The glass can be set with glass setting tape. I would recommend you use the urethane glass caulking. The urethane is more work it takes two days as you calk one side then let it set for aday then do the other side. You have mask everything. Auto glass stores sell both. Use the single piece gasket from steel rubber co. Ask them for the calking that seals the rubber to the frame. You can work the rubber flange into theframe with nylon putty knife. I think I spelled steel wrong. I give you a step by step if you want it. I used the urethane because it will not leak.