The front cap has high and low spots. I pulled both marker lights at top. I did not find any moisture signs anywhere I pulled the bottom light and checked there no sign of moisture. No leak indication inside the trailer any where. What it looks like to me is there is not enough braising to support the fiber glass laid over looks like a fiber board. It looks to me that this is a problem due to the way they were built. With a sticker price of over 30 thousand you would think keystone would know how to build the front of a trailer right. So screwed up yes there should be a class action suit against them. Very poor User's recommendation: Dont buy a keystone.