DELTA Drain

Product

DELTA-DRAIN is a high-capacity dimpled drainboard that controls the flow of below-grade water. Its two-layer construction — a recycled-polypropylene drainage core heat-bonded to a Typar geotextile fabric — channels incoming water harmlessly to the footing perimeter, protecting the foundation from hydrostatic pressure and water damage.

The dimple pattern delivers high compressive strength and acts as a robust protection layer for the waterproofing membrane during backfill. The geotextile is rot-proof, highly water-permeable, and prevents clogging of the flow passages, ensuring continuous drainage over the life of the assembly.

Specifications

• 3-dimensional dimple-and-groove HDPE/polypropylene composite
• Geotextile filter fabric heat-bonded to dimple crowns
• Outstanding compressive strength and impact resistance
• Stabilized against chemical and environmental stress cracking
• Available in 6 ft and 8 ft wide rolls — the largest drainboard sizes on the market
• Installed outboard of the water-resistive barrier, dimples facing the foundation wall
• Compliant with ASTM E2925 (Standard Specification for Manufactured Polymeric Drainage and Ventilation Materials Used to Provide a Rainscreen Function)