Electric Power Research Institute (EPRI)
In a Study initiated in 2003, and is ongoing, demonstrates that preservative movement out of treated poles equipped with barrier wraps is blocked. Impermeable barrier wraps impedes leaching into the surrounding environment.
Oregon State University
1997 Oregon State University researchers concluded, “Booted (barrier wrapped) stakes had little evidence of decay, where as those without boots (barrier wraps) experienced large weight loss and extreme shrinkage and deformation.”
American Wood Protection Association (AWPA)
Recently recognized the efficacy of the barrier wrap system. AWPA now includes Barriers in Standard P-20-07 and is working on additional commodity listings of barrier systems.
International Building Codes
The International Code Council Evaluation Services recognizes the use of a barrier wrap system for use in ground contact service in report ESR-1834.
Mississippi State University
In 2000 Mississippi State University termite resistance tests found that there was no attack on any of the coated (barrier wrapped) wood.
Forinek-Canada (Western Lab), PowerTech Labs, BC Science Council, & BC Hydro
Soil Bed tests were performed by Forinek-Canada (Western Lab), PowerTech Labs, the BC Science Council, and BC Hydro on CCA-C treated and untreated Lodgepole pine posts. In high decay conditions for over eight years found that the performance increase due to booting (barrier wrapping) was 2.5 times greater on a retention basis.