This stuff sounds good I have to try it on the next coop.. I have linoleum on the floors and the wall on mine works good too.I used a rubberized roof coat product I got from Lowes (Blackjack #57). If it can stand up to all kinds of weather extremes protecting a roof, taking care of a coop floor is nothing to this stuff. Unlike vinyl or linoleum, which can break down over time and allow moisture to get in between it and your wood floor. This roofcoat bonds, and actually becomes part of the floor. It seals all the gaps and joints of the floor, along with the joint/gap where the walls meet the floor. To apply, stir well, and just dump a big dollop on the floor and push it around with a roller. I've had this stuff down in my coop for over three years, and it looks the same as the day I applied it.
Jack