Even new on the Airstream Dealer's Lot... wavy.
Wavy 2006. Wavy 2014. Wavy 2019. They are thin and under no tension, like the curved side plastics. I have never seen a wavy side plastic.
The curved panels and frames DO NOT FIT the curve of the Airstream. Maybe designed for something else... like a Tractor at a Farm. The soft rubber bordering the frame is suppose to keep water from flowing between the guard and outside the window. I can get my fingers in between the skin and seal.
I know it is raining when the water is running down both curved windows.
The corners of the front window... check the caulking. We applied silicone to stop the street side window from leaking inside on a heavy rain. When you see 'drip trails' on the inside the trailer... start looking. There is a small 'gutter' to move water to the left and right. If you are leaning one way or the other... it improves the leaking opportunity. (Look around the buck rivets. Several aluminum panels overlap.)
There is a one inch or so metal band running from the top to bottom. So when you exceed 20 mph... the plastic is 'protected' from splitting in the center, top to bottom. Look... it no doubt added a cost to your Airstream.
When you cannot tolerate the panel any longer... replace with something thicker... I have not been at that point. Yet. I will look at mine to see what options I will have in the near or distant future. Maybe 125 years, more or less.
The cord that holds the plastic into the frame... shrinks. The top left and right corners will pull out first. The diameter or the cord shrinks. Lowes sells the cord... but not that larger diameter. I will ask my Airstream Dealer if they have some I can purchase or exchange an Original Item for a replacement option.
The cord may be 'special for Airstreams'. Very special. Like the plastic.
This cord needs to be pushed back in... after you pull it out and stuff the top left and right corners, first. What is missing, goes to the center. Leaving an empty space at the top center. Stuff something in there... like better cord, or temporary rolled up Gorilla Tape and cover with a Bumper Sticker. ?
Is this cheap protection? Maybe... When you get a stone that cracks the plastic, take clear packing tape and put it behind the star crack. When you get too many... a bumper sticker. If you get too many bumper stickers... get a thicker piece of plastic.
New tint doesn't match? Then go back to the cord, taping on the inside of rock stars and live with it. Maybe a wildlife scene added... use your imagination. I am just getting warmed up...