Is ASTM F2170 the same as a moisture limit for my commercial floor?

No. ASTM F2170 is a method for determining relative humidity in concrete using in situ probes, while the acceptable reading comes from the written requirements for the selected flooring system. Review the flooring, adhesive and any moisture control product together because their limits may not match.

Should we retest a slab if our tenant improvement is delayed?

A delay alone does not create one universal retesting requirement. Because test results describe conditions at a particular time and location, the owner and project team should compare the delay and any changed site conditions with the current manufacturer instructions and document their decision.

Can a moisture barrier make any adhesive acceptable?

No. A moisture control layer must be compatible with the adhesive, patch or underlayment and finish flooring used above it. Obtain written confirmation from the relevant manufacturers when the specified system is not clearly addressed in their current instructions.

Why can testing after a moisture barrier be different?

Some tests measure conditions at the concrete surface, and a moisture control layer changes that surface. Some in situ testing methods require drilling into the slab, which can damage a completed barrier, so the product instructions should define the next verification step.

What should I send when requesting a commercial flooring estimate?

Share the full project address, approximate measurements, proposed material, intended use, schedule constraints and any available slab or moisture reports. Contact CC Floors Austin at 512-769-2292 or dan@austinflooringco.com to request a written scope review and estimate.

Commercial Slab Moisture Retesting Guide

Learn how commercial slab moisture tests, adhesive limits, mitigation systems and retesting decisions support a documented Austin flooring installation.

Does a Commercial Slab Need Moisture Retesting?: Sometimes, yes, but a commercial slab should not be assigned a generic retesting rule. The original report records a moisture condition at particular locations and at a particular Choose the Flooring System Before Chasing a Number: Commercial buyers often ask for one acceptable relative humidity number before they have chosen their full installation system. That approach can create a mismatch. Adhesive limits, flooring limits Build a Moisture Record That a Project Team Can Use: A useful moisture record identifies the project address, test date, test method, individual locations and readings, slab condition, ambient conditions and the person or firm performing the work. In

Contact: (512) 769-2292 | dan@austinflooringco.com

CC Floors Austin | Complete Site Index