You can avoid the cost and mess of tearing it out by just screwing down wood got some great outdoor flooring ideas over concrete starting with building a deck! of your decking and whether or not you put spacers under the sleepers).
DIYNetwork.com experts show how to install a subfloor in preparation for tile flooring. Lay the plywood in place on the floor. Insert the Deck Screws adhere to. Follow these step-by-step instructions to prepare a wood subfloor for tilework.
Fasteners: Recommend 2” #10 exterior wood deck screws either stainless Drains: Place drain(s) at points of maximum deflection not over columns beams etc. Two Layer Subfloor Installation: Base layer to be installed as per single layer
New porch floor - to subfloor or not to - Fine Homebuilding
8 Sep 2006 Lay a plywood subfloor first and undercut the bottom clapboards and the door No place to hang a girder midspan but plenty of room for a few extra joists Those deck boards will get wetted and they need to dry both ways. of cellular PVC solid wood poly-ash boards or any common molding material.