The stone exterior of your office building is more than just a surface; it’s a statement. Over time, pollutants and harsh weather can diminish its appeal, causing staining and, in some cases, damage. Understanding how to properly care for and clean your stone facade will extend its life and preserve your business’s visual appeal.
understanding your stone type
One of the first steps in maintaining stone exteriors is knowing the type of stone your building uses. Each type of stone comes with its own care requirements, and incorrect cleaning methods can lead to long-term damage. Granite, for instance, is highly durable and can withstand rigorous cleaning, including pressure washing. However, acidic cleaners should be avoided, as they can slowly erode the surface. Marble, on the other hand, while stunning, is much softer and more porous. This means that you should only clean marble with pH-neutral products to prevent etching and discoloration, and it greatly benefits from sealing treatments to protect the surface.
Due to their porous nature, buildings with limestone or sandstone facades must be handled with care. These stones absorb stains quickly and should be cleaned gently with soft brushes and pH-balanced solutions to avoid damage. Sealing limestone and sandstone after cleaning adds an extra layer of protection. Travertine, like marble, is sensitive to acidic substances and should be cleaned with non-acidic cleaners while regularly sealing it to maintain durability.
A few cleaning techniques will help maintain the beauty and integrity of your stone facade. For routine cleaning, dust and dirt can be removed by rinsing the surface with clean water. This is an easy and effective way to maintain the stone’s natural shine. However, softer stones like limestone or travertine should be rinsed with low-pressure water to prevent surface damage.
A more profound cleaning method may be required for areas with stains, particularly on porous stones. Organic stains, such as those caused by leaves or bird droppings, can often be removed using a poultice—a paste that draws stains out of the stone. Testing cleaning products on a small, inconspicuous area before completing the application is essential to avoid unwanted damage. For tougher grime, pH-neutral cleaning solutions are effective without harming the stone’s surface. High-pressure washing can be safely used on granite, but using a low-pressure method combined with a non-abrasive scrubber for softer stones will prevent surface erosion.
Preventative Maintenance for long-term care
After cleaning, applying a high-quality stone sealer is one of the best ways to preserve your building’s facade. Sealers act as a barrier against moisture, stains, and other environmental damage, protecting the stone’s integrity and appearance for years. It’s essential for more porous stones like marble or limestone, which can easily absorb liquids and grime if left unsealed.
To keep your building’s stone facade pristine over time, a few preventative measures will go a long way. Regularly inspecting the facade is critical. Look for signs of wear, such as cracks, chips, or minor stains. Addressing these issues promptly can prevent more severe damage from occurring. Water management is another essential factor. Ensure your building’s drainage system functions well, as standing water can lead to stone deterioration or mold growth. Scheduling regular professional cleanings, particularly for buildings in areas with heavy pollution or high traffic, can also significantly reduce the wear and tear on your stone facade.
when to call a professional
However, there will come a time when your building’s stone exterior requires more than routine care. Deep stains, significant mold buildup, or areas of physical damage are all signs that professional intervention is needed. Rose Restoration has the experience and equipment to restore even the most damaged stone facades. Whether it’s a regular maintenance cleaning or a complete restoration, our team is ready to help bring your building’s exterior back to its original, pristine state. If your stone facade has gotten beyond your ability to clean, or you’re looking for a more profound, thorough restoration, we’re just a call away.
