My friends live in a 80s cement boat, and have done since they built it. Was brilliant but now uninsurable, and they are stuck unable to move it and worrying ab

My friends live in a 80s cement boat, and have done since they built it. Was brilliant but now uninsurable, and they are stuck unable to move it and worrying about every stormy day. That said, for over 20 years it was great, but once water gets in the cracks...