Tequila wrote:
You may never, however it is a weak spot and IMO the extra window is not worth the risk, plus it precludes a fiberglass wrap around nose, creating the other leak potential spot, the front side seams.
It has not been a weak spot on my trailers at all. I do a lot of travelling in all kinds of weather and it seems to me that if it were going to leak it would have done so by now.
That front window is much appreciated by my wife when she is working in the kitchen and by me when sitting at the dinette on my computer.
Regarding the fiberglass wrap around nose, that is exactly what my trailer has, and so do many others. it is called a cap.
Barney