Paving Terms and FAQs

Learn what common paving terms mean and get answers to common questions!


Paving is laying down an asphalt surface on either a dirt, milled or existing asphalt surface. When paving, many factors must be considered including, leveling, water drainage and thickness of the new asphalt layer. The term paving can be applied to concrete as well.


Milling is the process of grinding up and collecting old asphalt. A mill machine leaves a solid but ridged surface to be paved over. The old asphalt or millings can be recycled. About 90% of all asphalt is recycled from millings.


Asphalt concrete is a mixture of sand, gravel, mineral aggregate and a binding agent called bitumen. It is also known as blacktop and is commonly measured in tons.


Building and paving material made from a mixture of broken stone or gravel, sand, cement, and water, that can be spread or poured into molds and that forms a stonelike mass on hardening. It is commonly used for sidewalks, loading docks or other heavy weight bearing areas.


Sealcoat is a mixture of emulsified asphalt, water, mineral fillers, and various other mixtures. Seal coats are applied directly to the surface of an asphalt pavement. It can be applied by rubber squeegee, broom, or mechanical spray.

Crack Seal

Crack seal is a rubber based sealant applied to asphalt cracks at very high temperatures. There are width and depth limitations for crack sealing applications, but it is an effective preventative maintenance measure.

How do I know if my parking lot is in need of pavement maintenance or a full mill and pave?

It really depends on the current condition of your parking lot. Applying sealcoat to a severely failing parking lot will not preserve or protect it, just like using paint to fill a crack in your home’s foundation, won’t work. It covers the problem, but doesn’t fix it. The same applies to asphalt.

Weathered asphalt that is dull and gray with shallow cracks but is structurally sound can be revitalized through a pavement maintenance program that includes crack sealing, sealcoating and a fresh line stripe. It also extends the life of your asphalt.

A failing lot has many indicators a full repave is in order. If your lot has poor drainage and standing water has seeped in and caused instability, there are multiple continuous cracks and places with crumbling or buckled asphalt, or there’s multiple patches and recurrent repair, then it’s probably time to mill and pave.

How often should I evaluate the condition of my parking lots?

You should thoroughly evaluate your lot every calendar year. Traffic, severe weather with extreme temperature changes, and plow damage takes its toll on your asphalt. You should spot check your lot at least once every season, particularly after winter going into spring.

What should I be looking for when I evaluate my parking lot?

Check your lot for trip hazards like cracks, pot holes, crumbled sections, and other liabilities. Your lot should be clearly marked, ADA complian,t and also meet local safety and fire codes. The surface should be even and drains should be cleared of debris. There should be no significant puddles or “perma-puddles” on your property.

When is the best time to address my parking lot issues?

Today! The longer you wait, the more complex (read: expensive) the solution will be. There are many instances when short-term fixes will be appropropriate. Do not confuse that approach with a proactive pavement maintenance program executed over time. Save time and money and prolong the life of your existing asphalt by addressing your parking lot issues today.

How much do your services cost?

There are many variables that determine final costs. The size and condition of the lot are the two most important factors. The needed scope or scopes also factor prominently. Parker Line Striping is among the most competitive paving and pavement maintenance contractors in the country. We work within your budget while providing quality workmanship and outstanding customer service. It all begins with the evaluation so don’t delay.

Should I get multiple estimates before choosing a paving or pavement maintenance contractor?

Of course budgets rule the day but don’t forget to do your homework and ask questions. The lowest bid may end up costing more in the end due to work that needs to be redone or even unethical practices, while the highest bid doesn’t guarantee the best results. Choosing a reputable, experienced contractor means you have a true partner dedicated to successful outcomes. Call us for an evaluation, a bid request or just to ask a question. The team at Nation Pavement is ready to answer your questions and get to work.

Contact Our Parking Lot Line Striping Professionals

Call us at the number below or use our online form to learn more about our parking lot line striping services and to receive a free estimate for your lot.

Contact Parker Line Striping

lf you want to work with a company you can trust to manage your line striping needs,reach out to Parker Line Striping today!