Almost every singe beam has come loose during our travels, about 5K miles to date. I ended up taking a turkey basting syringe, with the extreme tip broken off, and injecting wood glue into the joints. I used gorilla tape to support the beam until dry. A pathetic example, albeit all too typical, of Heartland customer care. But, their process for coffered ceiling installation maintains the mandated requirement for reducing manufacturing streamlining.