it in kind. The contractor has already done a test panel of
> replacement lime putty stucco.
> The remains of the stucco came off the first three walls easily. The
> remainder turn out to be a later replacement portland cement stucco
which
> remains very well adhered, so much so that the contractor is having
a very
> hard time removing it and has already sp
> ent two days longer on this task
> than he intended.
> The room is very dry. For that reason I don't think the portland
cement
> stucco is a problem - its relatively good condition may be due to
that, or
> partly to the presence of a breathing stucco on 50% of the walls.
> I am wondering if it is a good/bad idea to put a lime stucco over the
> remains of the portland? Any comments?
>
> --
> To terminate puerile preservation prattling among pals and the
> uncoffee-ed, or to change your settings, go to:
> <http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>
>
>
I don't know what the age of the Portland cement plaster is from your
posting, but typically these systems contained a great deal of lime as
well as cement, when they were aggressively marketed in the 20's and
thereafter. Given the relative good condition of the cp, and the
relative low strength of cp compared to granite, I would question why
you are bothering to do anything with it. If it ain't broke, don't fix
it.
Edison Coatings, Inc.
M. P. Edison
President
3 Northwest Drive
Plainville, CT 06062 USA
Phone: (860)747-2220
Fax: (860)747-2280
email: [log in to unmask]
Internet: www.edisoncoatings.com
--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>
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