US Patent 7143558 Drying system for structural waterproofing

A drying system for structural waterproofing of an enclosure includes a drainage conduit for draining water from the enclosure. The drainage conduit has a periphery defining an interior and an air inlet and air outlet. An air circulator circulates air between the air inlet and the air outlet throughout the interior of the drainage conduit such that the circulated air removes moisture and gas from the conduit's interior through the air outlet.