Laying Bricks to Protect a House From Water Runoff

Walkways

• Concrete, asphalt and other smooth, nonporous surfaces repel water. Water-repelling surfaces are an attribute of roadways, but this characteristic contributes to residential storm water damage. A sealed patio or walkway near a home sheds water, leaving moisture to seep and spread into other locations. Surrounding soil may not be able to absorb this excess moisture. Water will pool and can potentially leak into basements or stand near foundations. Brick walkways, when compared to concrete or asphalt patios and walkways, have a higher water absorption rate. Lay brick with space between pavers. Excess water drains into the cracks between pavers and prevents water from running off the area.

Considerations

• The amount of water runoff and subsequent damage to your property and home depends on the amount of rainfall your area normally receives, the type of soil in your yard and whether your home sits at the base of a slope or on level ground. Porous, sandy soils drain water well, but heavy, compacted clay soils are incapable of quick absorption. In situations with heavy clay, amend your soil with compost and consider placing underground reservoirs to encourage absorption. When placing bricks on clay soil, lay brick on top of a layer of porous material, such as contractor sand.

Basins and Terraces

• Water runs downhill and collects naturally in depressions, creeks and riverbeds. Basins and terraces act as catchment systems that slow water on its way downhill. Slow moving water is less likely to cause erosion or carry pollutants into water sources. Water is cleansed as it works its way through soil. Build terraces using absorptive materials such as brick to create natural obstructions for rainwater. As the water seeps through the terrace and collects in a depression, such as a basin or detention pond, the water will be less damaging and easier to control.

Vegetation

• Vegetation acts as a natural moisture absorber. Root systems collect water while holding soil and preventing erosion. Flowerbeds and tree plantings in the area near a home provide a buffer between water and home foundations. Lay bricks from the ground beneath the roof's waterline and downspout to flowerbeds and trees. The bricks will absorb some water but also direct moisture to other, more absorptive, areas.