By deep litter method I was meaning a layer of straw covered by 1-2 inches of shavings. Every couple of weeks cleaning the coop down to the bare cement. I used the term deep litter as I know it will need a little more cushion for heavy breeds to hop/fall from the roosts.
Here is the fan we intend to install. http://www.qcsupply.com/10404-12-durafan-select-speed-shutter-fans.html
More thoughts on fans? Please give more advice on fans.
Sorry about misunderstanding your deep litter method. Do you already have cement down or is this a shed with a cement floor already? I would say Cement is a pretty cold substrate to start out with as far as holding cold to the floor. Nice to hose out in the summer....but that's about it. you would need to go at least 4-6 inches of litter to help with cold seeping through to feet. In my Run with frozen mud clay underneath or forest floor converted I actually put in about 10-12 inches of oak leaves, mixed with straw. It's pretty cushy though. All the frozen poop shuffles to the ground when they scratch through the leaves and straw. And a couple weeks ago we had a below zero day...I knelt down in that bedding (with Carhart bibs on) and my knee started to feel warmer. Very insulating. The reason I ask is Chickens roost alot when they're feet are cold. If the building is not already built i would suggest (for our winters anyways) Wood Floor joists with insulation between the joists and then covered to avoid mouse chewing...etc. underneath the floor layment. That's what I should have done with mine when I built it. I like to see chickens on their feet eating in the winter. Again just my two cents.
That's a nice big venting fan. will it be fore a relatively large coop? What is the size of your coop? These would go in the peak of a Gabled roof line. If you have just one side on your roof with a slant (the best for wintering chickens in my opinion) then you want it framed in at the top of the tallest wall. If that makes sense.