Is stamped concrete a good idea on a driveway?

Can a whole driveway be stamped, or only the border?

Both get done. A full stamp covers every square foot of the drive. A border layout stamps a band along the street, across the front of the garage and down the edges, and leaves the middle as a broom-finished field. For most driveways here the border is the better answer, and a crew that does stamped concrete in Henderson will usually lay it out that way first.

The money explains part of it. Stamped work runs $16 - $24 per sq ft installed, against $8 - $12 per sq ft for a plain broom-finished driveway, so on a two-car drive the field is most of the square footage and most of the savings. The rest of what stamped concrete costs here is on the prices page.

The bigger reason is where a driveway wears. The car sits on the field every night and most of the drip and salt lands there, and a broom finish hides that kind of wear far better than a pattern does. The band frames the drive from the street, which is the view that matters, and a shallow pattern there can take the turning it gets.

A full stamp earns its keep in a narrower set of cases. A short drive in front of a house with some presence, where the driveway is half the front yard, is one. A courtyard drive that works more like a patio with a car parked on it is another, and so is a circle drive, where nobody backs and turns in the same spot twice.

What do tires do to a stamped pattern?

Tires wear a stamped surface mostly where they turn. The two worst spots are usually at the garage door, where a car swings in and stops, and at the street, where every exit turns the wheel on the same few feet of concrete. That is where a pattern tends to go dull first, sealer and all.

A car rolling straight in and out does little harm. A tire scrubbing sideways while the wheel turns is what grinds at a texture, and a deep one gives it more to grind. So the patterns that go where cars turn are generally the shallow ones, an ashlar slate or a wide flagstone, and a deep texture is a poor fit for the garage-door and street ends of a drive.

The flip side is useful. Where the tires never go, along the outer edges of a border or the strip beside the walk, the pattern can be as deep as you like. Put the showy texture there and keep the turning zones plain or shallow.

Does a stamped driveway need to be thicker or built differently than a stamped patio?

The slab is the same one any driveway gets, four inches of air-entrained concrete on a compacted gravel base, covered in how thick a driveway should be. What changes is the layout and the pour day.

On a patio the joints only have to land on the pattern’s grout lines. On a driveway they also have to follow the drive’s own grid, the panel spacing that keeps a slab of that width from cracking where it likes. So the layout gets drawn twice before the forms go in, once for the stones and once for the slab, until the two agree.

The apron still follows the rules for a new concrete driveway in Henderson, including the city’s say in how it meets the walk. A stamped band at the street has to work within that slope, which is one more reason a border gets drawn with the apron in mind rather than laid on afterward.

Pour day is the real difference. Stamping happens in a window of about an hour on a warm day, and a driveway is a big slab to stamp in an hour. A full-stamp drive means a bigger crew, a pour broken into sections, or both. A border layout lets the finishers stamp the band while the field gets a broom finish right behind them, which is a pour a normal crew can hit cleanly.

What do winter salt and a parked engine do to the color and sealer?

Salt and meltwater generally wear on the sealer first, and the sealer is there to take that hit so the color underneath does not have to. Slush tracked in off US 41 and the bypass lands at the street end. A warm engine parked overnight melts what it carried home and drips it onto the same spot below the car. Both tend to show up as dull, whitish patches in the sealer before the color itself fades.

The engine puddle is the one people notice. A car comes home in January with the wheel wells packed, sits over the same few square feet all night, and by morning there is a salty stain right where the car always parks. On a broom field that spot usually hoses off. On a stamped surface it is often the first place the sealer gives out.

That is also why the street band tends to need resealing before the rest. It takes the plow spray along with the slush and the first turn out of the drive. A reseal runs $350 - $700, and on a border layout much of the square footage that needs it is that front strip. The page on stamped concrete covers how often the whole surface needs it.

Where do the control joints go when the pattern is on a driveway?

On the grout lines, wherever the pattern and the drive’s panel spacing allow it. A saw cut through the middle of a stamped stone looks like a mistake. Cut along a grout line it disappears into the pattern.

The rest of the joint plan:

• An expansion joint where the drive meets the garage floor, and another where it meets the sidewalk, so the slab can move without shoving either one.
• Control joints across the field at the spacing the width calls for, cut the same day or the next morning.
• A joint at the seam between a stamped band and a broom field. It is a natural place for the slab to move, and a cut there keeps the break straight and out of sight.

A crack reads louder through a pattern than through a broom finish. The eye follows the stones, and a line wandering across them breaks the whole picture. On a plain field a hairline crack near a joint is barely there. A border-and-field layout puts most of the square footage, and so most of the cracks a Henderson clay lot will produce, in the part of the drive where they hide best.

Can the border be added to a driveway that is already poured?

Yes, as a separate pour beside the old drive or at the apron. The old slab itself cannot take a pattern, because concrete stamps only while it is fresh, and a thin stamped coating over an old drive has the same problems it has on an old patio, covered in the questions on the stamped concrete page. What does work is a new stamped strip poured alongside the existing drive, as a widening or an edge band, or a new stamped apron where the old one has heaved and needs to come out anyway.

Each of those gets its own joint against the old slab, and the old slab has to be sound enough to stay. If the field is cracked and dropping, the drive needs replacing before it needs a border.

Expect a color difference. A new stamped band is supposed to contrast with the field, but the field is years of weather and tire marks while the band is fresh, and the gap between them reads differently than it would on a pour where both went in the same day. Seeing a sample against the actual drive, in daylight, settles most of that.

Which stamped look reads right on a Henderson house?

The house decides more than the pattern book does. A mid-tone earth color in a shallow stone pattern suits nearly every street in town, and on most Henderson houses a stamped band at the street and across the garage front gives the drive its look while the plain field takes the wear.

On the brick ranches on the East End, the drive is long, flat and in full view from the street. A red or tan brick house picks up a warm earth-tone band well. A full stamp across that much driveway tends to compete with the brick instead of framing it.

The older houses on Main and Center Street usually have short drives and a front walk that matters as much as the drive. There a stamped walk and a stamped apron that match each other do more than a stamped drive on its own, and a short full-stamp drive can make sense.

In the newer subdivisions toward the bypass the houses sit close together and the drives run side by side. A border keeps one drive from looking busy next to its neighbors, and the band at the street is what people see driving past.

Whatever the house, lean toward a mid-tone. A driveway collects tire marks and grit that a patio never does, and a very dark or very pale color shows every one of them. On most of these houses the border does the work, and the field stays plain.