I would agree that the soiling of fresh materials to match is
preferable to the matching of soiled existing units. In the real world
there are a lot of guys who don't care and won't take the extra step
to blend in the new to the old. There are also a lot of guys who send
us dirty samples and claim they've already been cleaned. The cleaning
method and materials will also influence "clean" color. So unless you
can predict what someone is maybe going to use in 15 years to clean
the building, matching the clean isn't as easy as it may seem.

Mike E.

> Please, NEVER match dirty masonry, I am getting tired of working on
> buildings where the previous team of fifteen years aga assumed that
the
> building could not or would not be cleaned and then when we clean
them now
> we have to go back and fix several hundered replacement units that
do not
> match! If the new units look odd next to the dirt ones than find a
way to
> soil the new units that can be eaisly removed in the future.
>
> -----Original Message-----
> From: M. P. Edison [mailto:[log in to unmask]]
> Sent: Thursday, September 05, 2002 4:59 PM
> To: [log in to unmask]
> Subject: Re: It has become conventional wisdom in the last 10 years
in
> NYC ...
>
>
> If repair of existing units is part of the scope of work, there is
> always the interesting issue, if you do not clean the building, of
> whether to match the repairs to the soiled masonry or to what the
> masonry would look like if it had been cleaned.
>
> Mike E.
>
> > depends on what the soil is and what the other scope is. Some soil
> deposits
> > are harmfull to masonry and need to be removed to prevent future
> damage.
> > Also is you are trying to blend in terra cotta or stone replacment
> units on
> > a building in which the original masonry had a range of colr (not
> very
> > consistent) than knowing the color of the adjacent units can help
> get a
> > better match for the new units.
> >
> > -----Original Message-----
> > From: Met History [mailto:[log in to unmask]]
> > Sent: Wednesday, September 04, 2002 5:45 PM
> > To: [log in to unmask]
> > Subject: It has become conventional wisdom in the last 10 years in
> NYC ...
> >
> >
> > ...that "we should really clean the building in order to better
> repair the
> > exterior".   How much of this is real -- and how much of this is
> > project-padding by masonry repair companies?
> >
> > Christopher Gray
> >
> >
> >
>
> 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>
>
>

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>