Yet, there is much misinformation, and, in some cases, disinformationconcerning pressure-treated wood, its maintenance requirements, and itssafety in common use. Let's explore the story of pressure-treated wood,and together seek out the truth.
What is pressure-treated wood?
Over 70 years ago, Dr. Karl Wolman invented the process of infusingpreservative deeply into wood products. Today, a giant industry hasgrown up around his quest to invent a wood that can last forever.
Pressure treating is a process that forces a chemical preservativedeep into the wood. The wood product is placed into a humongouscylindrical holding tank, and the tank is depressurized to remove allair. The tank is then filled with the preservative under high pressure,forcing it deeply into the wood. The tank is then drained and theremaining preservative reused. The wood is removed from the tank andprepared for shipment to your local lumberyard.
Needless to say, this process makes the wood quite unappetizing toall vermin, insects, and fungus, which accounts for its 20 year pluslifespan under the harshest conditions!