While going down I-10 west towards Tucson Az, I went under an overpass and a truck going over it dropped something that crushed my roof. We heard the bang, but @ 3:30AM after looking over my coach, I couldn't find any damage. After we got our camp site @ Rincon West RV park, I hired their local RV washer/waxer to clean my coach. They climbed onto the roof and informed me I had major damage done to my roof. My estimate is approx 15K and I have no idea how long in the shop. It just doesn't pay to travel overnight... Hopefully we'll get it back soon. My insurance (Foremost) has been great, but now I'm worried about my insurance sky rocketing.