Hi Tom!
I install floorcovering so maybe I can help in some way.
> > > "My concern is basically this....will the bare 'crete cause any problems with temp control or moisture control?"
The concrete will stay somewhat cooler than room temp, if any cages that aren't insulated on the bottom will be placed on the floor this will affect the cage's temps a little, probably 5 degrees or so at most.
As for moisture, humidity, the room will still pretty much be what it is today (low or high humidity), regardless of any type of floorcovering. In some cases sheet vinyl can help control high moisture by slowing it down a tad but it won't cure it. Good ventilation, air circulation is more of a factor than the floor.
Forget about the grass-type carpets, too hard to keep clean. Other than that, its basically just a matter of preferrence.
My reptile room is a former garage that's been enclosed. It has a painted floor and that's the way it's gonna stay. I love it. Easy to clean & take care, cheap & easy to repair. In situations where I need to place a quarrantine cage/tank on the floor I cut a piece of the blue insulation board and set the cage/tank on it to keep the floor from affecting its temps.
If you want a nice looking floor that's easy to clean go with sheet vinyl (sheet vinyl is what a lot of people call linoleum, even though its technically different).
If you decide to use carpet, that'll work just fine, too, its just not as easy to keep clean. For carpet you'll want to go with either an indoor/outdoor "level loop" or a commercial-style "level loop," like what's common in offices. The commercial will be a little cheaper.
Level Loop:
Level loop is carpet that each row in the carpet is a continuous-running string. Typical house carpet is "cut pile" or "plush," open ends instead of loops, on the surface.
If I were you I'd most likely loose-lay whatever you put in there. Makes it easy to replace. You'll have to secure the vinyl/carpet in the doorway or it will either curl up or unravel. Vinyl, whether loose-layed or glued, will need to have all edges secured, covered, by baseboard or quarter round to keep it from curling up over time. Carpet will lay flat regardless.
Catch ya later!
HH
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Due to political correctness run amuck,
this ol' hillbilly is now referred to as an:
Appalachian American