Let's look at the Copper Azole formulation that Viance supplies wood treaters in the United States.
Please note:
- The American Wood Protection Association sets the minimum standards for preservatives used in treated lumber for the various use categories listed below.
- Preservative formulations require different minimum retentions to extend the life of wood and for effective protection against termites and fungal decay.
- End tags on lumber designate the preservative code, the use cateogory, the retention level, the third party inspection agency and the treating location.