Winter weather can transform your driveway into a treacherous, icy surface. While snow can be beautiful, it can also pose challenges for maintaining the durability and longevity of your driveway surface.
The effects of snow and ice differ depending on the material—whether it’s asphalt, concrete, paver/brick, or unpaved stone. Understanding these effects and taking the right preventative steps can save you from costly repairs and replacement down the road. Let’s look at how snow impacts driveways and the best ways to mitigate the risk of damage.
How Snow and Ice Affect Different Types of Driveways
Asphalt Driveways
Asphalt is a popular choice because it's affordable and flexible, but snow and ice can be problematic. The freeze-thaw cycle can do a great deal of damage to asphalt that isn't well maintained. When water seeps into small cracks in the asphalt surface and freezes, it expands, creating larger fissures and potholes. Salt and de-icing chemicals can further exacerbate the problem by speeding up asphalt deterioration over time.
To protect your asphalt driveway:
- Fill cracks and seal the surface before winter approaches to prevent water infiltration.
- Use sand or less corrosive deicing agents like calcium magnesium acetate.
- Shovel promptly (with a plastic shovel) to prevent snow from melting and refreezing.
Concrete Driveways
Concrete driveways are durable but vulnerable to winter’s harsh conditions. Like asphalt, they can suffer from freeze-thaw damage, which can cause spalling—flaking or chipping of the surface. De-icing salts are especially harmful to concrete, as they cause chemical reactions that weaken the material.
To lessen damage to concrete, consider the following precautions:
- Apply a high-quality sealant designed for concrete.
- Avoid using traditional rock salt; opt for non-corrosive alternatives.
- Remove snow regularly to minimize melting and refreezing.
Paver and Brick Driveways
Concrete paver and brick paver driveways are generally more resilient to winter weather. The paver installation method has an interlocking structure that allows for better water drainage; however, these surfaces aren't immune to damage. The gaps between pavers can allow water to pool, freeze, and shift the pavers out of place. Additionally, the use of heavy snow removal equipment can dislodge the bricks or do damage to pavers.
Tips for protecting paver and brick driveways:
- Just like a paver patio, regularly sweep sand or polymeric jointing material into the gaps to keep them stable.
- Use rubber-edged snow shovels or snowblowers with plastic blades to avoid damage during ice removal.
- Stop with the excessive use of chemical de-icers; it can erode the material and cause surface damage.
Unpaved Stone Driveways
Unpaved stone driveways have their own set of challenges in snowy conditions. Snow and ice can compact the stones, making an uneven surface and difficult to navigate. Plows are a problem, too. Despite the operator's best efforts, snow plows can push stones into your yard or disrupt the surface entirely.
Maintenance tips for unpaved stone driveways:
- Level the surface before cold weather to reduce water pooling.
- Plow or snow blow with care using a raised blade to avoid disturbing the stones.
- Add fresh gravel in the spring to replace displaced material.
Steps to Protect Your Driveway During Winter
Taking preventative measures can extend the lifespan of your driveway. Here are some quick steps to minimize potential damage during the winter season:
- Seal cracks and surfaces before the first snowfall to prevent water infiltration.
- Shovel snow promptly and avoid letting it accumulate.
- Use non-corrosive de-icers such as sand or calcium magnesium acetate instead of rock salt (sodium chloride, calcium chloride, and magnesium chloride).
- Inspect your driveway periodically for signs of damage or wear.
- Hire professionals for snow removal if you have a delicate surface like concrete pavers or paver bricks.
FAQ
Does snow removal equipment damage driveways?
Yes, snow removal equipment like plows and shovels can cause significant wear and tear if used improperly. Metal shovels and plow blades can scratch or chip asphalt and concrete surfaces, while improper plowing with heavy equipment can dislodge pavers or compact stone driveways. To minimize damage, use rubber or plastic-tipped tools, and consider hiring professionals familiar with your driveway material who can do a proper plowing job.
What is the best way to protect my driveway from winter damage?
Preventing damage starts with preparation. Sealing the surface, repairing cracks, ensuring proper drainage, and choosing appropriate de-icing agents are all good ways to protect your driveway. Regular maintenance, such as clearing snow promptly and inspecting for damage, can also help. For unpaved stone driveways, leveling and adding fresh gravel are important seasonal tasks.