View the delta Membranes entry on BPindex Visit the Delta Membranes website Technical Drawings – Ground Gas Protection Systems – Delta Membranes Ground Gas Protection Systems – Delta Membranes Gas Protection Systems – Delta Membranes Kevin Dodds, Delta’s Manging Director, shares some thoughts on structural waterproofing and ground gas protection approaches. With much anticipation, BSI launch BS8102:2022 Protection of Below …