AQUA PLY PLUS® is a specialty plywood panel that has been treated with AQUA SEAL® copper oxide formulated waterborne preservatives and kiln-dried to a uniformly low moisture content.  The preservative treatment is fixed into the cellular structure of the wood to prevent fungal decay (rot) and attack by termites.  AQUA PLY PLUS has a lifetime limited warranty against fungal decay, against attack by termites and against manufacturing defects like delamination.