An amazing effort was made last year to build a sauna, based primarily on recycled timber. This year we wanted to make some improvements.
The roof needed the most work, so we reinforced it, and added interior and exterior panels to create an insulated cavity roof.
then filled with rockwool insultation
Next step is to add breathable membrane, and feather-boarding to finish the roof. Then we will be on to sanding and treating the rest of the sauna and door construction.