Yes, with these limitations: Do not use on exterior floors with drainage of less than 1/4" per foot. And do not use on shower floors or in submerged applications, or on floors subject to standing water.
Mapeguard UM is approved for exterior applications with some limitations; please consult the Technical Data Sheet for details. Mapeguard UM 35 is not approved for exterior applications.
Yes, it can be used for sound reduction, crack isolation, waterproofing and vapor management. However, when using Mapesonic 2 for vapor management, do not use MAPEI SM Primer or MAPEI SM Primer Fast; instead, use MAPEI HM Primer. If there are seams, the use of Mapetape BB tape is also necessary for waterproofing and vapor management.
Yes, with these limitations: Tile must be installed per installation standards published in the most current TCNA Handbook, ANSI 108 specification. And if the OSB is weather-beaten or delaminated, it must be properly overlaid with a cement backer unit or an additional layer of subfloor.
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