Limestone Learning Center


Caring For Exterior Limestone Walls

Cleaning Limestone Walls Outside

Limestone is a highly durable material that can last for centuries. The Egyptian pyramids are living proof! Because of its durability and beauty, it gets used all over the world in buildings of all type. If you like its natural look, you may have used it outside on some garden walls or in other areas. Limestone walls are attractive, and you know they can stand up against the test of time. However, anything that sits outside in the elements is going to need care to maintain its original appearance and limestone walls are no different.

More About Limestone

Limestone is a sedimentary rock that’s made up of calcium carbonate and has formed in marine waters over millions of years from shells and skeletal remains of sea creatures. It comes in a variety of textures and colors and no two slabs are the same, which means it can be used for a variety of things in a variety of styles. Limestone is known for adding beauty and character to classic and even modern buildings and is usually used in blocks, slabs, or tiles. No matter where your own personal limestone wall is situated, you’ll want to maintain it so it can hold onto its appearance and value well into the future.

Caring For Limestone Walls With Caution

Limestone is a strong, natural rock, but at the same time, it’s very porous when not sealed. Exterior limestone walls often aren’t sealed, and the limestone can deteriorate when it is exposed to pollutants. You don’t want to leave the walls untreated or they might deteriorate over time and lose their structural integrity. Plus, anything left outside long enough will eventually look grimy. At the same time, any acidic cleaners are going to be bad for the limestone walls so you will want to be careful about what you use.

Proactive Cleaning

Get into a cleaning schedule with your limestone wall, before things get too dirty and too deep for the easy cleaning to do the trick. Cleaning is simple enough and if you stay on top of it, the actions won’t take much of your time. You can simply spray the walls with a limestone cleaner and then low-pressure power wash the cleaner off and allow it to dry. You might also want to re-apply a sealer to stop water from penetrating the wall and causing mold. If the walls have gotten too dirty or if the mold has formed, take a light scrub brush to remove the larger pieces of dirt and grim before you spray the rest of the wall.

Limestone Walls Remain For Years

With proper cleaning, your limestone walls will look great for decades and their structural integrity will last well beyond your ownership of the home. They don’t take much attention, but if you ignore them completely, they may discolor from the dirt and deteriorate eventually. Take care of your investment and if you have any questions about limestone treatment or cleaning, call the experts at Impression.

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