How does a traffic deck coating work?
A traffic deck coating is built in layers, and each layer has a job. A primer goes down first when the product calls for one. Next comes the waterproofing base membrane, a rubbery coat that flexes with the deck instead of cracking. The wear coat goes over the membrane, and sand is broadcast into it while it is wet. That sand gives tires and shoes grip. A topcoat locks the sand in place. Open roof levels get a topcoat made for exterior use, since that deck sits in full sun.
The build changes with the traffic in each part of the garage. Turning lanes, entries and exits take the most tire scrub, so they get a thicker wear coat and more sand. Steep ramps take a product made for slopes, because a self-leveling grade is not used on them. Before any of that, cracks get routed and sealed, and joints get backer rod and sealant. Walls, curbs and columns get a bead of sealant in the corner where they meet the deck. Shop and warehouse slabs take a different system, shown on our commercial and industrial epoxy flooring page.
Why do Utah parking structures need waterproofing?
Parking structures sit open to rain, snow, sun and big temperature swings. In a Utah winter, cars drag road salt and slush in on their tires. Road deicers are chlorides, such as sodium or calcium chloride. As the slush melts, salt water soaks into bare concrete and carries chloride toward the reinforcing steel. Keeping chloride out of the slab extends the life of that steel. Freeze and thaw works on every crack and joint, and tires scrub the turns and entries. On a suspended deck, the water that gets through lands on the cars and people below.
Parking structure waterproofing starts with repair, because coatings fail at the prep. Damaged areas get cut back and patched, and cracks get filled. Failed expansion joints get rebuilt or replaced. That parking garage concrete repair has to cure before any coating goes over it. Old coatings and grime come off next. The concrete is then opened to the surface profile the manufacturer calls for. We check the slab for moisture, since the coating has to go on clean and dry. Then the traffic membrane goes down over sound concrete.
What does a parking garage traffic coating cost in Utah?
Price on parking deck waterproofing comes down to 5 things. Square footage moves the number most. Deck condition is next, since spalls, wide cracks, failed joints and an old coating all add repair and prep. The build matters too, because areas with heavy traffic get a thicker wear coat and more sand. Detail work at drains, walls, columns and joints adds hours. Phasing is the last driver. Coating a garage in sections around open parking costs more than coating an empty deck.
Every bid starts with a free on-site estimate. We come out, measure the deck and look at the concrete, the joints and the drains. We also ask how the garage runs, so the phases fit your tenants and your hours. Then you get a written number for the system that fits the structure. Commercial work runs from Ogden south through Salt Lake County, out of our Centerville shop. Call (801) 347-4518 Monday through Friday, 8am to 5pm, and the office will set a time.