Castle Pines Concrete Finishes

Everybody shops finishes. Which texture, which color, what it looks like wet. Fair enough, since that's the part you see. But we'd rather spend the first meeting under the slab than on top of it, because the finish is the last hour of a job whose outcome was decided days earlier by a plate compactor.

Castle Pines sits on wooded, tilted ground in Douglas County, and the lots here rarely hand you a flat, uniform pad to work from. Cut and fill on a hillside means part of your slab may sit on native soil and part on material somebody trucked in. That difference is invisible once concrete covers it. It is not invisible three winters later.

What we do before anybody picks a texture

We dig to firm ground, not to a depth on a form. If the excavation finds soft or organic material, it comes out and gets replaced with road base compacted in lifts, four to six inches at a time, each one run with the plate before the next goes down. Dumping eight inches of gravel and passing over it once looks the same and performs nothing alike.

Drainage next. On these slopes the question is always where water goes when the snow lets loose in March or when a summer cell parks over the ridge for twenty minutes. Slab surfaces get pitched away from the house, roughly an eighth of an inch per foot, and we look at what's uphill of the pour before we set a single form board. A patio that catches hillside runoff and holds it against a foundation is a bad patio no matter how nicely it's troweled.

Then the finish, chosen for the spot

A broom finish is the workhorse and there's nothing second-rate about it. Drag direction matters: the broom gets pulled across the way people walk, so ridges catch a shoe instead of channeling it. Light broom for patios, heavier for a sloped drive.

Hard trowel belongs indoors. It closes the surface tight and dense, which is exactly what you want in a garage or a shop floor and exactly what you don't want outside, where a sealed-up top layer and freeze-thaw make a bad pair. Float finish, that open sandy texture, works on covered porches and pool surrounds where bare feet happen. Salt finish gives a pitted look that sheds water and hides dirt. And rock salt in a climate that freezes twenty times a winter is a debate we usually lose on purpose, since those little craters hold water.

Which finish goes where

Anybody can put a nice broom on wet concrete. The trick is having a slab that still deserves it in ten years. When I look at a failed pour, I've never once thought the problem was the texture.From the crew lead on these jobs

What goes under every exterior slab we pour

• Excavation down to firm bearing, with soft material removed rather than buried
• Compacted road base in lifts, plated between each one
• Surface graded to carry water away from the foundation and off the slab
• Steel on chairs where vehicles run, welded wire mesh only on light-duty pads
• 4,000 PSI air-entrained mix for anything exposed to a Front Range winter
• Expansion material where the pour meets a house, a step, or a column
• Control joints sawed the same day at spacing set by slab thickness

Season, soil, and where the calls come from

Finish quality tracks the weather more than most homeowners realize. A hot, dry, breezy afternoon at 6,450 feet pulls water out of a slab surface fast, and a crew chasing a stiffening surface produces a texture that's inconsistent from one end to the other. So summer pours start at sunrise, we keep evaporation retardant on the truck, and we're honest when the forecast says wait a day.

Late April through October is the working season for exterior finishes, with September and early October the best of it. Cold-weather pours are possible with heated water, non-chloride accelerators, and insulated blankets, and we do them, but we won't place concrete on frozen ground and we won't promise a decorative texture in deep winter.

Around town, Castle Pines North and older parts of The Village at Castle Pines send us replacements where the original base was thin and the surface has scaled. Lagae Ranch, Daniels Gate, and BellaMesa are newer, so those calls run toward additions: extending a patio, adding a walk, matching the builder's texture. That matching is real work, and we pour a sample panel first.