Splash Block
Definition and meaning of Splash Block in real estate.
A splash block is a slanted device made of concrete, plastic, or metal that is placed beneath a gutter downspout to direct rainwater runoff away from a building's foundation. It helps prevent soil erosion and water pooling next to the basement or crawl space walls.
In more detail
Proper water management is essential to maintaining the structural integrity of a home. Without a splash block, water pouring from a downspout can dig a hole in the soil, allowing water to seep into the foundation, crawl space, or basement. This moisture can lead to foundation cracks, soil settling, mold growth, and wet basement walls. Installing and maintaining these blocks is a simple, cost-effective way to protect a home from water damage.
Key facts
| Category | Property Types & Construction |
|---|---|
| Common materials | Concrete, plastic, or composite metal |
| Purpose | To prevent foundation water damage and soil erosion |
| Typical placement | Directly under the exit of a gutter downspout |
During a heavy rainstorm, water flows out of the gutter downspout and onto a plastic splash block, which channels the water safely onto the lawn away from the concrete foundation.
Frequently asked questions
How long should a splash block be?
Most standard splash blocks are between two and three feet long, which is typically sufficient to move water past the critical foundation zone.
Should a splash block slope toward or away from the house?
A splash block must always slope away from the house to ensure that gravity pulls the rainwater away from the foundation.