“I just want to let you know we’re rather amazed with our Gaulhofer windows.The other day there was a torrential downpour and it turned out the main trap for our storm drain connection to the sewer was almost completely clogged. We have a lightwell in the back of our place and all the water from the roof started backing up into the lightwell. The water filled the lightwell and started overflowing into the yard. Not knowing what the cause of the problem was, we spent an hour or more bailing water out of the lightwell and dumping it into our neighbor’s back yard (which was draining properly).
“There are two windows in the lightwell – one operable and one fixed pane.The bottom of the window is at least a foot below the top of the lightwell (probably a bit more). So there was a lot of water pressure on the windows.
“Despite that, the operable window doesn’t seem to have leaked at all and the fixed pane window just leaked a little – but it was the framing the contractor used around the window that seems to have leaked – not the window itself.
“In the end the water was only about 1/4″ deep in a small section of the cellar. A lesser window would have leaked or broken completely under those conditions. The Gaulhofers prevented a major (& expensive) flood.
“Needless to say, we’re happy we went with Gaulhofer. Thanks!”