scope:

This Standard covers barrier protection systems used to augment preservative treated wood and wood based components for ground contact uses, such as posts, poles, piling and the like. The barrier system protects the decay and termite susceptible portions of the underlying wood member. Barrier protection systems are made of impermeable, weather resistant materials and are permanently affixed to the wood. Listed end uses of Barrier Protection Systems in conjunction with treated wood products are defined by Standard U1, Commodity Specification K.