Hi there! Am new to BYC and to chickens. Started in February with two black copper marans born early January 2019. My three teenage kids and I are enjoying learning while building an unusual coop and a run for them (in our messy garage and out of recycled cable spools and wood reclaimed from some funny dumpster dives!) My wife just hopes her vegan husband will start eating eggs again! Reading BYC posts has been very helpful, so I've now decided to join this terrific community and post a few questions we have regarding coops, feed, keeping our chickens safe and heahthy in freezing Montreal Winter and hot Summer, etc.! For example, here is a first query: one of the advantages of the deep litter method appears to be that under certain conditions it can create heat and compost to keep chickens warm (and a vegetable garden producing well when that compost is eventually applied to it). What kind of coop flooring would be best for this? I was thinking cement backer board would support heat well without offgassing from the generated heat as linoleum or vynil might. Your input is most welcome and appreciated!