I'm looking for advice on cutting some glass to glaze my greenhouse. I have a source for double glazed windows (less the aluminum frame) that I'd like to cut into the sized panels I need. This gives me twice the amount of glass at half the weight for the building frame. I'll get a new sharp cutter and keep the wheel lubed. The trick will be cutting glass that is double glazed (sandwiched) around an aluminum strip and the silicon? If you cut 3 sides I'm worried it will just snap the 4th side. Any glass cutters or glaziers out there with a suggestion?