here is the story I heard about the outside storm flaps when I got here (wrong or right, im not sure, but it seems to hold true from what I see day to day) ...
All of the older four wheel campers (1973 - 1995 approx.) were made without the storm flaps on the outside. From my experience and listening to customers over the years, these windows worked pretty well at keeping the water out. The most common problem I see on the older campers like this is that the pop-up material and the plastic windows shrink just a little over the years. So on the old campers, sometimes getting the clear plastic window to have a good seal is tough. But once you put the inside privacy flap in place it did the trick to seal up the windows and keep the water out.
When the moved the FWC factory from Colorado out here to California, they hired a new company in Sacramento to start making the soft-sided "pop-up" portion for them.
The new manufacturer had not made these before and just could not get it made right where the windows wern't leaking. Instead of figuring it out and doing it the right way, their way to try and solve the problem was "add the outside storm flap".
The outside storm flaps were OK, but most all of our customers found them difficult to deal with on a daily basis. They required more stitching in the pop-up liner, had more velcro to deal with, and most people could not reach them to open/close them without carrying an extra step stool with them camping.
In early 2004 we started bringing all of this work in house. We made a big sewing room here at the factory, hired sewing staff, and started testing and re-designing the windows for almost 6 months before we were happy with the end product. I think it was Oct. 2004 when we started making all of the campers again without the outside storm flaps (we went back to the past).
So far, so good. We have been happy with the new windows and the customers seem to be happy too !
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