The long-term integrity and health of a structure depend on a successful wall drainage system, which includes three components:
A dimple board waterproofing (drainage boards, drainage panels) that gives moisture a path to the footings.
A footing drain to collect water, and direct it to a sump pump.
A pump to remove water to an external stormwater collection system. Alternatively, a sloping lot may provide enough gravity from the footing drain to the sunlight.
What is a Dimple Board?
Semi-rigid, three-dimensional dimple boards for waterproofing, as part of the drainage wall system, are sold as rolls. Dimple boards help keep the below-grade wall moisture-free, to protect the structure’s integrity, immensely reduce long-term maintenance and repair expenses, and help to prevent the following below-grade moisture-related issues:
Humidity in the basement or crawlspace that can lead to structurally damaging and unhealthy mold
Cracks in walls
Inward or outward bowing walls
Crystalline deposit of salts (efflorescence) on a crawlspace or basement floors or walls
Unpleasant smells and diminished air quality in the basement or crawlspace
What is a Dimple Board for Wall Drainage?
High-quality below-grade walls dimple boards contain dimples that stick up like small mounds, to promote the flow of water away from a foundation and the building site and stop water and harmful contaminants from entering the building. The dimples also keep the soil away from the poured concrete wall, to prevent water intrusion by hydrostatic pressure.
Why Do Foundations Need a Dimple Board?
Below-grade foundation dimple boards provide an essential component to keeping a building’s foundation dry and managing a building’s integrity and health. They also help control repair and maintenance costs due to moisture intrusion. Specific benefits of dimple boards include:
The tight bond between the dimple board and foundation creates no space for water, insects, or contaminated soil vapors to enter the structure, which helps to protect the foundation’s integrity and avoid expensive maintenance and repairs.
Dimple board drainage systems relieve hydrostatic pressure and extend below-grade waterproofing membrane lifespan.
Watertight dimple boards provide an efficient and cost-effective drainage plane and protect a foundation from water intrusion.
Dimple boards eliminate the need for costly full-height gravel.
Builders can install dimple boards vertically or horizontally, depending on the application:
Vertical applications provide below-grade hydrostatic pressure relief over the foundation, planter, and retaining walls.
Don’t hesitate to contact us professional today for questions concerning below-grade dimple board drainage solutions and other waterproofing systems.
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