Diagonal bracing can stop wall cracks

Get more shear support without a new foundation

A couple of weeks ago, we answered a question from a reader with a 1920s home in the flatlands of El Cerrito, Calif. Like virtually all houses of this vintage, it has lath-and-plaster walls. It seems the high water table and the ebb and flood of the bay tides was causing the plaster to crack.

Our reader talked with a drainage contractor who recommend a perimeter drain and a foundation contractor who recommended a new foundation.