Ice Melt vs. Traction Grit: What Property Managers Need to Know
They're not interchangeable. They solve different problems, work best in different conditions, and using the wrong one in the wrong situation can mean wasted product, damaged surfaces, or a slip-and-fall claim that could have been prevented.
Here's what you actually need to know.
What Ice Melt Does
Ice melt is a chemical de-icer — typically calcium chloride, magnesium chloride, sodium chloride (rock salt), or a blend of these compounds. When applied to an icy or snowy surface, it lowers the freezing point of water, causing ice to melt even at temperatures well below 0°C.
The key thing to understand about ice melt is that it works over time. Depending on the product, temperature, and application rate, it may take anywhere from a few minutes to 30+ minutes to fully break down an ice layer. It's a treatment, not an instant fix.
Ice melt is the right choice when:
- ▪You're applying it before a storm (pre-treatment) to prevent ice from bonding to the surface
- ▪You have time to let it work before the area needs to be safe
- ▪You're dealing with a surface that needs to be fully cleared, not just made passable
- ▪Temperatures are above the product's effective range (most blends work to -20°C or lower)
Commercial-grade ice melt vs. consumer products: The ice melt sold at hardware stores is typically sodium chloride (rock salt), which loses effectiveness below about -9°C. Commercial-grade products — calcium chloride blends — remain effective at -20°C and below, which matters significantly in Edmonton winters. If you're managing commercial properties, you should be using commercial-grade product.
What Traction Grit Does
Traction grit — sand, grit, or sand-grit blends — works completely differently. It doesn't melt anything. Instead, it creates a physical layer of friction on top of an icy surface, giving pedestrians and vehicles something to grip.
The key thing to understand about traction grit is that it works immediately. The moment it's applied, the surface is safer. There's no waiting period.
Traction grit is the right choice when:
- ▪You need immediate traction and can't wait for ice melt to work
- ▪Temperatures are extremely low (below -25°C) and ice melt effectiveness is reduced
- ▪You're treating surfaces where ice melt could cause damage — certain concrete finishes, pavers, or areas near sensitive landscaping
- ▪You're dealing with a steep ramp, loading dock, or high-traffic pedestrian area where a slip would be particularly dangerous
- ▪You need to maintain traction on a surface that will stay icy (grit stays in place; ice melt eventually washes away)
The limitation of traction grit: It doesn't remove ice — it just makes it less dangerous. Once the ice melts naturally or is cleared, the grit needs to be swept up. In high-traffic areas, it can also track indoors, creating a mess and a potential slip hazard on smooth interior floors.
How Edmonton Conditions Affect the Choice
Edmonton's climate creates specific challenges that influence which product to use and when.
Temperature extremes: Edmonton regularly sees temperatures below -20°C, and during cold snaps, below -30°C. At these temperatures, even commercial-grade ice melt works more slowly. In extreme cold, traction grit may be your primary tool, with ice melt used as a supplement once temperatures moderate.
Freeze-thaw cycles: Edmonton's shoulder seasons — October/November and March/April — often bring freeze-thaw cycles where daytime temperatures rise above freezing and nighttime temperatures drop well below. These conditions create particularly treacherous ice because meltwater refreezes overnight. Ice melt applied in the evening can prevent overnight refreezing; traction grit applied in the morning provides immediate safety before the ice melt has time to work.
Snow accumulation: Edmonton averages significant snowfall from November through March. Heavy snowfall requires mechanical removal first (shovelling, plowing) before either product is effective. Applying ice melt to 15 cm of snow accomplishes very little.
A Practical Framework for Property Managers
Rather than choosing one product over the other, most well-managed commercial properties use both — strategically.
Pre-treatment (before a storm)
Apply ice melt to high-traffic surfaces — main entrances, primary walkways, parking lot lanes — before a storm arrives. This prevents ice from bonding to the surface and makes post-storm clearing significantly easier.
During a storm
Focus on mechanical removal (shovelling, plowing). Apply traction grit to areas that can't be kept clear continuously — loading docks, ramps, secondary entrances — to maintain safety while the storm is active.
Post-storm
Apply ice melt to cleared surfaces to address residual ice and prevent refreezing. Use traction grit on any areas where ice remains and immediate traction is needed.
Extreme cold events
When temperatures drop below -25°C, rely primarily on traction grit. Ice melt still works at these temperatures but more slowly. Prioritize traction over melting.
Surface Compatibility: What to Use Where
Not every surface is suitable for every product. This matters for property managers responsible for maintaining the condition of the properties they manage.
Concrete: Both products are generally safe on concrete, but high-sodium ice melt (rock salt) can accelerate concrete spalling over time, particularly on newer concrete. Commercial-grade calcium chloride blends are gentler. Traction grit is always safe on concrete.
Pavers and decorative concrete: Use caution with any ice melt product on decorative or stamped concrete. Traction grit is the safer choice for these surfaces.
Asphalt: Both products are safe on asphalt. Asphalt is generally more tolerant of de-icers than concrete.
Metal surfaces: Avoid ice melt on metal grating, stairs, or loading dock plates — the chloride compounds accelerate corrosion. Traction grit is the right choice for metal surfaces.
Near landscaping: Ice melt runoff can damage grass, plants, and trees. In areas adjacent to landscaping, use traction grit or apply ice melt sparingly and away from plant roots.
Indoor-outdoor transitions: High-traffic entrances where people track product inside are a particular concern. Traction grit tracks indoors and can create slip hazards on smooth floors. Ice melt can damage certain flooring materials. Consider entrance mats and limit product application near doorways.
Stocking the Right Quantities
For a typical commercial property portfolio in Edmonton, a reasonable starting point is a 2:1 ratio of ice melt to traction grit by weight. Ice melt does the heavy lifting through most of the season; traction grit is your emergency tool for extreme conditions and immediate-traction situations.
Adjust this ratio based on your specific properties:
- ▪More traction grit if you manage properties with steep grades, loading docks, or metal surfaces
- ▪More ice melt if your properties are primarily flat, paved surfaces with no surface compatibility concerns
- ▪Equal quantities if you're in a high-traffic pedestrian area where both immediate traction and full ice removal are priorities
Both products are available in bulk quantities — 20 kg bags, pallets, and 1,000 kg totes — and volume pricing makes stocking up in advance significantly more cost-effective than buying reactively.
The Liability Angle
Property managers have a duty of care to maintain safe conditions for tenants, visitors, and the public. In Alberta, that means taking reasonable steps to address icy conditions in a timely manner.
Using the right product in the right situation isn't just about operational efficiency — it's about demonstrating that you took appropriate action. A slip-and-fall claim is significantly harder to defend if the investigation reveals you applied traction grit to a surface that needed ice removal, or used a consumer-grade product in conditions that required commercial-grade de-icer.
Document your winter maintenance activities: what products you applied, where, and when. This record is your best protection if a claim arises.
Getting Your Supply in Order
The most important thing you can do right now is make sure you have the right products on hand before the season starts. Running out of ice melt during a cold snap or discovering your traction grit supply is depleted after a major storm are entirely avoidable problems.
Request a quote for your winter supply needs and we'll help you put together the right product mix and quantities for your property portfolio — delivered to Edmonton and surrounding areas before the season hits.
