b"July 2020 ARDEX FLEXBONE HEATIN-FLOOR HEATING SYSTEMSDedicated to educationtileletter.comand industry service ONLINE NOWnews you need to know Innovative DesignFeature Story32 for Maximum Comfort Merkrete Systems and Energy EfficiencyMerkrete ensures style and sustainability in historic Washington, D.C. hotelTraining & Education56 A day in the life of a trainerBy Robb Roderick, NTCA Technical Trainer The Most ComprehensiveSingle-Source System Solution!ARDEX FLEXBONEHEATfeature storyMEMBRANEFeatured in this issue.CABLES42Coverings 2020:Coverings makes history with virtual THERMOSTATS Coverings Connected trade showBy Lesley Goddin, Editor 56 74 Backed by the ARDEX FLEXBONEHEAT64 One-to-One:Crossville, Inc. System Warranty!Mark Shannon and Noah Chitty84 Tile & Stone:Marble moisture discoloration: don't blame the stone For full system details, please visit By Pavlo Starykov, Star Tile & Stone, LLC 84 94 www.ardexamericas.com.Sponsored by MAPEI Corporation2TileLetter | July 2020FLEXBONE_coverings_advert_0319.indd 1 3/21/2019 1:10:45 PM"