If your goal is to enjoy a warm, toasty fire this winter, you’ll first need to ensure you have the right chimney. There are a few things you should know about chimney building first. Here are just five we thought were worth mentioning:
* Your chimney is likely the heaviest part of your home, which is why it should have adequate support. An eight to twelve-inch concrete footing located slightly below your home’s foundation is recommended.
* A standard chimney is 32 inches by 32 inches, and forms an internal square that is eight inches on all sides. The exact size of your chimney will depend on the open area of your fireplace, and should be based on guidelines provided by the Brick Industry Association.
* The walls of a chimney should be at least four inches thick; however, eight inches is recommended. Chimneys that are eight inches thick will withstand changes in temperature better, and are much less prone to cracking or breaking.
* Natural stone and brick are recommended over concrete because these materials are better able to withstand high temperatures. If concrete blocks are used, they should be filled with a heat-resistant concrete for added protection.
* The top of your chimney should extend at least two feet above your roofline. It must also be at least two feet higher than any other object or structure that is within a ten-foot radius of its center.
Adding a chimney to an existing structure is far more complicated, and can involve moving wiring and plumbing lines in addition to providing adequate support. Permits and inspections are sometimes needed as well. One of the best ways to ensure your chimney is safe and meets all local building code requirements is to contact your local chimney sweep in Long Island NY.
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