The exposed edge of the glass would be my biggest worry and why I did not want them. You can hit tempered glass in the middle with a hammer and it will bounce off, but a tap to the edge and it shatters. I have heard reports of these windows breaking during travel. My other concern is how they are hinged at the top, so only the latch at the bottom is maintaining the pressure on the seal. If the latch over time loses tension or the seal shrinks the leading edge would be prone to leaking during travel in the rain. I do admit they look great and would consider them again on my next camper after being able to see how long they hold up after being on the market longer.