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Posted by JT on August 24th, 1998 10:02 PM
In reply to Condensation on windows by JK on August 24th, 1998 08:44 PM [Go to top of thread]

JK, there are just two things that can be done to
eliminate condensation: raise the temperature of the
condensing surface, or lower the reletive humidity.
You've done something in both these areas, but you
can realisticaly only do so much; then you have to
attack the source of the moisture.

The tech apparently thinks the moisture is passing
throughthe brick work then in through the plaster
to the interior. I find it hard to believe that
this could account for as much moisture as you
apprently have. It's true brick will transmit moisture,
but where is that moisture comming from to begin with?
In a significant number of cases, the moisture is
comming from a damp basement or crawl space. Since
it sounds like your climate is pretty humid all the
time, I would also suspect air infiltration to be a
serious contributor; the windows may or may not be
involved. Actually the window itself is often not the problem,
it's the way it's installed and sealed (or not sealed)
to the building. Air infiltration takes place to replace
heated air that finds it's way out through the attic
(do you have moisture problems up there too?). Once
you determine the source, it's probably possible to come
up with a solution. Until then, it's just guess work.

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