When painting brick, each application method has pros and cons. Spraying is much faster but may not penetrate the porous surface of the bricks. Rolling is effective for getting paint into the bricks but doesn't work as well on the mortar. Brushing is very time-consuming and also won't penetrate beyond the surface. For the best results, a combination of spraying and rolling is often recommended. If you use a roller, choose a thick option (at least a half-inch) and ensure the paint gets into all the crevices for even coverage.

You should use cement for a chimney crown. The purpose of the chimney crown is to protect the mortar below from water damage and the effects of weather. For this reason, chimney crowns should only be made using cement. When repairing a crown, use caulks and sealants designed for cement repair rather than mortar repair.

While painting can certainly change the look of a chimney, you should think twice about giving your brick chimney the old landlord special.

Painting brick is porous, meaning it’s full of tiny holes that can soak up moisture. Those holes also allow it to dry, though. So, when you paint it, you trap any moisture inside, providing an opportunity for mold, mildew, and water damage.

Paint also shows wear faster than naked brick. This means that once you paint a brick surface, you’ll have to keep painting it to maintain a clean look. A paint job is also harder to undo on brick because of its porous nature. Once you paint it, it’s hard to go back without some serious power washing—another added cost.

You should clean your home’s brick once per year. This applies to exterior brick, but also to cleaning brick fireplaces. Create a homemade cleaning solution with equal parts vinegar and water. Use a soft-bristle brush to scrub the solution into the face of your brick and remove dirt, algae, and stains. Cleaning will protect brick from damage and boost your home’s curb appeal.