The Potomac River has earned its highest grade ever! In a dramatic turnaround for our region’s drinking water source, the Potomac’s health has improved from an abysmal D to a B in just ten years.. For the first time in generations, we are within reach of enjoying a healthy, thriving Potomac River.

Leading Commercial & Residential Waterproofing Solution. Mar-flex Waterproofing & Building Products is your complete resource for above and below grade waterproofing.

Teacher resources and professional development across the curriculum. Teacher professional development and classroom resources across the curriculum

Integrate water-management strategies. The foundation drain shouldn’t do all the work. If groundwater is managed well, underground drains become just one part of a …

Many basements are wet, which is why more of them aren’t used for living space. A high water table isn’t always to blame; often basement get wet after heavy rains and melting snow seep in through the walls. The soil right next to a foundation is usually wettest because all the rain that hits the

No matter the size, T. Clear offers a full line of concrete building envelope products for your projects. In fact, we have you covered from below ground level, up to where your building touches the sky.

The National Foundation Repair Association, Inc . is a professional national organization that exists to promote high ethical standards in the practice of foundation repair and to promote cooperation between the foundation repair industry and government.

Designed for concrete, slab and foundation insulation as well as water resistance, InsulGrade is widely used for many below-grade and under slab insulation projects.

Foundation Drains. Drainage is a key element of any waterproofing or dampproofing system. Surface drainage is the first opportunity to mitigate water infiltration, but it is very difficult to keep all water away from foundation walls-both surface water and ground water can lead to problems.

AsktheBuilder.com: Foundation soil grade is important to consider for new home construction and for existing homes.