Atlanta, GA

Exterior Waterproofing in Atlanta, GA

How Water Moves Through Soil Around a Foundation

Outside the home, water flows downward until it hits denser soil or the footing level, then begins to build pressure against the wall. If the soil is poorly drained, that hydrostatic pressure remains high, pushing water through small pores and cracks. Exterior waterproofing is about controlling what happens in that zone before water ever touches the interior surface.

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Layers of an Exterior Waterproofing Assembly

Instead of being one product, exterior waterproofing is a combination of coordinated elements:

Wall Preparation and Membrane

The wall is cleaned and coated with a waterproof or dampproof barrier that blocks moisture migration through the material.

Drainage Mat or Board

A dimpled or channeled layer keeps soil from pressing directly on the membrane and directs water downward.

Footing Drain or Exterior Tile

Perforated pipe at the base of the wall collects water and carries it away to daylight, a sump, or a storm system.

When Exterior Waterproofing Is the Right Investment

This approach is often chosen when:

Water intrusion is chronic and severe, especially through below-grade walls.
You’re already excavating for another reason, like wall replacement or major structural repairs.

Interior-only solutions would be constantly fighting extremely wet soil.
You want to protect future finishes and use the basement as livable space long-term.