Rhizome barrier TEGUFOL® bamboo barrier TEGUFOL® bamboo barrier is an excellent solution for this permanent root protection. The particularly smooth surface of the PE film is not a breeding ground for microorganisms. Even aggressive ones Soil pH range 2 to 12 does not cause any damage to the materials. The application is vertical as a partition between Roots and foundations, pipes, trees etc. This creates a uncontrolled root growth prevented.