Yes, DAP Weldwood multi-purpose and specialty floor adhesives are generally compatible with radiant-heated floors, provided you follow specific installation rules: Turn off or lower the radiant heating system (typically to cool or ambient room temperature, around 65°F–72°F) before and during the installation; Wait at least 48 to 72 hours (or the manufacturer's specified cure time) after installation before gradually raising the temperature of the radiant system—usually increasing it by no more than a few degrees per day to prevent thermal shock to the adhesive and flooring; Ensure the specific floor covering you are laying (such as VCT, carpet, cork, or tile) is also rated by its manufacturer for use over radiant heating.