Parking Lot Maintenance FAQs2021-12-18T19:40:04-06:00

Frequently Asked Questions

We understand that parking area maintenance is only a small part of your job, but it is our entire job! We’ve compiled some of the most frequently asked questions about our services and provided answers below. If you have any other questions please let us know. We’re also here for you if you are ready for a quote or existing clients can use our Client Portal to log in and manage their requests.

Are accessible parking spots required?2020-10-03T21:43:13-05:00

Depending on the size of the lot, yes. Please see the chart below.

Total Required Parking Spaces
Minimum Number of Accessible  Parking Spaces Required
1 to 25 1
26 to 50 2
51 to 75 3
76 to 100 4
101 to 150 5
151 to 200 6
201 to 300 7
301 to 400 8
401 to 500 9
501 to 1,000 2 percent of total
1,001 to over 20, plus 1 for each 100 over 1,000
Can I just get a wet scrub for my parkade?2021-12-18T20:13:16-06:00

Unless you are getting regular monthly or bi-weekly service, every parkade cleaning needs to start with power sweeping to remove built-up dirt and debris. Without this first step, the scrubber won’t be able to properly clean the surface of the parkade. Even with regular service, there may be times where the sweeper needs to run first.




Can you just use sealer on the asphalt cracks?2021-12-18T19:34:09-06:00

For small cracks smaller than 25 mm, sealer can be used. For larger cracks, even a slurry seal will not fill cracks in the pavement. The aggregate in a slurry seal is meant for minor imperfections, not cracks. Cracks come in many sizes, and we repair cracks smaller than 2.5 cm wide, but ideally less than 2 cm. Larger cracks need a different application. Crack filler helps to slow the progress of pavement damage. Once it has started, the damage tends to progress at an increasing rate. The sooner cracks are filled, the longer you can delay the damage.




Do you need to clean the lot before sealing it?2021-12-18T20:28:12-06:00

Yes, the lot needs to be clear of litter, debris and sand before starting to do crack filling or seal coating to ensure proper adhesion.


Do you need to seal coat after crack filling?2021-12-18T12:12:47-06:00

No, you can only have crack filling done. However, if you have significant cracking slurry seal coating may help to prevent more cracking.


Do you seal coat driveways?2021-12-18T20:34:28-06:00

Not at this time, our focus is on parking lots.



Does it matter if I do pressure washing or power scrubbing for a parkade?2021-12-18T20:02:09-06:00

The main difference between pressure washing and power scrubbing is where the water goes. With pressure washing all the dirt, oil and grime that is being lifted out of your parkade floors only has one place to go – down the drain. You’re simply moving the problem from one area of your building to another.

With power scrubbing, the water is sucked up into the reservoir on the machine and doesn’t end up down the drain. You hire us to remove the grime, not just move it. However, there are some parkades that a power scrub isn’t possible and a pressure wash is the only way to get at the grime. We also do pressure washing of vertical surfaces that the power scrubber can’t get to.


How big do parking spaces need to be?2020-10-03T21:43:13-05:00

In the city of Winnipeg, spaces must be a minimum of 8′. All spaces must add up to at least 28′ (ie.8′ wide and 20′ deep, or 10′ wide and 18′ deep). The average space is typically 9′ x 20′. Accessible parking has a minimum width of 10′.

How late in the year do you do painting services?2020-12-27T11:56:43-06:00

We have painted almost every day of the year. However, colder surface temperatures or wet surfaces inhibit proper paint adhesion. In particular, exposed concrete needs warmer weather to ensure your painting project will last.

How long after seal coating can you paint new lines?2021-12-18T20:31:09-06:00

Ideally, you should wait as long as possible to make sure there are no chemical interactions between the seal coat and the line paint. We recommend at least 12 hours between applications, but 24 hours or longer is better.


How long does a cleaning take?2021-12-18T20:02:36-06:00

Cleaning time depends on a few factors:

  • how much dirt there is
  • what condition the surface is in
  • how much area needs to be cleaned
  • the layout
  • traffic/obstacles in the way during cleaning

With that in mind, most cleanings take between 2-5 hours.

How long does it take crack filler to dry?2021-12-18T19:29:10-06:00

Crack filler dries very quickly. The rubberized material will cool down within 15 to 30 minutes.


How long does it take for seal coating to cure?2021-12-18T12:18:51-06:00

After the seal coat has been applied, it must be allowed to fully cure before traffic is allowed on again. During the cure time, the sealer is still bonding to the existing asphalt, and vehicles can break those weak bonds. Curing may take between a few hours and a few days, depending on conditions such as temperature and humidity. For optimal curing rates, we recommend seal coating asphalt from July to September in Winnipeg.



How long does it take for traffic markings to dry?2020-10-03T21:43:13-05:00

It depends on a few factors, but in general it is dry in 15 minutes and safe to drive on in 20 minutes.

Is crack fill a permanent solution?2021-12-18T19:31:30-06:00

No, crack filler is only a temporary delay on the damage already existing within the asphalt. Filling the existing cracks will prevent water from entering the cracks and causing further damage during thawing and freezing. Cracks that get filled will likely need to be filled again. With time, traffic, and weather cracks in your pavement slowly start to pull apart causing them to open again. Sealing should be considered a part of your routine pavement maintenance plan.


Is there a discount if all the stalls aren’t empty for a cleaning?2021-12-18T20:05:57-06:00

When the parking lot or parkade isn’t completely empty, it actually causes more work for our crews and makes the job take longer. We also can’t do as good a job as we would like. We simply advise for the best cleaning possible to make sure vehicles are moved before we get there and for scrubbing, keep cars off the surface until it dries.


