Spalling chimney brick repair that deals with the cause in Egypt Lake-Leto

Bricks at the roofline and the flashing joint

Masonry just above the roof takes water running off the shingles and splash from heavy rain, and it sits next to the flashing that seals the chimney to the roof. A failed flashing joint can keep that brick wet for long periods.

When damage clusters at the roofline, we inspect the flashing as well as the bricks. Replacing the bricks without fixing a leaking flashing joint would leave the new units in the same wet conditions.

Flashing repair is explained separately on the estimate, and we coordinate with your roofer if other roof work is planned.

Dealing with earlier patch repairs

Patching compound or mortar smeared over a damaged brick face may look tidy for a while, but it can leave weakened material behind and trap water against it. When a patch comes loose, the brick behind it has often kept deteriorating.

We remove failed patches, assess what is underneath and replace the units that cannot stay. Patches that are still sound are noted, and we explain whether they are worth leaving.

The aim is a repair that is part of the chimney, not a layer on top of a problem.

Where a patch has held and the brick behind it is sound, removing it can do more harm than good, and we will tell you so.

Scheduling brick work around heat and sun

Fresh mortar needs time to cure, and drying too fast weakens it. According to the National Park Service, keeping the wall between 40 and 95 degrees Fahrenheit guards against freezing and against water leaving too quickly, and repointing is best done in shade, out of strong sunlight, particularly in hot weather.

We plan brick and joint work with that in mind, working in shade where we can and protecting fresh work from direct sun and rain. That can mean scheduling one face of the chimney for a particular time of day.

White bloom on newly repaired brick

Fresh masonry can show a light white bloom in the first months after a repair. The Brick Industry Association calls this new building bloom and notes that it generally fades as the new work dries and weathers.

Efflorescence that appears more than a year after work is finished is a different signal, which BIA links to excessive water penetration or poor drainage. If white deposits come back strongly after the first year, call us for another look.