External Window?

I would like to put an external window in my studio, described here: http://www.johnlsayers.com/phpBB2/viewt ... highlight= The window would be in the isolation room, and would let some light in through the control room window. I discussed with my contractor friend about building the window from scratch similar to the control room window, and he had serious concerns about moisture and condensation inside the window due to temperature differential between inside and outside. He said manufactured windows deal with this with weep holes, etc. I've also considered getting something like a Milgard Quiet Line Window (which claim STC of 47), then building a hinged plug/door as described elsewhere on this forum. Any ideas on the best way to build an external window while keeping isolation values as high as reasonably (budget) possible.

Perhaps I am being naive here, but wouldn't a window that is not a perminent double window, meaning one that has a sash or slides open on one side help deal with condensation? Do you have to have a window that is enclosed all the time? Or atleast the interior of the window could be cleaned or tended to..

Thanks for the ideas. We might build a custom door with the inner panel of glass installed in it that can be locked shut most of the time, but opened for window maintenance as necessary. I've also sent off a bunch of requests for quotes from company's that make custom high STC windows. I'm assuming they will be insanely expensive, but it's going to expensive to get laminated glass and custom build the frame too, so I'll see which is cheaper.

depending on how its constructed - as a single unit, you could put in a dessicate to absorb spare moisture, as separate units, moisture could get in, then again it could get out... i'd probably make the inside window one that could be opened so you could clean and maintain them plus get any built up moisture out.

Cool, thanks. I think I'll go that route.