Hi,
I'm currently planning a conversion of my old garage to a workshop / studio. As part of the conversion, I plan to build a couple of north lights (i.e. sawtooth factory roof). The north face will be glazed at an angle of 30 degrees from vertical.
I plan to build timber frames to hold double glazed units (laminated outside / toughened inside), but am a bit unsure as to how to approach drainage. From what I've seen, in a typical vertical installation, any water penetrating the external bead will drop down the front face of the unit and be drained away via weep holes in the front face of the frame. But, as my units will be angled, the bottom channel will drain backwards.
Any thoughts on how I should build the frame or otherwise seal the units to prevent internal water ingress are welcome.
