In modern construction, the aspiration is no longer just to build structures, but to build High-Performance Buildings. These structures are designed to be energy-efficient, environmentally responsible, and fundamentally healthier for their occupants. Achieving this gold standard requires a comprehensive strategy for the building envelope, where moisture management is paramount. At the heart of this strategy, especially in below-grade applications, lies the indispensable role of the DELTA®-MS product line.

The journey toward a truly high-performance structure begins where the most common failures occur: the foundation. Water ingress, hydrostatic pressure, and uncontrolled moisture migration are the silent killers of a building’s durability and efficiency. This is why builders, engineers, and architects who prioritize long-term performance increasingly rely on DELTA®-MS as a superior drainage membrane and protective layer, transforming standard construction into a resilient, sustainable construction masterpiece. 

Understanding the High-Performance

Building Envelope: The Moisture Challenge

A High-Performance Building is defined by its air and moisture control. When a building's foundation is compromised by water, the structural integrity is threatened, indoor air quality suffers due to potential mold and mildew growth, and the overall R-value of the wall assembly is severely diminished.

Traditional damp-proofing methods often rely on simple coatings that only resist moisture absorption but fail to actively manage water. When soil becomes saturated, it exerts immense hydrostatic pressure against the foundation wall. This pressure can force water through minute cracks, leading to basement flooding and costly structural damage. The Passive House movement, a leading standard for energy efficiency, emphasizes meticulous attention to detail at every junction, especially the crucial transition from earth to structure. It is here that DELTA®-MS proves its value, establishing a continuous, robust moisture control system that actively manages water rather than simply resisting it.

Watch the Technical Deep Dive

The complexity of integrating a complete moisture control system is best understood through visual demonstration. We highly recommend watching the full technical video series presented by a certified Passive House Consultant. This video breaks down the installation techniques and technical specifications that ensure your DELTA-MS system performs flawlessly, maximizing your energy efficiency goals.

Watch here to see the DELTA®-MS installation process and technical specifications that deliver unmatched foundation waterproofing integrity.

The Core Solution: What Makes DELTA®-

MS Unique?

DELTA®-MS is not merely a waterproofing accessory; it is a specialized, vacuum-formed dimpled membrane manufactured from high-density polyethylene (HDPE). This material provides an exceptional level of durability and resistance to chemicals, root penetration, and puncture—essential features for below-grade protection.

The key to its performance lies in its unique geometry. The continuous pattern of dimples creates an air gap between the foundation wall and the surrounding soil. This intentional air space serves two critical functions:

1. Pressure Equalization and Drainage: The air gap relieves hydrostatic pressure against the foundation. When water reaches the membrane, it travels down the channels created by the dimples to the foundation drain (footing drain) below. This ensures the foundation coating itself is never subjected to constant water pressure, dramatically extending the lifespan of the underlying waterproofing system.

2. Ventilation: In situations where residual moisture is present in the foundation wall, the air gap allows for continuous vertical air flow, facilitating drying and preventing moisture build-up that leads to efflorescence and concrete deterioration.

By creating a clear path for water management, DELTA®-MS provides the ultimate line of defense for a basement, making it dry, usable, and integral to the home's overall energy efficiency.

Comprehensive Protection: From

Foundation to Roof

The philosophy of DELTA®-MS product extends beyond the basement, covering the entire building envelope system—from foundation to wall assemblies and roofing. To achieve the goals of a High-Performance Building, these systems must work in concert:

1. Superior Foundation Waterproofing

For optimal foundation performance, DELTA®-MS is the go-to solution. Its ability to shield the foundation from aggressive soil and relieve water pressure is unmatched. This protection is vital for commercial and residential projects aiming for certifications like LEED or requiring adherence to stringent building codes. When selecting your below-grade solution, remember that the longevity of the structure depends on keeping the sub-structure dry. The DELTA-MS drainage membrane offers a 50+ year design life, ensuring a superior return on investment (ROI) through reduced maintenance and improved interior health.

2. Integration with Air and Moisture Barriers

While DELTA®-MS handles ground moisture, the rest of the structure requires advanced air barrier and moisture control systems in the walls and roof. Dörken offers compatible membranes and flashing systems that seamlessly connect to the foundation layer, eliminating thermal bridging and air leaks. This continuity—a principle central to Passive House design—is what separates a high-performance system from a patchwork of components. The result is a structure that consumes less energy for heating and cooling, providing immediate and long-term savings.

Don't let your next project be undermined by moisture. Embrace the system that provides guaranteed moisture control and contributes meaningfully to your overall energy efficiency goals.

Click Here to explore the full range of DELTA®-MS dimpled membranes and integrated air barrier systems for your next High-Performance Building project.