With the extra day off due to the Labor Day weekend, I had some extra time to Labor J Also, my order of studs and trusses was delivered this morning!
|Trusses being delivered.|
|Trusses and studs ready for building.|
As you recall, I was on the fence about insulating the floor. On the one hand, I was told it wasn’t necessary and personally didn’t want to spend more money on things I didn’t need. However, my biggest fear was that I’d have a sauna that’s not quite hot enough. While gathering more info on saunas from the web, I stumbled on this website:
I really liked the lighting he used. After emailing back and forth, he confirmed my fear of a cold floors, so I went ahead and opted to insulate.
I learned all I needed to know about insulating the floor from this great video:
One piece of advice is to make sure the rigid insulation you purchase is acceptable in an outdoor environment- not all of them will stand up to the elements. I went with Owens Corning FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10. I believe the 250 one is acceptable to be buried in the ground, but since we don’t need to do that—saved a few bucks.
There was 2 of us working, and surprisingly, it took a lot of time to finish—still not sure why. We worked from about 12p-8p and got it done. As we were running out of time, 1 thing we did differently from what the video recommended is instead of nailing wood blocks to hold the insulation in place, we nailed 2 galvanized nails in each place that needed the support. They were nailed 2” from the top of the joist—the thickness of the insulation. It seemed fast, easy, and I think will serve the same purpose just as well.
|Nails used to hold the rigid insulation in place.|
|View of floor rigid insulation in place from underneath.|
It was late when we finished placing and bracing the insulation, so we would attach the plywood the next day.