DELTA -MS is a dimpled membrane, impermeable to water and water vapor. The dimple pattern creates an air-gap between the membrane and the foundation wall. This allows any incidental water getting past the dimpled membrane to flow freely to the perimeter footing drain. The air-gap provides a safe separation and full capillary break between the foundation wall and any ground moisture. DELTA -MS bridges large cracks and imperfections in foundation walls. It can also be utilized as an effective protection layer over spray or sheet applied waterproofing systems. DELTA -MS is available in many sizes to cover any foundation with a minimum of overlaps and seams. The high compressive strength of the membrane ensures sustainable protection of foundation walls. Features: The Foundation Protection System that Keeps Basements Dry Long-lasting Moisture Protection, Long-lasting Satisfaction The Most Durable Dimpled Membrane on the Market Faster Installation, Better Protection Benefits: Two lines of defense against water intrusion: dimpled membrane provides capillary break; air-gap allows incidental water to freely drain by gravity Eliminates interior dampness and musty odors Reliably bridges foundation cracks and deflects soil moisture, unlike asphaltic sprays Continues to function even if foundation shifts or cracks No unpleasant chemical odors or harmful VOCs Resists damage from backfill, like rocks and debris Installs in all types of weather Applicable Standards: OSHA 29 CFR 1910.1200, US Code Approval ICC ES ESR-2303, Canada Code Approval CCMC 12788-R and 12658-R, LEED