Up or down?
Which concrete board? I'll guess you meant to say which side faces out. It does matter with most, not the end of the world if you get it wrong with a few exceptions. So, which brand, thickness and what cha doing with it?
Jaz
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Tile 4 You LLC Troy, MI
KERDI Shower Specialist ... DITRA Installs ... Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong! - PRODUCTS ADVERTISED WITHIN MY POST ARE NOT ENDORSED BY ME!
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