Concrete garage floors built for Kitchener use
A slab that has sat under a Kitchener garage since the 1960s or 70s is not automatically a problem, but it is very likely missing something that matters now: a vapour barrier between the concrete and the ground beneath it. A slab is porous enough that ground moisture travels through it steadily unless something stops that path, and a vapour barrier is the only thing that does. Coat over that condition without checking first, and the moisture has to go somewhere, usually straight into a blister under the new finish.
Epoxy and polyaspartic are not really rivals, they cover different stages of the same system. Epoxy takes a day or more to cure but can be built to manage moisture as a base coat, while polyaspartic cures in hours and resists both hot tires and UV fading far better. Most of what we build in Kitchener pairs an epoxy base handling the moisture question with a polyaspartic topcoat taking the actual traffic.
Tire rubber contains plasticizers that migrate outward once the tire heats up from driving, and if the coating underneath has not finished curing, those compounds bond straight into it, leaving soft, dark marks at the tire path. Prevention comes down to timing, not product choice: keep vehicles off until the full cure period has passed.
Fibre runs through the whole pour for shrinkage control, while rebar goes in only where it is structurally needed: across backfill from the house's own foundation dig, or beneath a vehicle lift. Does an attached garage really need driveway-level winter protection? In Kitchener, yes, since an unheated garage still follows the temperature outside closely enough for real freeze-thaw cycling, and tire salt builds up on the same narrow patch of floor instead of spreading the way it would outdoors. That is why the concrete underneath matches our concrete driveways. Explore more concrete garage floors projects, or see the full range of what we build across Kitchener.
Waterloo and Cambridge garages of the same vintage are missing the same barrier, and they get the same test before anything is bonded down. See garage floor coatings in Waterloo and concrete garage floors in Cambridge.
Old detached garages down London laneways need the pour planned around access before anything else, covered on concrete garage floors in London.