Short answer: salt melts ice; sand does not — it only adds grip. Salt chemically lowers the freezing point and clears ice, but it stops working in deep cold and can damage concrete, plants, and pets' paws. Sand provides traction on top of ice without melting anything and works at any temperature. The best choice depends on the temperature, the surface, and what you are trying to achieve. Here is how to pick.
They are often lumped together, but they do genuinely different jobs.
What salt does
Common rock salt (sodium chloride) lowers the freezing point of water, so it melts existing ice and prevents new ice from bonding. Its catch: it becomes far less effective below roughly minus ten degrees Celsius, and it can be hard on concrete, interlock, metal, nearby grass and plants, and pets' paws. Used sensibly and not over-applied, it is the go-to for actually removing ice.
What sand does
Sand does not melt anything — it sits on top of snow and ice and gives your tires and feet something to grip. Its advantages: it works at any temperature, including the deep cold where salt quits, and it is gentler on surfaces and plants. The downsides: it does not clear ice, it needs re-applying as it scatters, and it tracks indoors and has to be swept up in spring.
When to use which
- Salt when you want to actually melt ice and temperatures are within its working range (above roughly minus ten).
- Sand when it is too cold for salt to work, or on a surface you want to protect from salt damage, and you just need traction.
- Both in very cold conditions — a little salt to work on the ice where it can, sand for grip everywhere else.
Protecting your driveway surface
If you have newer concrete or interlock, go easy on the salt — excessive salt and freeze-thaw cycling are hard on those surfaces. Gentler ice melts (like calcium or magnesium chloride blends) are easier on concrete and plants than plain rock salt, though they cost more. On sloped or shaded driveways, where ice is most stubborn, ice control matters even more — we get into that in snow removal for sloped and icy driveways.
Where it fits with clearing
Salt and sand are the finish, not the whole job — they work best on a driveway that has already been cleared, not on top of packed snow. How we fold ice control into a storm is in our snow removal process. For the bigger picture on GTA winters, see our Toronto snow removal guide.
Frequently Asked Questions
Does salt work in very cold weather?
Standard rock salt loses effectiveness below roughly minus ten degrees Celsius. In deep cold, sand for traction, or a specialty low-temperature ice melt, works better.
Will salt damage my concrete or interlock?
Overused salt combined with freeze-thaw can be hard on concrete and interlock. Use it sparingly, or choose a gentler calcium or magnesium chloride blend on newer surfaces.
Is sand better for the environment?
Sand does not add chloride to soil and waterways the way salt does, so it is gentler on plants and pets, but it must be swept up afterward and does not melt ice.
Can I use both together?
Yes, and in very cold weather that is often the best approach — a little salt where it can work, sand for grip everywhere else.
Do I put salt or sand down before or after shovelling?
After. Clear the snow first, then treat the surface — salt and sand do not work well buried under packed snow.
Want your driveway cleared and treated properly all winter? Home Bros clears and salts driveways across the GTA and treats every property like our own. See how our snow removal works and get a quote.