Serving Salt Lake, Utah, Davis, Weber, Summit, Wasatch, Tooele & Morgan countiesSister company of SwiftHand Painting · 801-895-3794
From the blog · 2026-08-05

Why We Moisture-Test Every Slab

A coating can outlast tires, salt and dropped tools. It cannot outmuscle water vapor pushing up from the soil. So we measure it first, every time, and choose the primer from the number.

Licensed & insured in UtahOwner-run, sister company of SwiftHand Painting15-Year transferable warrantyDiamond-ground prep, never acid etchServing 130+ northern Utah communities
Why We Moisture-Test Every Utah Slab Before Coating

Where vapor comes from

Water in the soil under a slab evaporates upward through the concrete. In northern Utah that's amplified by spring runoff, months of lawn irrigation, high water tables near the Jordan River, Utah Lake and the Great Salt Lake, and older slabs poured without a vapor barrier. Bare concrete just breathes it out. A coating blocks it — and if the pressure is high enough, the coating loses.

How we test

  • Plastic sheet test for a quick read at the consultation.
  • Calcium-chloride test (ASTM F1869) for emission rate.
  • In-situ RH probe (ASTM F2170) when readings are borderline or the slab is a basement.

What the numbers decide

ReadingWhat we do
LowStandard polyurea base coat
ModerateMoisture-tolerant base coat
HighEpoxy vapor-barrier primer, then the system (adds a day)
ExtremeTalk about drainage or a sump first; we won't coat over a problem

Why this is rare — and shouldn't be

Most one-day installers don't test because a high reading breaks their schedule. That's how bubbled basement floors happen. Ours get tested, and if the answer is 'wait,' we say so.

Instant online pricing

Price your floor in about five minutes

Answer a few questions about the space — size, condition, the finish you like — and our instant quote tool builds a written price on the spot. It takes four to five minutes, not sixty seconds, because an accurate number beats a fast one. Prefer a person? Book a free consultation and we'll measure in person.

Book a free consultation instead

Ready for a floor you never have to think about again?

Get an instant online price in a few minutes, or book a free in-person consultation. No pressure, no sleazy sales pitch — just a written price.