Concrete and stucco masonry are also extremely fire-resistant, as they will not melt away conveniently and can help keep flames from spreading. This makes them an excellent option for properties needing more hearth protection. Between 1730 and 1750, the Grand Lodge endorsed several significant changes that some Lodges couldn't endorse. https://blissdriveteam.github.io/westhillmasonry/Hardscape-Contractors.html