Bathtub / Shower Walls / Shower Receptors
This Technical Advisory deals with TCNA Handbook Methods for tile & stone in Bathtub / Shower Walls / Shower Receptors
BATHTUB WALLS WITH NO SHOWERHEAD (Ceramic, Porcelain and Glass Tile) - pages 150-151
Very basic wall installation over gypsum drywall / glass mat gypsum board with Res 1 / Com 1 environmental classification. This method is suitable for Jacuzzi’s, garden tubs, soaking tubs, etc… where very little water gets splashed up onto the walls.
BATHTUB / SHOWER WALLS (Ceramic, Porcelain and Glass Tile) – pages 152 – 158
All of these methods (B411, B412, B419, B425, and B430) in this section can be used over pre-fabricated bathtubs or shower pans
Methods B411, B412 require a mandatory membrane (either a water resistive barrier behind the system [e.g. 15 lb felt] or a surface applied ANSI A118.10 compliant waterproofing membrane).
Methods B419, B430 make provision for an optional membrane.
Method B425 does not require the use of a membrane since the board (cementitious-coated extruded foam backer board) is the substrate.
When seats, curbs, niches, etc… are utilized within these methods; waterproofing must be included and properly detailed.
Method B412 allows for various environmental classifications depending on the adhesive mortar used. If latex thin set mortar or epoxy adhesive is used, the method achieves Res 1, 2, 3, 5 / Com 1, 2, 3, 5 classification. If an organic adhesive is used, the method achieves a Res 1, 2, 3 / Com 1, 2 classification.
SHOWER RECEPTORS (Ceramic, Porcelain and Glass Tile) – pages 159 – 169
The environmental classifications really help the specifier to determine which wall constructs should be built for the intended application. Several of the methods display the versatility mentioned in previous advisories. For example, methods B415, B421, B422 make provision for different uses / environmental classification which are dependent on installation materials selection.
All of the methods require a “shower pan membrane”. In addition, methods B414, B415 require a mandatory membrane on the walls (either a water resistive barrier behind the system [e.g. 15 lb felt] or a surface applied ANSI A118.10 compliant waterproofing membrane).
Methods B421, B422 require a mandatory continuous surface applied ANSI A118.10 compliant waterproofing membrane on the walls and shower floor.
Methods B420, B431 make provision for an optional surface applied waterproofing membrane on the walls complying with ANSI A118.10.
Method B426 does not require the use of a membrane on the walls since the board (cementitious-coated extruded foam backer board) is the substrate.
When seats, curbs, niches, etc… are utilized within these methods, waterproofing must be included and properly detailed.
COMMON SHOWER CONFIGURATIONS (Ceramic, Porcelain and Glass Tile) – pages 169 – 171
This is a new section. It includes details and information from previous TCNA handbook versions that were included in the “Tile Tubs, Fountains and Curbs” section. It now includes new details and information.
The new details depict:
How shower pan membranes should be placed at corners (both inside and outside), jambs and curbs (properly folded and brought to the correct height)
How backer board is placed and fastened over shower pan membranes (so that they are not punctured).
How shower seats (and other shower “bump-outs”) are waterproofed and integrate with the shower pan membrane
SHOWER RECEPTOR RENOVATION (Ceramic, Porcelain and Glass Tile) – page 172
Method TR418 depicts mortar bed walls / mortar bed floor. Wall method B414 includes the complete installation specification for the walls.
Method TR420 depicts backer board walls / mortar bed floor. Wall methods B415, B426, or B431 include the complete installation specifications for the walls.
BATHTUB WALLS WITH NO SHOWERHEAD (Ceramic, Porcelain and Glass Tile) - pages 150-151
Very basic wall installation over gypsum drywall / glass mat gypsum board with Res 1 / Com 1 environmental classification. This method is suitable for Jacuzzi’s, garden tubs, soaking tubs, etc… where very little water gets splashed up onto the walls.
BATHTUB / SHOWER WALLS (Ceramic, Porcelain and Glass Tile) – pages 152 – 158
All of these methods (B411, B412, B419, B425, and B430) in this section can be used over pre-fabricated bathtubs or shower pans
Methods B411, B412 require a mandatory membrane (either a water resistive barrier behind the system [e.g. 15 lb felt] or a surface applied ANSI A118.10 compliant waterproofing membrane).
Methods B419, B430 make provision for an optional membrane.
Method B425 does not require the use of a membrane since the board (cementitious-coated extruded foam backer board) is the substrate.
When seats, curbs, niches, etc… are utilized within these methods; waterproofing must be included and properly detailed.
Method B412 allows for various environmental classifications depending on the adhesive mortar used. If latex thin set mortar or epoxy adhesive is used, the method achieves Res 1, 2, 3, 5 / Com 1, 2, 3, 5 classification. If an organic adhesive is used, the method achieves a Res 1, 2, 3 / Com 1, 2 classification.
SHOWER RECEPTORS (Ceramic, Porcelain and Glass Tile) – pages 159 – 169
The environmental classifications really help the specifier to determine which wall constructs should be built for the intended application. Several of the methods display the versatility mentioned in previous advisories. For example, methods B415, B421, B422 make provision for different uses / environmental classification which are dependent on installation materials selection.
All of the methods require a “shower pan membrane”. In addition, methods B414, B415 require a mandatory membrane on the walls (either a water resistive barrier behind the system [e.g. 15 lb felt] or a surface applied ANSI A118.10 compliant waterproofing membrane).
Methods B421, B422 require a mandatory continuous surface applied ANSI A118.10 compliant waterproofing membrane on the walls and shower floor.
Methods B420, B431 make provision for an optional surface applied waterproofing membrane on the walls complying with ANSI A118.10.
Method B426 does not require the use of a membrane on the walls since the board (cementitious-coated extruded foam backer board) is the substrate.
When seats, curbs, niches, etc… are utilized within these methods, waterproofing must be included and properly detailed.
COMMON SHOWER CONFIGURATIONS (Ceramic, Porcelain and Glass Tile) – pages 169 – 171
This is a new section. It includes details and information from previous TCNA handbook versions that were included in the “Tile Tubs, Fountains and Curbs” section. It now includes new details and information.
The new details depict:
How shower pan membranes should be placed at corners (both inside and outside), jambs and curbs (properly folded and brought to the correct height)
How backer board is placed and fastened over shower pan membranes (so that they are not punctured).
How shower seats (and other shower “bump-outs”) are waterproofed and integrate with the shower pan membrane
SHOWER RECEPTOR RENOVATION (Ceramic, Porcelain and Glass Tile) – page 172
Method TR418 depicts mortar bed walls / mortar bed floor. Wall method B414 includes the complete installation specification for the walls.
Method TR420 depicts backer board walls / mortar bed floor. Wall methods B415, B426, or B431 include the complete installation specifications for the walls.
posted by Henry @ Laticrete at 4:55 AM
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