Build your own sauna with a sloping roof - suggestions/notes/plans

The woman was quick, it must have been a pretty dirty job. Due to the lack of suitable tools for cutting the wood fiber insulation boards, it looks a bit rustic, but the end justifies the means. ;)
I also installed the ventilation, good thing I tested the fan, otherwise I would have installed it the wrong way around. :)
The vapor barrier is coming tomorrow, from Monday on the cladding will start.
I have to work again the week after next, by then I want to be finished, provided the circular saw arrives on time.

Now that I am looking at

img_20210102_155829-jpg.55506

I realize that we have almost the same door handles :)

Continued success! I'm already a bit jealous ... ;)

you are approaching the end,
we are going with you to our sauna today,
but soon .... it will be your turn too

Hello Great job and nice that you document this here so thoroughly. I have already "bookmarked" the thread so I know what to watch out for once I start mine...

What kind of insulation is that? "Normal" insulation made of mineral wool is usually cut with an insulation knife (or just a bread knife :cool: ), the thinner ones up to 8cm also work well with a cutter with a long and fresh blade. To me, it looks more like foam in the pictures? Does the insulation not have to be especially heat-resistant?

This is wood fiber insulation. In private construction, it is often built completely diffusion-open, meaning without a vapor barrier. However, I did not dare to do that.

I have a question: I attach the vapor barrier with a stapler. Do I then have to cover the staples with the aluminum tape, or can I skip that?