Protect with Sealant
With natural stone being a porous material, regularly applying sealant is essential for its protection. Sealing the exterior will protect it in case it comes into contact with harmful elements, such as bacteria, acid, dust, and the like. However, not all natural stones are created equally, some need to be protected with sealant more often than others. For instance, natural stone floors that are highly porous like Indian sandstone, limestone, and marble require resealing every few months. Meanwhile, natural stones with lesser porosity like granite and quartz can be resealed once a year. For more on sealing exterior natural stone, read this blog that covers the subject.