Sealing limestone surfaces, such as countertops, is sometimes somewhat of a controversial subject. While some say it is necessary, others disagree. We will attempt to clear up any doubts about sealing limestone that you may have. Also, limestone that is dense enough may be polished. However, even polished limestone will never be as shiny as some think it should be, like marble.
One thing that I find odd is that manufactured stone fireplaces are sometimes referred to as natural stone. On this page, Natural stone will refer to actual stone, while manufactured stone will refer to the up and coming man made alternatives. Manufactured stone fireplaces may also be referred to as cultured stone or thin stone fireplaces. Cultured or manufactured stone is made from stone aggregates, different dyes and cement. Got it?
Benefits of Manufactured Stone Fireplaces
Natural cut stone as a building material is derived from quarried rock; divided into three types, the classifications relate to how the rock was formed geologically. Igneous rock, such as granite, is formed by the crystallization and cooling of molten magma. It forms the bases of continents and mountains ranges, and is relatively hard and homogenous.
Sedimentary rock is created by a more complicated progression when weather and water movement erodes igneous rocks, forming gravel, sand and silt. These are deposited on the bottoms of oceans, lakes and river beds, along with minerals from sea water and marine organisms.
A brick repointing job looks simple, but it’s actually not easy, and isn’t something the average homeowner should take on, since you can end up damaging a wall and creating a big mess. There are 4 steps involved; preparing the joint, mixing the mortar, filling the joint with the mortar, and finishing and shaping the joint.
Preparation for repointing is the step during which an inexperienced workman most risks doing permanent damage, and merely brushing out loose mortar and refilling will produce a joint which, although it may look fine, will decay and loosen within months.
Mortar joints in masonry are one of the few parts of a building which are not deigned to be permanent. Properly applied mortar should last for 50 to 100 years, but the time will inevitably come when moisture, temperature changes, vibration and other deterioration make necessary the repairing and replacing mortar joints (also referred to as tuckpointing).