Fireplace Safety Codes and Clearance Standards
A masonry hearth adds immense character to a home. It also adds thousands of pounds of dead weight to your floor joists and foundation. If you plan to install a stone fireplace, you have to think about what happens beneath the floorboards before you pick out your favorite rock samples. Our local ground contains a high concentration of red clay. This soil moves constantly depending on the moisture level. When you pile tons of natural limestone or fieldstone into a centralized area, the ground underneath takes a heavy load. Standard concrete slabs or floor joists cannot support a full-sized natural stone fireplace without modification. An indoor masonry hearth requires its own dedicated foundation footing. This concrete pad sits directly in the earth beneath your crawlspace or basement floor. It distributes the weight evenly so your living room floor does not sag. If your home sits on a slope, the structural demand increases. Soil on inclines creeps downward over time, especially during...