What is an interior weeping tile system?
An interior weeping tile system, also referred to as an internal perimeter drain system, is internal waterproofing that is the alternative to foundation excavation and waterproofing usually for a concrete block foundation.
Compared to exterior waterproofing, an interior weeping tile system is much less expensive (since no excavation is involved) and is a proven, highly effective basement waterproofing method. Interior perimeter drainage systems are used mainly for waterproofing concrete block / cinder block foundation walls. This waterproofing system is so reliable that some very large companies sell this type of system for dealing with virtually all foundation waterproofing problems. Internal waterproofing is often the approach of choice given the destructiveness of foundation excavation.