How often should I reseal my driveway in Ottawa if I park heavy work trucks on it daily?

Heavy work trucks significantly accelerate asphalt deterioration, so you'll need to reseal every 18-24 months instead of the standard 2-3 years for passenger vehicles. The constant weight, diesel fuel drips, hydraulic fluid leaks, and tire scuffing from commercial vehicles breaks down sealcoat much faster than normal residential traffic.

Commercial vehicle impact on driveways is substantial in Ottawa's climate. Heavy trucks concentrate enormous weight on small tire contact patches, creating stress points that crack sealcoat and underlying asphalt. Diesel fuel, hydraulic fluid, and engine oil are petroleum-based solvents that dissolve asphalt binder on contact — even small drips penetrate sealcoat within hours and soften the asphalt beneath. Work trucks also track more dirt, salt, and debris that acts like sandpaper against the sealed surface.

Ottawa's freeze-thaw cycles compound commercial vehicle damage exponentially. Water penetrates any cracks or thin spots in the sealcoat, freezes, and expands by 9 percent. Heavy truck traffic then flexes these weakened areas, widening cracks with every pass. Without frequent resealing, commercial driveways in Ottawa develop extensive alligator cracking and potholes within 5-7 years instead of the 15-20 years typical for residential driveways.

Your resealing schedule should be aggressive: Inspect the sealcoat every spring after snowmelt. Look for tire scuff marks, oil stains, thin or worn areas, and small cracks. If you see asphalt showing through the sealcoat in traffic areas, or if water no longer beads on the surface, it's time to reseal. Clean oil stains with commercial degreaser before applying fresh sealcoat — sealer won't adhere over petroleum residue.

Consider upgrading to commercial-grade materials for better durability. Coal tar emulsion sealers resist petroleum products better than standard asphalt emulsion, though they cost 20-30% more. Some contractors offer rubberized sealers that flex better under heavy loads. Hot-pour crack filling every 2-3 years prevents small cracks from becoming major repairs.

When to hire a professional: Commercial vehicle driveways benefit from professional application every other cycle. Contractors can apply thicker, more uniform coats and use commercial-grade products not available to homeowners. Expect to pay $0.50-$0.80 per square foot professionally applied versus $0.15-$0.35 for DIY materials.

The investment in frequent resealing pays off — properly maintained commercial driveways last 15-20 years in Ottawa, while neglected ones require expensive reconstruction within 7-10 years.