Salting vs. Sanding Commercial Properties in Ontario: Which Should You Choose?

When it comes to traction and ice control on commercial properties in Ontario, property managers frequently debate salting versus sanding. Both approaches have legitimate applications — but using the wrong method at the wrong time can leave your property unsafe, damage your pavement, increase costs, and create unnecessary environmental impact. Here is a clear breakdown of when each approach is appropriate for Waterloo Region commercial properties.

How Salting and Sanding Work

Salt (most commonly sodium chloride or calcium chloride) works by lowering the freezing point of water. When applied to an icy or snowy surface, it dissolves into the moisture present, creating a brine solution that melts ice and prevents refreezing — as long as temperatures remain above the product's effective threshold. Sodium chloride (rock salt) works reliably down to approximately -9°C. Calcium chloride blends and magnesium chloride work at temperatures as low as -20°C to -29°C depending on formulation, which matters greatly during deep cold events in Waterloo Region winters.

Sand does not melt ice. It provides temporary traction by creating surface friction on top of an icy surface. Sand is most effective on walking surfaces and low-speed areas. However, sand does nothing to address the underlying ice — it must be repeatedly reapplied as traffic displaces it, it clogs storm drains, requires spring cleanup, and contributes to air quality issues when it dries and becomes airborne. For most commercial parking lots in Ontario, sand is considered a last resort rather than a primary ice control method.

When Sand Makes Sense for Ontario Commercial Properties

There are specific situations where sand application is appropriate — or even preferable — on commercial properties:

Extreme cold events: When temperatures drop below -12°C and standard rock salt becomes ineffective, sand can provide traction while calcium chloride blends are used for ice melting. The two products are often mixed (sand-salt blend) to provide both traction and melting action across a wider temperature range.

Gravel parking areas: Properties with unpaved or gravel parking surfaces — common on some Cambridge and rural Waterloo Region commercial sites — use sand-gravel blends rather than pure salt, as salt on gravel offers limited adhesion and higher product loss.

Pedestrian-heavy walkways near sensitive vegetation: In areas where road salt runoff would directly damage landscaping, trees, or ornamental plantings, sand may be preferred for walkways, with salt application limited to areas away from vegetation.

Why Salting Is the Primary Standard for Commercial Lots

For the vast majority of commercial parking lots, driveways, and high-traffic surfaces in Waterloo Region, salt-based products are the professional standard for several reasons:

Salt melts ice at the source, restoring bare-pavement conditions rather than masking them. This reduces ongoing liability risk more effectively than traction-only approaches. Ontario courts have generally considered bare-pavement maintenance the expected standard for commercial properties during accessible hours.

Modern commercial spreaders apply salt at calibrated rates with significantly less product waste than manual methods, reducing both cost and environmental impact compared to over-application. Salt-based ice management is also faster to apply and re-apply than sand, which is important during ongoing storm events.

The downside is real: excessive sodium chloride application damages concrete and asphalt over time, harms landscaping through runoff, and contributes to elevated chloride levels in local waterways. The Grand River watershed — which includes much of Waterloo Region — has seen documented chloride increases linked to road salt use. Responsible application rates and switching to calcium chloride during extreme cold (where it's effective at lower quantities) help mitigate this.

Best Practice: Smart Salt Application

The current best practice for commercial property ice management in Ontario is calibrated, weather-appropriate salt application using the right product for the temperature, applied at the minimum effective rate. This approach — sometimes called "smart salting" — reduces environmental impact and material costs while maintaining safe surface conditions. It includes pre-wetting salt before application to improve adhesion and effectiveness, avoiding pre-application when rain is forecast to wash material away, and using liquid pre-treatment before ice-forming events when possible.

D&D Snow Services follows smart salting protocols on all commercial properties. Contact us at (519) 502-3905 to discuss your ice management plan for the 2026-27 season.