IMPASSE (TM) termite barrier: New pre-construction termite barrier technology

摘要

IMPASSE(TM) termite barrier is designed to protect structures from termite damage. It is intended for installation by trained personnel on to the soil surface before the foundation slab is poured. IMPASSE termite barrier is a novel laminate polymer membrane in which an interior layer containing lambda-cyhalothrin is surrounded on either side by layers of polymer impervious to the active ingredient. These layers prevent migration of the active ingredient to the laminate surface, ensuring minimal or no risk of exposure to workers. Isolating the lambda-cyhalothrin from the soil also permits it to degrade at a rate that is independent of soil conditions, ensuring a protracted period of termite protection. The smooth and tough polymer sheet provides a degree of physical protection against termite penetration, whilst the interior termiticide-containing layer enables the membrane to resist direct penetration by termites and provides additional protection in the event of minor accidental damage during installation. Computer modeling, supported by interim data from field trials in the USA and Asia suggest that the duration of termite protection will greatly exceed that of current liquid termiticide treatments.