R Values for Insulation in our Sauna Wall Prefab Panels
We use R-11 insulation in our sauna prefab wall panels that are framed with cedar 2x3s
The tongue and groove cedar on the inside, the bevel cedar on the outside and the reflective sauna foil vapor barrier add up to a total R value of approximately 17-20 overall. It’s also aided by the sauna foil vapor barrier.