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Rough Lumber Stoarge8/7
We have been having some issues with our wider planks cupping more as of late than what we have had in years past. (Meaning 6" - 8").
We do not dry our own lumber, but I am curious what signs I should be looking for that might direct me to the source problem.
Our rough lumber and ripped starting stock are stored in the same warehouses, and we have noticed that moisture content climbs after a load is brought in, in some cases more than doubling. The MC is always highest near the floor.
Our thoughts on improving the situation have ranged from sealing the concrete floor, to putting in large fans to get air flow in.
Any thoughts on what would be a good direction to start in?
By all means seal the floor. Control the humidity in your storage area. Heat/cool isn't as much of a factor as humidity is.
Change in shape or size always means that a MC change has occurred. So, you need to control the EMC ( or humidity) in your storage building. There is a good chapter on storage options in DRYING HARDWOOD LUMBER (on line or here at WoodWeb archives). The concrete floor is cooler and this increases the humidity near the floor. It is likely that the best option is to close in your storage building and then add a little heat...maybe 25 F above the morning' slow temperature I order to get the correct EMC or humidity.