Seasoning of Wood

by J. B. Wagner

Advantages of Kiln-drying over Air-drying

Some of the advantages of kiln-drying to be secured over air-drying in addition to reducing the shipping weight and lessening quantity of stock are the following:

• 1. Less material lost.
• 2. Better quality of product.
• 3. Prevention of sap stain and mould.
• 4. Fixation of gums and resins.
• 5. Reduction of hygroscopicity.

This reduction in the tendency to take up moisture means a reduction in the "working" of the material which, even though slight, is of importance.

The problem of drying wood in the best manner divides itself into two distinct parts, one of which is entirely concerned with the behavior of the wood itself and the physical phenomena involved, while the other part has to do with the control of the drying process.