This is the first I've heard of anyone using cement board in a smoker. I'm not sure how well it will hold up since most cement board use large amounts of fiber glass in their construction. Maybe someone else will know more about this than I do.
I usually have a lot of moisture in my CC when its loaded down and I've left a few sheets of hardi board under my shed and it seemed to deteriorate over time and it never had any direct water on it. jm2cw
IDK,.. a red flag immediately went off when I read this. But,.. If it's the smoke chamber, honestly I don't see why it wouldn't work. People use plywood all the time. Good luck !
Plywood is used in a traditional smokehouse. For the most part these smokehouses operate at a much lower temp and a BBQ pit. We used to run our old wood smokehouse never high than 180 degrees. A BBQ pit could be twice that temp.
My very first build was was a wood shed with press board on the outside covered with roofing paper the inside was cement board. However I applied surewall to the concrete board. I got the idea after touring some plantations in the South where repairs were made using surewall to brick structures the owner said the surewall held up real well. I used rock insulation in the walls my biggest mistake came from cleaning made the sure deteriorate.
Last edited by Hotstuff on December 18th, 2017, 2:44 pm, edited 1 time in total.
A man sits with a pretty girl for an hour, it seems like a minute. He sits on a hot barbecue for a minute, it’s longer than any hour. That is relativity. – Albert Einstein
If you don't plan on going over 200°f then I guess cementboard would be ok. Looking at the manufacturers PDF they say not to be installed in places over 200°. I would think it would become brittle over time
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