Mar-Flex Waterproofing and Building Products presents the ShockWave™ drainage board. ShockWave™ is made from inert, environmentally-friendly, recycled foam products, and helps to qualify for LEED® credits. This drainage board is designed for performance, able to absorb up to 101.11 gallons per hour per lineal foot of groundwater, which eliminates the possibility of hydrostatic pressure. ShockWave™ is designed for heavy-clay soil, clay, or rock soil environments where drainage conditions are extreme, and its closed cell, cross-linked foam resists water absorption to prevent thermal transfer of below-grade ground temperature. This landmark drainage board is built durable as well, able to withstand up to 283.72 psi of compressive strength, and its crush-resistant memory (CRM) acts a shock absorber so backfill doesn’t allow debris to harm the waterproofing membrane. ShockWave™ is the winner of the 2007 “Expert’s Choice” award for most innovative product at the World of Concrete. This award-winning drainage board, built for performance, quality, and durability is the choice for any customer who needs guaranteed and proven protection as shown on many custom-built residential, multi-family, and commercial buildings nationwide.