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Kiln dried lumber moisture regain to ambient EMC6/12
I've been operating a Virginia Tech design
In other words, are there any advantages
When the lumber is eventually pulled from
Gene has mentioned in the past that
The lumber in question is predominantly
One of the reasons I'm asking is that I've
Also - in the winter, reaching the ambient
At any rate, the kiln is performing
So are you considering pre-drying your material down to say 10% for material you wont need/sell right away and then flash drying it on demand to 7% in smaller loads as needed?
> ... down to say 10% for material you wont
That's pretty much it ... but more like down
I guess my main question is whether there
I cannot think of any great reasons to dry to 7% MC, give or take, and storing the wood at 14% EMC, compared to drying the wood to 14% MC and then storing it.
However, in practice, if you have a load that you will stop at 14% MC, you will actually have as much as 5% MC variation on each side of 14% MC, so the wood will be 9% to 19% MC. If, on the other hand, you dry to 7% MC, you will likely have 1 to 2%MC variation and as it goes up to 12%MC (a little under the ambient EMC due to hysteresis), the MC will be very uniform. So, then when you are ready to dry it and sell it, it will dry quickly back to 7% MC, versus the 9 to 19% MC stuff that will have a wider MC range even after storage, requiring a bit longer drying.
One other small consideration is that any insects will be happy with much of the 9 to 19% MC wood, while drying to 7% MC will eliminate any insects...the lyctid powderpost beetle will not get into drying wood in a kiln and the other insects will find the wood too dry to survive, although the ambient storage can result infestations.