Parking Lot Sealcoating in Cedar Rapids, IA

Parking lot sealcoating applies the same protective coat used on driveways to a lot's drive lanes, stalls and entrances, and in Cedar Rapids it matters because lots take plow blades, salt and brine every winter as well as open sun every summer. The city alone keeps 6,000 tons of snow-fighting material and 10,000 gallons of brine on hand for its streets, and private lots are plowed and treated on their own schedules. A lot sealed on a regular cycle, with cracks sealed first and stalls restriped afterward, keeps its surface tight and its layout readable. Per-square-foot prices are on the cost page.

A lot runs on a shorter cycle than a home drive. A commercial contractor's published guidance puts lots on a two-to-four-year cycle, and SealMaster recommends two coats with a third on entrances, exits and drive lanes. Entrances and the lanes in front of loading doors take the most turning and plow scraping, so that third coat is where the budget goes furthest. Parking lot sealcoating on the June to August calendar also means booking early, since the dependable window at the airport station is only about three months long.

Winter sets the prep list. Plow blades catch raised crack edges and patch seams, and snow storage corners stay wet well into spring. Before sealing, a lot needs a hard sweep, oil-spot primer at the head of the stalls and crack sealing in the lanes. The city asks businesses as well as homeowners not to push or blow snow from parking lots into public streets, so snow piles stay on the lot; the pavement under them deserves a close look for soft spots before any sealer goes down.

Lots are billed for stormwater by their hard surface. Cedar Rapids charges one Equivalent Residential Unit for each tenth of an acre of impervious area, about 4,356 square feet, and the FY24 rate was $0.2631 per ERU per day regardless of land use. Sealing does not change that count, so it has no effect on the bill. Paving a gravel overflow area does. The city runs a cost-share program for stormwater practices and accepts ERU reduction requests, both worth reviewing before an expansion.

Sealer type matters more on a lot where people live. The U.S. Geological Survey reports that house dust in apartments next to coal-tar-sealed lots had PAH levels 25 times higher than in apartments beside lots with other surfaces. Coal tar is legal in Iowa, so the product decision rests with the owner or manager; asking for an asphalt-emulsion sealer in writing and checking the product on the invoice settles it.