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Pressure Treatment Info
Our pressure treated wood products are an environmentally responsible choice because they are treated with Copper Azole. Here's what the U.S. Environmental Protection Agency says about this modern wood preservative:
"Copper Azole is a water-based wood preservative that prevents fungal decay and insect attack; it is a fungicide and insecticide. There are two types of Copper Azole: A (CBA-A) and B (CA-B). The use of CBA-A has been generally supplanted by the newer CA-B product.
"Copper Azole Type B was standardized by the AWPA* in 2002 and is composed of copper (96.1%) and azole as tebuconazole (3.9%). Wood treated with CA-B has a greenish-brown color and little or no odor. CA-B is in widespread use throughout the United States and Canada.
"Water-based preservatives like copper azole leave wood with a clean, paintable surface after they dry. Copper Azole is registered for treatment of millwork, shingles & shakes, siding, plywood, structural lumber, fence posts, building and utility poles, land and freshwater piling, composites, and other wood products that are used in above-ground, ground contact and fresh water as well as in salt water splash (marine) decking applications."
* The American Wood Protection Association (AWPA) is the primary standard-setting body for pressure-treated wood. To become standardized by the AWPA, preservative-treated wood must undergo a series of rigorous tests to ensure its durability.