When there's an entry between an exterior tiled deck and an interior living space, how should the threshold be detailed so that the doorway doesn't leak? My client uses a wheelchair and would like the interior and exterior floors to be in approximately the same plane.

A.Contributing editor Michael Byrne, moderator of the JLC online tile forum and an industry consultant in Los Olivos, Calif., responds: Unless there is frequent precipitation that makes it impractical, I usually build tiled decks so that the finished floor at the threshold is level with — or slightly below — the interior floor. Since this detail...

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