4.1 Moisture emitting from concrete substrates can detrimentally affect the performance of resilient floor covering systems. Most resilient flooring and adhesive manufacturers publish a maximum acceptable level of moisture in which their products can perform satisfactorily. Requirements for single component, fluid-applied membrane-forming moisture mitigation systems to be used, and other related details, are generally included as part of the project plans or specifications and may vary from the minimum recommendations set forth in this practice.

4.2 This practice is intended for use by project design teams who have, in advance of bidding and construction, made a decision to include moisture mitigation within the project specifications and bid documents without any requirement for moisture testing of the concrete slabs after they are placed.

4.2.1 This practice is intended for use after it has been determined that a concrete slab moisture condition exceeds the resilient floor covering or adhesive manufacturer’s requirements, or both, as tested according to Test Methods F1869, F2170, or Guide F2659.

4.2.2 This practice is intended for use on normal weight or structural lightweight concrete slab substrate surfaces.

4.3 Single component, fluid-applied membrane-forming moisture mitigation systems are not intended for use over gypsum-based substrates.

1.1 This practice covers the properties, application, and performance of a single component, fluid-applied membrane-forming moisture mitigation system to high moisture concrete substrates prior to the installation of resilient flooring.

1.2 This practice includes recommendations for the preparation of the concrete surface to receive a single component, fluid-applied membrane-forming moisture mitigation system.

1.3 This practice does not supersede written instructions of the single component, fluid-applied membrane-forming moisture mitigation system manufacturer, the resilient flooring manufacturer, underlayment manufacturer, the adhesive manufacturer, or other components of the finish flooring system, or combinations thereof. Users of this practice should review manufacturer’s technical data sheets and installation instructions for compatibility of system components.

1.4 The following are not included in the scope of this practice:

1.4.1 Moisture mitigation systems that chemically react with any constituent of the concrete to form a gel or crystalline substance within, or on the surface of, the concrete.

1.4.2 Penetrating, water- or solvent-based compounds that do not form a continuous membrane on the concrete surface.

1.4.3 Loose-laid sheet moisture mitigation systems.

1.4.4 Peel-and-stick moisture mitigation systems.

1.5 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 8 on Hazards.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.