Copper Azole Wood Preservatives
Copper azole-treated wood is greenish-brown and has little to no odor. Type A (also known as CBA-A) contains copper, boric acid, and tebuconazole. Type B (also known as CA-B) contains higher concentrations of copper and tebuconazole but no boric acid. Copper azole is registered for a variety uses above and below ground, as well as in freshwater and marine decking applications.
For help selecting the proper type of treated wood for any setting, consider consulting the primary standard-setting body for treated wood, the American Wood-Preservers' Association (AWPA).
If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email us at firstname.lastname@example.org.
- Overview of Wood Preservative Chemicals - U.S. Environmental Protection Agency (EPA)
- Initial Preservative Treatment of Wood in Covered Bridges - U.S. Department of Transportation Highway Manual
- Alternatives to Chromated Copper Arsenate for Residential Construction - USDA Forest Products Laboratory
- Changes in Pressure-Treated Wood for Residential Construction - USDA Forest Products Laboratory
- Field Stake Tests with Copper-based Preservatives International Research Group on Wood Protection
- ToxFAQs: Copper - Agency for Toxic Substances and Disease Registry (ATSDR)
- Public Health Statement: Copper - Agency for Toxic Substances and Disease Registry (ATSDR)
- Toxicological Profile: Copper - Agency for Toxic Substances and Disease Registry (ATSDR)