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Drying 5/4 quarter sawed white oak7/1
We have have some 5/4 quarter sawed white oak that we have been asked to dry. I thought I would put it in a kiln charge along with 5/4 flat sawed red oak and run it on a 5/4 white oak schedule. Starting with a 4 degree depression. The white oak has about three weeks of air drying time. Red oak about two weeks. Would this be a good idea? Any advice would be greatly appreciated.
Sounds too humid to me with three weeks of air drying.
Do you have a cell phone with a weather app? Check the humidity about noon. In GA over the past three weeks and longer, we have had many days with humidity around 40% RH or even a bit lower. If you are near, then your lumber surface is likely quite a bit drier than the 18% EMC (87% RH) that you are suggesting for the start up. This high humidity will add moisture and likely make small checks and cracks get a lot worse.
Would it be a better idea to do a core and shell test, find the mc of the shell, and then jump into the schedule matching the emc with the mc of the shell?
You have the right idea, but the shell cannot be too thick, as we really want the surface MC...maybe 1/8" deep.