Michigan summers are sweltering and the winters are harsh and unforgiving. Temperature swings require codes of installation. These codes and application procedures are provided by the Tile Council Of America / Exterior and interior Stone installed over metal lath and scratch coat concrete and tuck pointed. ANSI A108.1A. W221-16 STONE Solid Backing, Mortar Bed, Natural Stone Tile - application. Kleeberger Contracting Services.