Stucco Chimney Repair in Stuart, FL

What Is Behind the Stucco

Stucco on a chimney goes over either masonry block or a framed chase covered with lath. On block, stucco bonds directly to the wall. On a framed chase, it hangs on metal lath over a water-resistant barrier, and water that gets behind it can rot the framing. Chimney stucco repair starts by finding which kind you have.

Cracks, Patches and Restucco

Hairline shrinkage cracks can be cleaned and filled with a flexible patching product, then finished to blend in. Stucco chimney crack repair goes deeper when cracks are wide or run in a line, because that often means movement or water behind the coat. Hollow areas are cut back to sound edges, the lath is checked, and new base and finish coats are applied.

When most of the stucco has let go, the honest fix is to restucco the chimney: remove the old coat, repair the barrier and lath, and apply new coats over the whole chimney.

Parging Block Chimneys

Chimney parging is a thin cement coat troweled onto block or brick to protect it. It is common on the sides of chimneys and on smoke chambers. Cracked or loose parging is repaired the same way as stucco, with the surface cleaned, loose material removed and a new coat applied.