I read your post about your roof problems with your 2011 Astoria and I am sorry to hear that. I am experiencing the same problems with the same model RV 2011 Astoria (looks like it could be a twin of your). It is leaking where the awning is connected to the roof and has stained the ceiling tile near the fridge. It even made a small puddle of water on the floor! It looks to me as if it has been leaking for a significant amount of time. I am wondering what exactly caused your issue, so maybe we can successfully address ours. We checked the dicor and it looks to be in tact. I also noticed that it has been leaking on the passenger side slide out. Thank you for you time and feed back it will be greatly appreciated because this is a wonderful RV and a large investment. We would like to keep it in excellent condition and well maintained.