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pobrien 01-02-2014 04:16 PM

Sauna interior wall construction
 
I have a sauna almost completed - the frame, insulation, and vapor barrier are installed. I've put up all the sauna boards I had, but I ran out. When I went shopping for some more, the cheapest I found were about $2/linear foot, and they were only sold locally in 8 foot lengths. So, I was looking at $16 for a 3" wide board, so I'd have to spend ~$300 to finish the last 20% of my sauna, which I think is absolutely ridiculous. The sauna kit was a gift, which is why the board prices blew me away.

So, I went to my local lowe's, and they had cedar tongue and groove panels for 6-for $16, which is a perfectly resonable price.

The panels are completely untreated, which had me concerned slightly, so I looked around, and it seems that the general internet consensus is to NEVER chemically treat interior sauna boards. This seems like good advice, even though it was I had planned to do.

Also, it seems that the way that the "offical" sauna boards are treated is they are kiln-baked to reduce the moisture content.

So, here's my question - is there any reason I cannot, or should not, use just bare, untreated, unbaked cedar planks in my sauna? It should be a mostly dry sauna, though there will be some steam. I don't expect I'll use it terribly often, but maybe I'll use it more than I expect. Also, I live in denver, colorado, which is a pretty dry climate, so I'm not terribly worried about mold/rot/mildew.

I did find a product called Sauna wax which is supposed to provide a sauna-friendly interior waterproof treatment (google supi sauna wax), but it is not available at my local sauna warehouse - and in fact they had never heard of such a product. So I'm not sure if it is what I need.

oh'mike 01-02-2014 05:40 PM

The cedar T&G planks at your local store are kiln dried----I think they will work---one concern may be the knots---sauna often use clear (knot free) planks---

The knots might become loose in the heated sauna---if you can live with that---I can't see a reason not to use them.

Someone on this site may have experience building a sauna---let's see---Mike----

pobrien 01-02-2014 05:58 PM

Quote:

Originally Posted by oh'mike (Post 1286184)
The cedar T&G planks at your local store are kiln dried----I think they will work---one concern may be the knots---sauna often use clear (knot free) planks---

The knots might become loose in the heated sauna---if you can live with that---I can't see a reason not to use them.

Someone on this site may have experience building a sauna---let's see---Mike----

They are kiln dried? Is that a usual treatment for wood? I hadn't thought about that. Though, now that i think about it, it makes sense, as wood manufacturers probably don't want for wood to dry out naturally.

Though, if that is the case, what is the difference between lowe's cedar planks and the "offical" sauna ones? Other than the cost, of course. Just curious - I assume that there has to be a reason. As for knots, I dont recall seeing too many. I'll check again. Worst case scenario is I just glue em in.

oh'mike 01-02-2014 09:47 PM

That may be the only difference---grade--or your existing planks may not be cedar,or perhaps a different type of cedar---

bottom line---it should work just fine---

acldesign 02-24-2014 02:20 AM

Got any pictures of your sauna?

Whats behind the cedar boards?, cement board, reflector vapour barrior?


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