Controlling corrosion in lumber dry kiln buildings

Corrosion of kiln building components is a multi-million dollar problem for manufacturers and users of lumber dry kilns. Results of a nationwide survey of kiln users conduced by researchers at The University of Tennessee indicate that the species of wood most commonly dried and the design of a particular kiln are important predictors of corrosion potential, perhaps more so than the materials used to construct the kiln. Corrosion most often occurs where water condenses on, or in, kiln building components. Often this water is laced with wood extractives that increase the rate of corrosion. Solutions identified include improvements in kiln building design, use of more corrosion resistant building materials, and the application of specialized coatings in high risk areas.

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