How are posts and poles treated?

The majority of roundwood is treated in an enclosed cylinder that uses a series of vacuum and pressure cycles to allow the preservative to penetrate the wood. This process is called "pressure treating". The American Wood Preservers' Association (AWPA) sets the standards for this process and constant, and consistent monitoring must be practiced at the treating facility to produce a properly treated product. Some preservatives can also be applied by non-pressure (dip) methods. AWPA standards allow dip treating to be used for products that will be used in specific applications. Refer to AWPA use standards at www.awpa.  more

The majority of roundwood is treated in an enclosed cylinder that uses a series of vacuum and pressure cycles to allow the preservative to penetrate the wood. This process is called "pressure treating". The American Wood Preservers' Association (AWPA) sets the standards for this process and constant, and consistent monitoring must be practiced at the treating facility to produce a properly treated product.Some preservatives can also be applied by non-pressure (dip) methods. AWPA standards allow dip treating to be used for products that will be used in specific applications. Refer to AWPA use standards atwww.awpa.  more