This will keep the moisture from getting into the cement. Note that there are four hens with this guy. Four is actually one too many. The coop gets too much build-up with four hens and will cause the ammonia smell to build up with 5 to 7 days. I actually try to only use two hens per breeder room.
Fertility is also better with less hens.
In this case, I was in a hurry to get eggs for incubation because I needed to get them for myself and two elementary schools. Here we have the breeder room converted for use as a brooder. The chicks are put in this room at 3 weeks old. No additional heat is given to them from this point forward. The rooms stay at about 59 degrees Fahrenheit.