If you have a washing machine in the front closet, check the carpeting under it. If it's wet, or the water lines to it are wet, then you may have found the source of water leak, assuming it's not a frame problem. It's what caused my overhang cover to warp. I used stainless steel self-tapping screws with fender washers to secure it to the framing after it dried out. Then I installed a drain pan under the machine.