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Product Review from Environmental Building News
March 1, 2008
PureWood:
Chemical-Free Preserved Wood
The treated-wood industry has been evolving rapidly in the past few years, leaving behind more toxic chemicals like chromated copper arsenate (CCA) and replacing them with a variety of preservatives, some more environmentally friendly than others (see EBN
Vol. 15, No. 8). While all of the other treatment options involve adding chemicals to the wood, a new preserved-wood product, which will be shipped starting in March 2008, relies instead on heat and steam. The product, PureWood, is manufactured by Bay Tree Technologies using a sophisticated thermal-modification process.
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