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2

lol lol Walls don't breathe and you already have them completly covered, with drywall mud and paint. I don't think your friend is quite qualified to tell you anything when he has no idea what he's talking about. Tile all the walls all the way up if you want to.


1

You don't have to. It is completely up to you. Sealing the grout is doing absolutely nothing as far as water-proofing your current setup. I Redgard/HB many showers/tubs and here is what I do: unsanded - gets sealant. In my opinion it stains easily, especially below level where water constantly hits. sanded - don't seal it. It looks better unsealed and ...


0

I always seal the grout, whether or not I'm after one of Custom Building Products' warranties: A complete CUSTOM Shower Installation System of products must be used including Shower Slope, Shower Base, ANSI A118.4 Bedding Mortar, Sealant, and suitable CUSTOM RedGard Waterproofing and Crack Prevention Membrane to qualify for this limited warranty. –CBP ...



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