What do you paint?2020-12-28T10:04:32-06:00

Clean Sweep does line painting for almost any horizontal surface, and a few vertical surfaces.

We can paint any of the following:

  • outdoor parking lots
  • indoor parking garages
  • covered parkades
  • sports courts
  • playgrounds
  • parking stall numbers
  • traffic directional markings
  • warehouse lines
  • factory safety lines
  • and many more uses!

You can find some examples of our work here.

What is crack fill?2021-12-18T19:26:47-06:00

Our hot-pour crack filler is a flexible, rubber-like commercial-grade product that is used to repair cracks in asphalt pavements. It starts out as a solid, rubber brick which we melt down in a special kettle and applicator that is heated to 400 Fahrenheit. Once applied in the cracks, it hardens up deep inside and helps to keep water from penetrating the asphalt and causing further damage. The fill remains semi-flexible and expands and contracts with the asphalt.

It is not a permanent solution, but just a way to buy extra time for your asphalt.





What is Slurry Seal Coating?2021-12-18T12:09:02-06:00

Slurry seals and asphalt sealing are very closely related maintenance tasks asphalt. Many paving contractors and customers use the two terms interchangeably. The main difference between the two is the additional component in slurry seals; aggregate.

Over time, asphalt breaks down from water and UV exposure and the bond between the aggregate weakens. This is when you see chunks of aggregate crumbling from the surface. Asphalt sealing is simply applying a liquid spray over the damage. Any small depressions will remain across the surface, giving the water a place to pool up again and continue the process. The aggregate in a slurry seal will help to fill in those small cracks and gaps and promote a more even surface. It will not repair large-scale damage.

In fact, there are three different categories of slurry seals depending on the size of the aggregate added to the seal coat. Type I slurry seals contain fine sand aggregates, with diameters less than 2.36mm. This is most commonly used to treat slow-moving and lower traffic areas such as parking lots.

Type II slurry seals have larger aggregate particles with maximum diameters of 6.4mm. The larger aggregate allows the seal to repair minor ravelling and other more advanced states of wear usually found on higher traffic areas such as roads. It would not be recommended to use this slurry seal on parking lots, since the larger aggregate pieces can cause tire scuffing as cars turn in and out of parking spots.

The last type is Type III slurry seals which contain coarse aggregate chunks. These seals are used to compensate for more severe types of surface defects. The large pieces of aggregate can also fill depressions in the surface, thus reducing the amount of water ponding.

We use a Type I slurry seal for our parking lot maintenance.


What is the difference between Asphalt Sealing and Sand Slurry Seal Coating?2021-12-18T11:56:23-06:00

Asphalt Sealing is typically the more widely offered asphalt-protection method for residential properties in Winnipeg and Manitoba. This is because it generally has a lower cost per square foot. The finished appearance has a significantly glossier look and is very slippery when wet, unlike the sand slurry seal coat which is flat black and textured for a non-slip finish. Unfortunately, even the highest quality oil-based asphalt sealer doesn’t last more than six months to one year and needs to be freshened up more annually.

Unlike Asphalt Sealing, Sand Slurry Seal Coating has a non-slip, jet black texture once it’s completely cured. Despite the fact that the upfront costs for sand slurry seal coating are higher than for asphalt sealing, the cost per year of service is much lower and will save the property owner significant maintenance costs over the long run. A well-done and properly maintained professional sand slurry seal coat application should last you for about four to six years without requiring additional applications or expensive repairs. Sand slurry seal coat has up to 2.5 pounds of silica sand blended into the water-based emulsion to give it its signature non-slip and jet black texture.

Once applied, both asphalt sealing and sand slurry seal coating need about 24 hours to cure.


What is the difference between pressure washing and power washing?2021-12-18T20:26:26-06:00

The two terms are interchangeable. Don’t be concerned about the term “power” or “pressure”, both indicate water that is pushed through high-pressure hoses by a compressor. We use the term pressure washing so it doesn’t get confused with our power scrubbing service. Power scrubbing uses a ride-on machine (imagine a smaller Zamboni-type machine).




What’s the difference between a parking lot cleaning and a parkade cleaning?2021-12-18T20:00:24-06:00

Both cleanings start by sweeping up all the loose debris with a power sweeper, but for the indoor parkades, we also use a wet scrubbing machine to get the built up grime and help remove odours.

Indoor and covered parking lots don’t get access to nature’s bath – rain. We need to bring in the bath.

Our clients often comment on how much better their parkades smell after a cleaning. You might even be able to eat off your parkade floors when we’re done with it – but we still wouldn’t recommend it!

When can pressure washing be done?2021-12-18T20:21:10-06:00

For indoor heated spaces, pressure washing can be done year-round. For outdoor locations, since we are using water it needs to be above freezing but ideally above 7 degrees.


When is seal coating recommended?2021-12-18T12:10:29-06:00

Seal coating is not meant to rejuvenate deteriorating parking lots, it is meant to extend the life of your lot. Seal coating should be done 2-3 years after it is first laid down and then every 4-6 years after that.

If your parking lot is in great disrepair with a lot of giant potholes and cracks all over, then it might be a good idea to invest in a new parking lot or asphalt overlay.




Will you be able to see the repaired cracks after seal coating?2021-12-18T12:50:56-06:00

Yes, the seal coat will add a layer to the existing surface but you will still see both the previous lines and any crack repairs. Both line paint and crack fill is smoother than bare asphalt.


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