[QUOTE=mary and bob;512385]
Originally Posted by Ian G.
My only sdvice is DO NOT install the window molding backwards, the lockstrip has to be on the outside. If not there is a good chance the window will leak (because of the molding lip design)
Interesting info, as the Uhaul campers had the side windows installed with a rubber weatherstrip and the lock strip is on the inside. The reason being there is a tab to pull out the lock strip and then the window can be pushed out to be an emergency exit. Uhaul side windows are notorious leakers, wonder if this has something to do with that problem. I replaced one of my side windows, lock strip on inside, it doesn't leak. Another Uhaul owner had a glass shop install their windows and they did it with the lock strip on the outside. Could the outside lock strip method be the solution to the leaking issue.
I can understand why Uhaul does that, it becomes a very inexpensive way to add an emergency escape
, but I also think that could be the cause of the leaks
Each molding is made differently but in the image below you can see a sealing bead on the glass side. This type of bead is on the glass side because the glass has to move in the seal with thermal expansion/contraction. The rib places a higher pressure at that smaller area resulting in a better seal. It would be interesting to see if installing the molding correctly would solve your leak.
BTW I have also seen a number of installations where the lockstrip is installed backwards, the rounded part into the groove with the pointed side facing out. It is easier to install this direction but as you can see it would not fully spread the molding resulting in a poor seal and potential leaks