Suspended decks carry vehicles, snow, and road salt. The concrete must resist chloride penetration, the rebar must be protected from corrosion, and the slab must shed water rather than trap it. We build parking structures to the structural engineer's specifications, using low-permeability mixes, proper reinforcement cover, and maintenance-ready sealers. Every project includes a written estimate and a long-term care plan.
Road salt enters a parking deck through cracks and porous concrete. Meltwater carries chlorides down through the slab, reaching the reinforcement. Once corrosion starts, the rebar expands, spalls the concrete, and the structural integrity fails. Unlike a ground-level lot where cosmetic damage is the main concern, a corroded deck is a building failure.
Prevention starts with the concrete mix. We specify low-permeability, air-entrained concrete with corrosion inhibitors and place the rebar with the engineered cover depth. The slab is finished to slope so water runs off rather than pooling. Once cured, the deck is sealed with a chloride-resistant sealer and a maintenance schedule is documented so resealing happens on time.
The structural engineer specifies slab thickness, reinforcement layout, cover depth, mix design, and load capacity. We confirm our forming and pour plan against those drawings before any work begins on site.
Set forms and place rebar
Suspended deck forms are set with the correct camber, rebar is positioned with spacers to achieve the engineered cover depth, and post-tension cables are installed if the design calls for them. Layout is verified before concrete arrives.
Pour low-permeability concrete
The concrete is air-entrained, low-slump, and mixed with corrosion inhibitors per the engineer's spec. It is placed, consolidated without over-working, and finished to the specified slope so meltwater sheds off the deck surface.
Cure, seal, and hand off
The slab cures under controlled conditions, then the chloride-resistant sealer is applied. A written maintenance schedule is provided so the property owner knows when to reseal and how to inspect for damage.
Ongoing care
Why Sealer Maintenance Extends Deck Life
A properly sealed parking deck can perform for 30+ years if maintenance is done on schedule. Sealer wears from UV exposure, freeze-thaw cycles, and traffic. In Laval's climate, resealing every 3-5 years is typical. Skipping maintenance allows chlorides to penetrate, and the deck deteriorates rapidly.
We deliver a maintenance plan with every project that specifies sealer type, reapplication intervals, and annual inspection points. We return on schedule to perform the resealing work, and we coordinate with parking lot maintenance on adjacent ground-level sections. Our commercial concrete team also handles deck repair if spalling or joint failure occurs between scheduled maintenance.
Chloride resistance, live load, sealer maintenance and structural repair.
Yes. Structures use lower-permeability, chloride-resistant mixes with corrosion inhibitors and more reinforcement protection. Ground-level lots take chloride exposure but the rebar is less critical to building structure; in a deck, rebar corrosion is structural failure.
Penetrating silane or siloxane sealers and traffic-bearing membrane systems are common, depending on the deck spec. Reapplication every few years is typical in Laval because UV and freeze-thaw wear sealers faster than in milder climates.
Both. We pour decks on new parking-structure construction under the engineer's drawings, and we perform structural concrete repair on existing structures where spalling, corrosion, or joint failure has begun. The scope drives the approach.
The structural engineer designs the slab and reinforcement for the specified live load (passenger vehicles, fire access, snow load). We follow the engineered drawings exactly; the load capacity is a structural property of the design, not something we adjust on site.
From several weeks for a single-deck overlay to many months for a full structure. The engineered project plan drives the timeline; the full schedule is in the quote and coordinated with the engineer and general contractor.
Client reviews
What Laval Operations Say About Their Parking Structures
Multi-level structure repair after 20 years of service. They worked under the engineer's drawings, did the spall repair properly, applied the new deck sealer. Structure is good for another decade plus.
X. P.
Property Manager, Laval
★★★★★
New structure pour for an office complex. Chloride-resistant mix, every cover-depth verified, sealer applied on schedule. Property owner is comfortable signing off on the long-term maintenance plan they delivered.
Z. Z.
Facilities Director, Montreal
★★★★★
Tight coordination with the structural engineer on every pour. No improvisation, every detail to the drawings. The engineer remarked on how clean the work was during inspections.
Z. N.
Construction Manager, Terrebonne
★★★★★
Deck overlay during off-hours to keep the structure open for shoppers. Sequenced perfectly with our operations, never closed more than needed. Real understanding of retail timing.
Q. C.
Mall Operations, Longueuil
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