We recently moved into a new house that was built in 1997.
The past homeowner supplied Pella Designer Series casement windows to
the contractors who presumably did the install.
The great room has 2 3'x5's in the front, and 2 in the back side.
The dining room has 2 in the front. The bedrooms all have 2 3'x'5's as well.
Every window in the house has condensation on both the inside glass, as
well as the inside of the outside pane of glass. The inside glass is
removable, and some of the smaller bathroom windows have a hole on the
inside pane with a rubber stopper in them.
Now according to Pellas stated interior humidity recommendations, I'm
well below. I'm currently showing an average of 20-24% humidity.
Now, I have yet to clean the baffles in the sashes, but I think that
would only explain the condensation on the exterior pane (assuming. no
venting is happening between the exterior and interior glass), but I'm
still mystified about the interior condensation.
As it stands now, the interior window rubber seals look fine, but the
exterior seals where the casement hits the outside frame appear ultra
flat, and have ice around from the frozen condensation.
Where's the first place to start? I've read some less than pleasant
Pella stories, and given my humidity level indoor, I shouldn't be
dealing with condensation. I imagine at this rate, these windows won't
last nearly as long as they should.