2103.2.3 Mortars for ceramic wall and floor tile.
BC § 2103.2.3
Portland cement mortars for installing ceramic wall and floor tile shall comply with ANSI A108.1A and ANSI A108.1B and be of the compositions indicated in Table 2103.2.3. Table 2103.2.3Ceramic Title Mortar Compositions Location Mortar Composition Walls Scratchcoat1 cement; 1/5 hydrated lime; 4 dry or 5 damp sandSetting bed and leveling coat1 cement; 1/2 hydrated lime; 5 damp sand to 1 cement 1 hydrated lime, 7 damp sandFloorsSetting bed1 cement; 1/10 hydrated lime; 5 dry or 6 damp sand; or 1 cement; 5 dry or 6 damp sandCeilingsScratchcoat and sand bed1 cement; 1/2 hydrated lime; 2 1/2 dry sand or 3 damp sand
