We have a 20ft x 10' second floor patio outside the master bedroom. Structurally, it is sound. The tile matches bedroom and rest of house- looks very nice.
However, we want to put a good outdoor carpet on the patio. While yes, the tile is same as in the house, based on past experience, a carpet traps that chalky dust that collects on a tile patio so you don't track it into the house.
Plus the carpet deadens sounds, etc. We don't want to destroy the tile for resale and I know that glue/nailers will destroy the tile.
So.... would placing exterior grade plywood subfloor and/or backboard over the tile and screwing that into just a few spots around the perimeter work to minimize tile damage?
The patio gets lots of sun and we get very, very little rain on it due to a significant roof overhang all the way around.
Or, perhaps put a plastic barrier between tile and backerboard would work as well. Then, glue down the carpet as normal?