Water table (architecture)

A water table is a projection of lower masonry on the outside of a wall, slightly above the ground, or at the top of a wainscot section of a wall (in this case also known as a sill).

It is both a functional and architectural feature that consists of a projection that deflects water running down the face of a building away from lower courses or the foundation. A water table may also be primarily decorative, as found near the base of a wall or at a transition between materials, such as from stone to brick. The top of the water table is often sloped or chamfered to throw off water.

Often a damp course is placed at the level of the water table to prevent upward penetration of ground water.