Soot Removal From Brick With a Torch

Torch Benefits

• Using a torch to remove soot from a brick surface can be effective under the right conditions. A torch's flame softens any paint between the surface of the brick and the layer of soot, making it easier to peel or scrape off, revealing clean brick below. While using a torch is not the only way to remove paint from brick, it can loosen soot-covered paint that would otherwise cling to the brick's rough surface during normal cleaning.

Other Scenarios

• If you attempt to use a torch to remove soot that has settled directly on an unpainted brick surface, the torch will prove ineffective. It may even create more discoloration by burning dust and debris that has accumulated on the bricks and inside their crevices and pores over time. This applies to all colors and types of brick, though soot may be more visible on light-color bricks.

First Resorts

• Using a torch to remove soot from brick should be among your last resort solutions. Before getting to this point, try blotting the brick with a mild cleanser. Next, try dry sponging or applying a chemical cleaner specifically designed to break up organic compounds. Sandblasting and power washing are options for exterior walls and masonry affected by soot, though these methods are too messy to attempt on an indoor fireplace.

Process

• If you do have painted bricks with soot damage and other cleaning methods fail, you may want to attempt to use a torch before resorting to other methods, such as resurfacing or replacing the bricks. Gas-fueled torches provide hot, controllable flames that work well on painted brick. You'll need another tool to scrape the paint away while it's still warm, so working quickly and planning the process is essential. If you aren't skilled with a torch, hire a professional to reduce the risk of injury or accidental damage to your home.