Parking Structure Maintenance: Protecting Your Investment Above Ground

Above-grade parking structures require specialized maintenance. Here's an overview of the key maintenance programs every structure owner needs.

Parking Lot Maintenance Overview

Parking structures are exposed to environmental forces from every direction — top deck open to weather, lower decks exposed to vehicle exhaust, and all levels exposed to chloride-laden water tracked in by vehicles.

Chloride-induced corrosion is the primary structural threat. Salt from roads and de-icing infiltrates cracks in concrete, reaches rebar, and initiates corrosion that expands, cracks, and spalls the surrounding concrete.

Why Regular Maintenance Matters

Waterproofing is the first line of defence. Top deck waterproofing membranes must be inspected annually and repaired promptly where damaged. Water infiltration through the top deck affects all lower levels.

Traffic deck coatings on lower levels protect concrete from tire abrasion and chloride deposition. These coatings wear over time and require periodic renewal as part of a planned maintenance program.

Commercial Parking Solutions

Expansion joint maintenance prevents water infiltration at structural movement points. Failed joint seals allow water to track through the structure to footings and lower levels.

Lighting, signage, and life safety systems (fire suppression, ventilation) require regular inspection and maintenance. Parking structure electrical systems are exposed to moisture and require specialized attention.

Structural assessments by qualified engineers should occur every five years at minimum, with annual visual inspections by facilities staff. Early identification of deterioration prevents exponential repair cost escalation.

Devon Moore, Operations Lead Founder & Operations Lead — D&D Commercial Services

Devon Moore is the founder and Operations Lead at D&D Commercial Services, delivering professional commercial property maintenance across Waterloo Region.