Kiln floor

[Crossroads]

Worked out a deal with my old boss and picked up a piece of CLT 8'x22'x5 1/2" that will be the floor of my kiln that I plan to build this spring. 

[Southside]

How moisture resistant is that stuff? 

[Crossroads]

The glue is is very resistant, the wood is a mix of white wood. So, not super resistant. I'll end up coating it with something to help it out though. 

[GeneWengert-WoodDoc]

How about the softening with temperature?  Do you know the name of the adhesive?

[Crossroads]

It's made by Henkel if I remember correctly, I'm not concerned about the glue at all, this stuff is made for structural use up to like 8 story. One of the QC tests involves cooking it in solution under pressure before destructive testing. If the wood rots out in 5-10 Years, I'm good with that. 

[Southside]

Knowing what it's like in my kiln, my gut tells me 2-4 years before you have serious issues.  

[Crossroads]

I'm okay with that, it will be an opportunity for me to see if it's really going to fit my situation, then I can adjust accordingly. 

[kelLOGg]

In my DH kiln I used aluminum roofing paint on the sides and ceiling but knew I couldn't use that for the floor for lack of durability to foot traffic. So, I put down thin sheet metal and covered it with plywood. Has held up nicely for 10++ years.

[Crossroads]

Is your plywood exposed, or is it treated? I believe this stuff will hold up as well or better than plywood. Then again, I might be partial, because I was involved in making them for a while and know the process. It's a relatively new building material in the US, but in Europe, they've been using it for building (interior and exterior) for almost 30 years. 

[kelLOGg]

It is not treated. It is a thin plywood but has held up to foot traffic and 133°F.

[Crossroads]

Perfect