Installation help needed
We are installing a non-opening trapezoid vinyl window with an outside trim flange (although it is a new opening). The instructions for this window are not very clear. They tell us to bend nails over the flange to secure which doesn't sound very watertight. No mention is made of screwing the window in anywhere else. In operational windows, there is a channel to screw into but this window is sealed all of the way around since it doesn't open. Is there something we are missing or should we have received some type of installation clips? Any help is appreciated.