Sera Sole sits at Swan Falls Road and Stagecoach Way, far enough south that the flatwork here deals with fine high-desert silt rather than the coarser soil further north. Fine silt behaves worse on concrete than coarse soil does, for a reason that is not obvious.
Coarse soil sits on a slab and a good rain moves much of it. Fine silt works down into the pore structure of the concrete and stays, and then foot and vehicle traffic grinds it deeper. That is why a Sera Sole driveway develops a uniform grey cast rather than visible dirt, and why hosing accomplishes very little. Getting it out needs the volume and mechanical action of a proper surface clean, which reaches into the pores rather than skimming the face.
On open flatwork we run a rotating surface cleaner rather than a wand. A wand requires the operator to hold identical distance, angle and speed across a whole slab, which nobody manages, so the result is the faint striping visible on plenty of cheaply washed driveways. A surface cleaner fixes nozzle height and spacing and overlaps its own passes, giving an even result. The wand is used for edges, steps and corners where the machine cannot reach.
Untreated Boise-Kuna canal water carries dissolved iron as well as mineral, and where sprinkler overspray lands on concrete and evaporates, the iron oxidises into the slab as orange-brown staining. Sera Sole's new landscaping means heads set to throw high and wide, so a lot of that water lands on walks and patio edges. Rust is a chemical stain within the concrete rather than dirt on it, and it needs a rust-specific treatment with dwell time. Pressure alone cleans the dirt off the stain and leaves the stain.
With no mature windbreak between Sera Sole and the open desert, patios and back flatwork take wind-driven silt continuously rather than seasonally, and outdoor furniture, grills and shade structures all leave their own marks on a slab that is being sandblasted lightly every afternoon. It is worth doing the patio at the same visit as the driveway, because the setup is already in place and the incremental cost is small compared with a second trip.
Pressure washing is $0.20 per square foot of actual flatwork area. Sera Sole lots average about 0.144 acres, so driveways and patios are conventional rather than sprawling and the total is moderate. Pressure washing is for concrete and hard flatwork. Siding is house washing at $0.18 per square foot as a soft wash, because high pressure drives water behind lap siding into the wall assembly. Two different tools on two different surfaces, quoted separately.
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Fine desert silt worked down into the pore structure of the concrete, then ground deeper by foot and vehicle traffic. It is in the slab rather than on it, which is why hosing accomplishes little. A proper surface clean reaches into the pores rather than skimming the face.
Rust. Untreated canal water carries dissolved iron, and where overspray evaporates on concrete the iron oxidises into the slab. It is a chemical stain within the concrete rather than dirt on it, so it needs a rust-specific treatment with dwell time rather than more pressure.
Wand washing. A wand needs identical distance, angle and speed held across a whole slab, which nobody manages, so you get a zebra pattern. We use a rotating surface cleaner on open flatwork, which fixes nozzle height and spacing and overlaps its passes.
Usually yes. With no windbreak toward the open desert, patios here take wind-driven silt continuously, and the setup is already in place, so the incremental cost is small compared with arranging a second visit.
Pressure washing is $0.20 per square foot of actual area. Sera Sole lots average about 0.144 acres, so the driveways and patios are conventional rather than sprawling and the total comes out moderate. We measure rather than estimate.
No, those are different services with different tools. Siding is a soft wash at $0.18 per square foot, because high pressure drives water behind lap siding into the wall assembly. Flatwork is $0.20 per square foot pressure washing. We quote them separately.
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