Water stains near the fireplace, white residue on the brick or crumbling mortar are worth mentioning.
Cracks and missing mortar should be repaired before the repellent goes on.
The masonry, crown and flashing are checked for damage.
The surface is cleaned and allowed to dry.
The repellent is applied according to the product instructions.
Brick and mortar absorb water, which can damage the masonry and cause leaks over time.
Film-forming coatings can trap moisture inside the brick. A breathable masonry repellent lets it escape.
It slows water soaking into the brick. Leaks from flashing, the crown or a missing cap need those parts repaired.
It depends on the product and the exposure. We tell you what to expect for the product used.
