Waterproofing / Tanking

A range of products and systems applied to below-ground walls and floors to prevent water ingress. BS 8102 classifies waterproofing systems into three types: Type A (barrier/tanking with applied membranes), Type B (structural waterproof concrete), and Type C (cavity drain membrane systems that collect and manage water ingress). Most basement conversions use Type C cavity drain systems for their robustness and repairability.