Not sure if it’s just my head. Ready to do the Durock while it’s the right temp out before it gets too cold and I have to run the furnace without attic insulation. I have a couple questions that I can’t seem to get the answers to:

I have a standard, unmodified Mapei Mortar for laying the durock with. The directions on the bag state not to tape the seams with this product. Not sure why and now what do I use to set the seams with or what kind of mortar will work?

And should I tape and mud the seams now or wait til I’m ready to put my tile in a few weeks down the road?

thanks so much.

G