Sealcoating is worth doing on the right driveway at the right time, and a waste of money on plenty of others. Here is the case against, including the parts that are particular to sealing asphalt in a hot, wet, heavily wooded place.
This is the complaint nobody warns people about. A cured coat is stable, but for the first couple of weeks in real heat the surface stays soft enough that hot tyres lift a little of it, and it prints onto a garage floor, a concrete apron, or the road.
It is rarely a defect and it stops once the coat has fully hardened. It is also genuinely annoying, it is far worse in July than in October, and it is a real argument for booking the shoulder months instead of the middle of summer. Anyone who tells you a fresh coat never tracks in ninety degree heat has not done many.
A sealed surface is smoother than the one underneath it, and smoother means less grip when it is wet. On a flat suburban drive nobody notices. On the steep drop to a basement garage that half of north metro has, it is worth thinking about, and worth mentioning if anyone in the house is unsteady on their feet.
Sand can be added to the mix for grip on a steep drive. It changes the finish slightly and it is a conversation to have before the job rather than after the first rain.
Coat on coat on coat builds a film thicker than it was ever meant to be, and a thick film cracks in its own right, in a fine pattern that looks like the asphalt failing when it is only the sealer.
Shaded drives are the ones this happens to here. They keep their colour for years because there is no sun bleaching them, so they look fine, and people seal them on a two year calendar anyway because that is what the internet said. The drive never needed it and now it has four coats on it.
A fresh coat makes everything one colour, which is the point, and it also makes a crack that was becoming visible disappear for a year. If a drive is at the stage where you want to be watching a particular section, sealing it takes away your ability to watch.
That is a reason to have the cracks looked at and filled properly before the coat goes on, not a reason to skip the coat.
Sealer is a surface coat. It takes the ultraviolet instead of the asphalt and it keeps water out of a surface that is still sound. It will not bind a drive that is breaking up, close a pothole, or save a section where the base has gone.
On red clay that last one matters more than it sounds. Clay holds water rather than draining it, so a section that has been taking runoff for years can be failing underneath while the top still looks passable. Sealing that is money spent on a colour.
Sealers are not all the same product. Asphalt emulsion and coal tar based products behave differently, weather differently and are viewed differently in different places, and some jurisdictions restrict one of them.
We are not going to pretend to speak for every county in this metro. What is worth doing is asking any contractor what they are putting down and why, and treating a vague answer as an answer.
A sound drive that has greyed out and gone gritty in the sun, with the cracks filled first, sealed in spring or autumn rather than midsummer, on a sensible cycle rather than a calendar. That driveway gets real value out of a coat.
A shaded drive that still looks black, a drive with a failing base, or a drive sealed eighteen months ago does not, and we will say so.
A page arguing against sealcoating owes you the case for it, because never sealing is not free either, it just bills later.
An unsealed drive in full Georgia sun greys, then goes gritty, then starts shedding stone. Once enough of the surface aggregate has gone the water gets down into the base, and on red clay the base holds it. That is the point where the answer stops being a few hundred dollars for a coat and becomes a few thousand for an overlay, or more for a replacement.
Nobody can tell you exactly how many years that takes, and anyone who gives you a number to the year is guessing. What is fair to say is that the decision is a maintenance one, sealing is cheap relative to paving, and the drives that end up needing paving are almost always the ones nobody looked at for a decade.
So the honest position is neither "seal it every two years" nor "sealing is a scam". It is that a sound surface in the sun is worth protecting, and everything else depends on the driveway in front of you.
