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Canada Tile Advice
Advice needed - poor tiling job, dot and dab not to BS5385
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[QUOTE="Tile Shop, post: 910694"] [B]BS5385 part 4:2015:[/B] [B]7.2.3 Installations not immersed but subject to occasional wetting.[/B] In installations where contact with water is only intermittent, and the installation has had the opportunity to dry out between periods of use, e.g. domestic (not power) showers, 7.2.1 and the following should apply: (have checked 7.2.1 and all it says relating to your query may be not to use plaster or gypsum based materials in wet areas as they are unstable when wet or when combined with cement based materials). a) The background should preferably be cement and sand rendering or dense concrete. Sheets and boards should not be used unless they are dimensionally stable in changing moisture conditions. [U]Tiles should be solidly bedded in water resistant adhesive.[/U] b) The joints between the tiles should be water-resistant but additional protection can be obtained by using an impervious grout. c) The gaps between wall and shower tray/bath should be sealed, particularly where the installation is located on a suspended floor. NOTE 1, for water sensitive backgrounds e.g. gypsum plaster, additional protection in the form of a waterproofing tanking system may be considered. NOTE 2, The use of impervious grouts and adhesives is no substitute for a tanked installation. More to follow when I get a bit more time.... 7.2.4 which is for wetrooms and domestic power showers. or you can have a browse yourself: [URL="https://www.tilersforums.com/threads/british-standards-no-longer-available-at-newcastle-library-but-heres-another-way.83947/"]British Standards no longer available at Newcastle Library.... But here's another way. - https://www.tilersforums.com/threads/british-standards-no-longer-available-at-newcastle-library-but-heres-another-way.83947/[/URL] [/QUOTE]
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Canada Tile Advice
Advice needed - poor tiling job, dot and dab not to BS5385
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