Proper Techniques for Washing Stone Surfaces

Protect and Preserve Your Exterior

 Overview

Stone surfaces, whether natural or engineered, require special care when cleaning to prevent damage and preserve their appearance.

Here are the proper techniques for washing stone surfaces:

Identify the Type of Stone

Different types of stone, such as granite, limestone, or sandstone, have varying levels of porosity and durability. Knowing your stone type ensures you choose the right cleaning method and solutions to avoid etching, staining, or other damage.

• Granite and Slate: Dense and less porous, these stones can handle more aggressive cleaning methods, including higher pressure and stronger cleaning solutions.
• Limestone and Marble: These are softer, more porous stones that require gentle cleaning methods to prevent etching or discoloration.

Use the Right Cleaning Solutions

Always use pH-neutral cleaning solutions specifically designed for stone surfaces. Avoid acidic cleaners (like vinegar) or harsh chemicals, as these can cause etching and permanent damage. For natural growth like algae or mildew, use a specially formulated cleaner for stone surfaces.

• Biodegradable Detergents: Ideal for general cleaning without harming the stone.
• Alkaline Cleaners: For tougher stains, oil, or grease, alkaline-based cleaners are safe and effective for many types of stone.
  

Choose the Proper Washing Method

For stone surfaces, pressure washing should be done with caution. Depending on the hardness and porosity of the stone, adjust the water pressure to prevent damage.

• Low-Pressure Washing: This is recommended for softer or more porous stone surfaces like limestone or marble. Water pressure should stay under 1,500 PSI to avoid damaging the surface.
• Medium-Pressure Washing: Durable stone surfaces like granite or slate can handle higher pressures, but still, avoid using more than 2,000 PSI.
• Hand Washing for Delicate Areas: For intricate stonework, like statues or fragile stone features, hand washing using soft bristle brushes and mild detergents is the best option to maintain the integrity of the stone.
  

Rinse and Dry Thoroughly

After applying the cleaning solution and scrubbing or pressure washing, thoroughly rinse the stone surface with clean water. Allowing the cleaning agents to sit too long or not rinsing completely can leave residues that may stain the stone over time. Once rinsed, ensure the surface dries fully to prevent watermarks or streaking.

Seal the Stone for Protection

Once the stone surface is clean and dry, applying a stone sealant is highly recommended. Sealing helps protect the stone from absorbing moisture, oils, and stains, prolonging the cleanliness and beauty of the surface. Different stones require different sealants, so ensure you're using a product appropriate for the stone type.

Regular Maintenance

To keep stone surfaces looking their best, regular maintenance is key. Sweep or blow off loose dirt and debris, and clean surfaces every few months to prevent the buildup of grime and organic material like moss or algae.

Common Mistakes to Avoid:

• Using Acidic Cleaners: Acids will corrode and damage most stone surfaces, particularly softer stones like marble and limestone.
• Too High Pressure: Excessive pressure can cause etching or crack delicate stones.
• Skipping the Sealant: Without sealing, your stone surface is vulnerable to stains, moisture absorption, and long-term damage.

Conclusion

Properly washing stone surfaces requires attention to the type of stone, using gentle, pH-neutral cleaners, and applying the appropriate pressure levels. Regular maintenance, combined with sealing, ensures your stone surfaces remain clean and well-preserved. Trusting professionals with experience in stone care will guarantee the best results for your home or property.

Schedule Your Stone Washing Service Today

Bring your outdoor surfaces back to life with our professional stone washing services. Call Palm Beach Xterior at 561-379-5540 or visit our Contact Page to schedule a consultation. Experience the difference that our professional cleaning can make for your property!