Continuous Waterproofing and Methane Barrier Design and Performance
With the availability of buildable land declining in many high-demand markets, the pressure to build on sub-optimal lots, including brownfields, is intensifying. This makes the requirement to install a robust, continuous waterproofing and gas membrane between the ground and the structure more critical than ever.
Dual threats: water and methane Water intrusion is a perennial concern due to its impact on the long-term structural integrity of concrete foundations and walls, and of the building itself. Concrete is vulnerable to groundwater and chemical contaminants in the soil. These can leach into the pores and cracks of the concrete and degrade its integrity, causing spalling and corroding the reinforcing steel. Moisture migrating into the building can also degrade structural elements over time and lead to mold and other hazards to occupants’ health.