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What is placed around a chimney to prevent leaks?

  1. Caulking

  2. Flashing

  3. Guttering

  4. Sealant

The correct answer is: Caulking

When a chimney is built, there is a small gap between the bricks and the roof. If not properly sealed, water can seep through this gap causing leaks. While all options may be used to prevent leaks, caulking is specifically used to fill these gaps and create a watertight seal. Flashing is used to form a barrier between the chimney and the roof, but does not directly address the gap. Guttering and sealant are used for water runoff and general sealing, respectively, but are not specifically designed for chimneys. Therefore, caulking is the best option for preventing leaks around a chimney.

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