Why not use roth panels or quiktrak?
Roth plates and Quiktrak are pre-fabricated panels that are made with plywood, insulation and aluminum and either replace the subfloor or sit on the subfloor directly below wood flooring. These are excellent radiant solutions and easy to install. We prefer our sandwich, however, because it allows us to use more and better insulation and better aluminum plates to bring more heat closer to the finished floor surface.
