On May 24, 9:48*pm, RicodJour wrote:

BTW, blue board is for plaster, green board is moisture resistant and
should _not_ be used in a shower.


They told me that this stuff - actually kind of a purple color -
replaced green board and is what you would use in a shower stall.

It's made by Gridmarx, says manuf'd to ASTM Standard C1396 and CSA
Standard A82.27

If not this, then what should be used in a shower stall?