MikePA
Super Moderator
In my experience, driveway sealer can fill cracks up to about an eighth of an inch. Larger than that, you need a crack filler, either a thicker liquid or a caulk like material or, for the big cracks, asphalt patching material. I imagine they don't do it on roadways because of either the cost or the fact that the roadway would have to be shut down while the sealer cures/drys. It would also mean repainting the lines, an additional cost.
A quick check at AccuWeather reveals that it does get below freezing in Mt Washington, KY.
A quick check at AccuWeather reveals that it does get below freezing in Mt Washington, KY.