MB Home Improvements

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Why is my asphalt turning grey and brittle?

A straight answer first, then what you can safely check yourself and when to get a pro. Free estimates from a vetted MB pro near you.

Asphalt turns grey and brittle because UV light and weather oxidize the binder, the black glue that holds the stone together. As the binder dries out, the surface fades, becomes porous and starts to crack and ravel.

Grey alone is mostly cosmetic. Grey plus crumbling, wide cracks or standing water means moisture is reaching the base underneath, and the fix changes from a seal coat to patching first. A pro needs to look at it to tell which stage you are at.

Why it happens

Fresh asphalt is black because the binder coats every stone. Florida's intense UV and heat slowly break that binder down. Daily wet-season thunderstorms then wash the oxidized film away and leave bare aggregate showing, which is the grey, rough look you see.

Once the surface is dry and porous, it loses flexibility. Heat expansion and traffic then open hairline cracks. Water enters those cracks and softens the base underneath, and the pavement breaks up from below. Oil and fuel drips soften the binder further, which is why parking spots often fail first.

A seal coat is the protective layer that slows this cycle. It shields the binder from sun and water, but it only works on pavement that is still sound. Sealing too early on brand-new asphalt, or sealing over already-broken pavement instead of patching it, are the two common ways the work fails.

What you can check yourself

Look at the colour and texture

Walk the edge of the driveway or lot and look at the surface. Even grey with a rough, sandy feel suggests oxidation. Loose stones collecting along the edges suggest the binder is failing.

Do a water test

Pour a little water on a dry patch. If it soaks in quickly instead of beading or running off, the surface has become porous and is losing its protection.

Map the cracks

Look for hairline cracks, wide cracks, and cracks linked in a web pattern like alligator skin. Take photos so the pro can see what you see. Hairline cracks are usually a sealing job. A web pattern points to base failure.

Check after a rainstorm

Look for puddles that stay for hours, edges washing out, or weeds growing through cracks. These show where water is getting in.

Note oil spots and the last seal date

Spots under parked vehicles need special priming before any sealer. Knowing when it was last sealed, or that it never was, helps the pro judge the surface.

When to call a pro

Call a pro if you see crumbling edges, soft or sunken spots, potholes, alligator cracking, or cracks wide enough to catch a pencil tip. Sealer painted over these just hides the damage, and the water keeps getting in. They need patching or repair first.

Painting and pressure washing need no state licence in Florida, but local business tax receipts may apply. For deeper pavement or base repair, ask the pro how the work is classed, and verify any licence on the Florida DBPR website or with your local building department. Your HOA or condo association may also need to approve work on shared driveways. We match you with a vetted pro near you and book the visit.

Your MB pro handles the permit when the job needs one. You can look up a contractor's license at Florida DBPR.

What a pro will do

  • Inspect and advise honestlyYour MB pro will tell you whether the pavement is ready for sealing or needs repair first. Ask them to explain which sections fall in which group.
  • Clean and fill cracksCracks are cleaned out and filled with a rubberized filler so water cannot reach the base. Ask what filler is used and whether it is allowed to cure before sealing.
  • Patch potholes and edgesBroken areas are cut out and patched rather than coated over. This is the step that decides how long the seal coat lasts.
  • Prime oil spots and apply the seal coatOil stains are primed so the sealer bonds, then the seal coat is applied by squeegee or spray. Ask about how many coats, weather limits and how long you must keep cars off.
  • Restripe if neededOn parking lots and private roads, line striping and markings can be redone once the coating has cured.

How it works

  1. Step 1

    Tell us what you need

    Call or send the short form with your city and the job. Estimates are free.

  2. Step 2

    We match you with a vetted pro near you

    We pick a vetted pro from our network who works in your part of Florida and book the visit.

  3. Step 3

    Your pro gives a free estimate and does the work

    Your MB pro looks at the job and gives you a free estimate. You decide whether to go ahead — and we stay your point of contact.

Related questions

Can I just seal it myself when it turns grey?
You can, but the prep decides the result. Unfilled cracks, unprimed oil spots and sealing over broken areas are the usual reasons for peeling or early failure. A pro can assess the surface first, and your free estimate will show what it needs.
Is it too early to seal new asphalt?
Yes, it can be. New asphalt needs time to cure before sealing, and sealing too soon can trap oils and cause problems. Ask your pro how long to wait for your pavement.
What affects the cost of sealing?
The main factors are the size of the area, how many cracks need filling, how much patching is needed, oil spot treatment, access, and whether striping is included. Your MB pro gives a free estimate after seeing the pavement.
How soon can I drive on it afterward?
Keep traffic off until the pro says the coating has cured. Returning too soon causes tire marks and damage to the fresh coat. Cure time depends on the weather, so follow what your pro tells you.

Request a free seal coating estimate

Tell us what's going on. We'll match you with a vetted pro near you.

  1. 1Tell us what you need.
  2. 2We match you with a vetted pro near you.
  3. 3Your pro gives a free estimate and does the work.

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