Ready-to-use tile adhesives such as MAPEI's Type 1 and Premium Mortar for tile and stone require a porous substrate to cure properly. They should not be installed over a waterproofing membrane.
MAPEI's Keracolor S Sanded Grout, Keracolor U Unsanded Grout, MAPEI Flexcolor CQ, Kerapoxy CQ, Ultracolor Plus FA and Ultracolor Plus Max grouts are all recommended for use outside in uncovered, exterior areas.