[war1025]

Does anyone happen to know how toxic the new copper compounds are? Obviously they are toxic enough to microbes to make the wood rot resistant.

Also a fun fact I learned since our deck was originally built 15-20 years ago shortly after the switch-over to the new treated wood:

They needed to re-formulate the coatings they put on fasteners to hold up decent in the new treated wood. It took them a couple years to figure that out or at least for the knowledge to be widely known.

All the screws in our deck that I took out were corroded to the point that many of them looked more like toothpicks than screws when I removed them.