Subfloor question for new deck and solarium
My wife and I are going to have our current second story deck torn down and replaced. We are planning on installing a solarium over part of the deck, and therefore the deck foundation will be built with this in mind. My question is concerning the subfloor for the solarium. I plan to put in ceramic tile in the solarium and it would seem an incredible waste of time and materials to install deck planking where the solarium will sit (11 ft x 22 ft), only to turn around and overlay the deck planking with plywood and cement board for the ceramic tile. Is there a way I can skip the deck planking for the portion of the deck covered by the solarium?