Dried out the factory flooring and removed original sheet vinyl. Went over existing sub floor (which was essentially ultra-thin Luan maybe that's where the term Ulra Lite comes from) with 3/8" plywood, and then peel and stick tile. The original sheet vinyl was tucked and secured slightly underneath the adjoining carpeting. However, due to the extra height, I could only butt the plywood and tile up to the carpeting as closely as possible (they're virtually identical height), so I need some ideas on how to join the two together without adding very little height to the total install, or making it tacky with something like a metal strip. There's also a rounded edge to it. It almost seems like some sort of seam sealer like a caulk that would completely harden would work, but I'm unsure if any such thing exists. Any ideas welcomed! Thanks, Robbie