How To Clean Exterior Stone Walls

Stone walls are a beautiful addition to any home but require much maintenance to look their best. This post will discuss; how to clean exterior stone walls and keep them looking new for years!

Typical Causes Of Damage To Stone

The main causes of damage to exterior stone surfaces are water, surface dirt and dust, and air pollution.

Water can cause corrosion or erode the natural stone over time. If water can get into the stone, it expands and damages the stone when it freezes.

Accumulated dust can act like sandpaper, wearing away at the surface and causing scratches. Air pollution, particularly acid rain, can gradually degrade and discolor the natural stone exterior.

However, regular cleaning and maintenance of stone exterior walls can help to minimize these effects and preserve the stone’s natural beauty. Additionally, using protective sealants can provide a barrier against water and pollutants, helping to prolong the life of the stone.

Exterior Stone Cleaning Process

It can be tricky to clean natural stone, as different types of stone wall have varying porosity levels and can react differently to cleaning solutions and certain methods, such as a pressure washer, power washer, or garden hose and scrub brush.

As a result, it’s important to familiarize yourself with the particular type of natural stone wall you have before cleaning it.

For stubborn stains, some preliminary preparation may be necessary. For example, using a putty knife to scrape away any caked-on debris.

It’s important to protect yourself during cleaning by wearing gloves and ensuring proper ventilation if using chemical cleaners. With the proper care and knowledge, your stone surfaces will shine like new.

Granite and Sandstone

Siliceous stones, such as granite and sandstone, are popular for indoor and outdoor surfaces. However, they can also be prone to discoloration from lichens, efflorescence, and stains.

Using the proper techniques and cleaners to avoid damaging the stone’s surface is important. Pressure washers should never be used on these natural stones, as high pressure can damage the porous surface and weaken it over time.

Instead, a mild detergent or an effective cleaner for siliceous stones should be combined with scrubbing brushes or pads. These methods can effectively remove dirt and stains without causing harm to the stone’s surface.

In addition, regular maintenance, such as removing Lichens can help to prevent discoloration and extend the lifespan of siliceous stone surfaces. 

It may be best to consult a professional stone care specialist for specialized cleaning needs. This ensures that your siliceous stone exterior remains in top condition for years.

Clean exterior slate walls
Slate
granite
Granite
Flint
Flint
Quartzite
Quartzite
Clean Brownstone walls
Brownstone
Sandstone
Sandstone
Bluestone
Bluestone

Marble and Limestone

Calcareous stones, such as marble and limestone, have a beautiful aesthetic that adds elegance to any space. However, they can also be prone to stains and buildup if not properly cleaned.

One option for cleaning calcareous surfaces is a power washer or pressure wash. This can effectively remove stubborn dirt and stains, but it is important to exercise caution to protect the surface from damage.

Power washing can cause erosion and remove the natural stone’s protective sealant. It is important to test on a small area first and use the lowest pressure setting possible.

Alternately, specially formulated cleaning products are available for calcareous stones that can gently remove dirt while preserving their shine and protecting their sealant.

Whatever method you choose, regular cleanings will help maintain the beauty of your calcareous surfaces for years.

How To Clean Exterior Marble Walls
Marble
How To Clean Exterior Limestone Walls
Limestone

Types Of Natural Stone Cladding

Natural Stone Veneers

Natural stone veneers are a great way to add character and beauty to your house’s exterior.

These thin slices of stone adhere directly to an existing brick or concrete wall. They provide a durable and attractive siding solution.

In addition to enhancing the appearance of your home, a natural stone exterior can also help increase its value. Unlike traditional house siding materials, natural stone veneers require little maintenance and can easily be cleaned.

Consider adding natural stone veneer to your exterior walls for a unique, low-maintenance house cladding option.

Solid Natural Stone Exterior Wall

Regarding house siding, solid stone is a great option for both timber frames and concrete walls.

As an exterior wall material, it adds a touch of elegance and sophistication to any house. It also offers longevity and durability, with minimal maintenance required besides occasional cleaning.

Solid natural stone can also provide additional insulation, helping to regulate the temperature inside. Plus, with a wide range of colors and styles, it’s easy to find the perfect fit for your home’s aesthetic.

Polyurethane Foam Panel Stone Siding

When choosing a siding for your home, it’s important to consider more than just the initial cost and installation process.

Polyurethane foam panel stone siding may be lightweight and have good thermal properties. But it lacks durability and weather resistance.

If any external stones adhere to the foam material, moisture can travel through the panel and cause further damage.

It’s always worth the extra time to research and choose a siding material that will withstand the elements and last for years. Take a look at the Natural Stone Institute website for more information.

Continued Maintenance Of Stone Walls

Not only do you need to know how to clean exterior stone, but also to maintain and protect them by sealing natural stone walls. Whether made of natural stone, brick, or concrete, they require regular cleaning to remove dirt and algae buildup.

These maintenance tasks should be performed regularly to ensure the longevity of the stone exterior wall and prevent costly repair work in the future.

Keeping an eye out for any cracking or crumbling of the wall’s material is also important, as it can indicate a structural issue that needs immediate attention.

You may want to make some other upgrades to the exterior of your house, so take a look at White Houses, with Black Trim to see if this can inspire you!

Similar Posts