Tony Lausas
Founder & President, Paver Rescue
Winter can be harsh on your outdoor spaces, and while salt is a go-to solution for melting snow and ice, it’s not as kind to your pavers. If you’ve ever wondered how salt affects pavers and what you can do to protect them, you’re in the right place. This guide will explain everything you need to know about salt on pavers, from the damage it can cause to tips for preventing issues before they start.
Why Do We Use Salt in Winter?
Salt is a popular choice for deicing driveways, patios, and walkways. It lowers the freezing point of water, effectively melting ice and reducing slips and falls. However, while it’s great for safety, salt on pavers can have unintended consequences for your outdoor surfaces.
How Salt Damages Pavers
Using salt on pavers might seem harmless, but the reality is that it can cause significant damage over time. Here’s how:
- Erosion of the Surface – Salt is abrasive and can erode the surface of pavers, leading to discoloration and wear. Over time, this erosion can make your pavers look aged and uneven.
- Moisture Absorption – Pavers are porous, which means they can absorb moisture. When salt mixes with melted snow or ice, it can seep into the pavers. As temperatures drop, this moisture refreezes, expanding and causing cracks.
- Weakened Joint Sand – The joint sand between pavers stabilizes the structure and prevents shifting. Salt can weaken this sand, leaving your pavers vulnerable to movement and misalignment.
- Staining – Salt often contains impurities like calcium chloride or magnesium chloride, which can leave unsightly white stains on pavers. These stains, known as efflorescence, are difficult to remove and diminish the appearance of your outdoor space.
Signs of Salt Damage on Pavers
It’s not always easy to recognize salt damage, especially during the colder months when your pavers are often covered in snow. Here are some key signs to look for:
- Cracks and Chips: Small cracks or chips on the surface of your pavers indicate that salt and freezing temperatures have taken a toll.
- Discoloration: Faded or stained areas, especially white marks, are a sign of salt residue.
- Uneven Surfaces: Pavers that have shifted or become uneven suggest that the joint sand has been compromised.
- Weakened Edges: The edges of pavers are particularly vulnerable to erosion and may appear rounded or worn.
Can You Use Salt on Pavers Safely?
The short answer is yes but with precautions. Here’s how to minimize the risk of damage when using salt on pavers:
- Choose the Right Salt – Not all salts are created equal. Look for paver-friendly deicers like calcium magnesium acetate (CMA), which is less abrasive and less likely to cause damage. Avoid rock salt (sodium chloride), as it’s particularly harsh on pavers.
Apply Sparingly – Use only as much salt as necessary to melt the ice. Overapplication increases the risk of damage and doesn’t speed up the deicing process. - Sweep Up Residue – Once the ice has melted, sweep away any remaining salt to prevent it from seeping into your pavers.
- Seal Your Pavers – Sealing your pavers creates a protective barrier that reduces moisture absorption and prevents salt from penetrating the surface. A high-quality sealant is one of the best ways to protect your pavers from winter damage.
How to Fix Salt Damage on Pavers
If you’ve already noticed the effects of salt on pavers, don’t worry—it’s possible to restore them. Here are some steps to take:
- Clean the Surface – Use a gentle, paver-safe cleaner to remove salt residue and stains. Avoid using high-pressure washers, as they can further damage the surface.
- Replenish Joint Sand – If the joint sand has been compromised, replenish it with polymeric sand. This will stabilize your pavers and help prevent future movement.
- Repair Cracks and Chips – Small cracks can often be repaired with a paver-specific filler or patching compound. For more significant damage, you may need to replace individual pavers.
- Apply a Sealant – Once your pavers are clean and repaired, apply a high-quality sealant to protect them from future damage. Sealing prevents moisture absorption and enhances the appearance of your pavers.
Preventing Salt Damage: Proactive Tips
The best way to deal with salt damage is to prevent it in the first place. Here’s how:
- Schedule Regular Maintenance: Keeping your pavers clean and in good condition year-round reduces the risk of winter damage.
- Invest in Professional Sealing: Professional sealing services, like those offered by Paver Rescue, provide a durable protective layer that shields your pavers from salt, stains, and moisture.
- Use Salt Alternatives: Consider using sand or gravel instead of salt for traction. These alternatives are less abrasive and won’t damage your pavers.
Why Choose Paver Rescue?
At Paver Rescue, we understand the challenges winter brings to your outdoor spaces. Our expert team specializes in protecting and restoring pavers, ensuring they look and perform their best year-round. Whether it’s professional sealing, power washing, or joint sand replenishment, we’ve got you covered.
Keep Your Pavers Protected All Winter Long
Salt on pavers might be a winter necessity, but it doesn’t have to spell disaster for your outdoor spaces. By understanding the risks, choosing the right products, and investing in regular maintenance, you can keep your pavers in top shape, no matter the season.
Ready to protect your pavers from winter damage? Contact Paver Rescue today to learn more about our sealing and maintenance services.
