How to Properly Install a Slate Hearth for Your New Fireplace

Jason Whitbeck and Mark McCullough demonstrate the precise installation of a slate fireplace hearth. This guide covers the essential substrate preparation required to meet safety codes and manufacturer specifications, while highlighting the critical differences between gas and wood-burning fireplace requirements.

The installation process focuses on preparing a specialized substrate to ensure the hearth meets both building codes and the fireplace manufacturer's technical requirements. Because the gas fireplace unit arrives late in the construction schedule, the team installs the hearth early to maintain project momentum.

Beyond the immediate installation, the project provides insight into the distinct safety standards required for wood-burning fireplaces compared to gas models. Understanding these nuances is essential for homeowners managing renovations or overseeing contractors to ensure their home remains protected and compliant.

Source: Installing a Slate Fireplace Hearth | This Old House