[Pantera]

I agree that the light is wonderful. I have 6 in my 50x60 and they are not too bad but I would put them in the wall the next building that I build.

Your double pane should not sweat like the ones that they use in most metal buildings. They use a sheet of white fiberglass or plastic (not sure which it is?) that is the same shape as the metal.

I think the problems only show up in a all metal building for some reason. Must have something to do with the surounding metal temp? Also if you have any insulation and heat in the building will also make a difference.

But no matter what if it goes through the roof there is always a chance that it can develop a leak. Just do a lot of homework before you buy some if you are building one. The manfacturers have come a long way with sealing and water control since I built my building back in the early 80's.

Pantera