Date: Sat Jan 20, 2001 6:50 pm
Subject: Re: Exterior Windows
This may or may not apply to the original poster, but I'll just
describe what I have done / am doing with my windows.
Per the guide of my contractor who is very experienced with glass, we
bought two Anderson casement windows... merely for the frames. We
installed the windows into the frame. Then my contractor ordered
custom glass to be fitted into the Anderson frames. If I remember
correctly, the stock Anderson glass was two panes of 1/16" with an
air gap inbetween. The glass we put in is one pane of 1/8", an air
gap, then two panes of 1/8" laminated together (1/4"). A very big
difference in the STC was obvious after swapping in the new glass.
Also, if you tap on the old glass, it resounds like a drum. With the
new glass, it's totally dead, like lead.
The custom Andersons as described above are merely the "outer"
windows which are installed in the outer frame of the building. I
will then add my "inner-room", and will add separate "inner-windows"
into the inner frame as well.
The main reason for using the Andersons on the outside was for the
frames (obviously)... ease of installation, excellent all-weather
duty... and they open (casements). As well, it keeps up the value of
the building... if in the future the building needs to be converted
back into a typical office space, the windows can stay. If they were
some type of crazy solid fixed insanely heavy studio windows, they
might not be universal enough for future applications, etc.