Now I have a question that might be the dumbest you've ever heard, but never mind - I'll ask it anyway!
I'm in the process of changing the floor and therefore everything is exposed down to the slab, and in connection with this, I have examined the status of the sill. It looks fine and I don't notice any odor, but it's at the threshold value of 15% in moisture, so I can't help but think about various precautions.
We are going to install a ventilated floor (JAPE) so the slab will dry out in a different way than today, and we are going to drain around the house, so the conditions will improve - but is that enough?
This has led to a flurry of activity in the brain department, and today it struck me that you might be able to install some kind of heating element along the sill?! Something that slightly raises the temperature and ensures the top of the moisture in the sill dries out.
So, what do you think about this? Is it realistic? Is there such a thing as a "sill heating element" to buy? Or was it among the dumbest things you've heard???
I'm in the process of changing the floor and therefore everything is exposed down to the slab, and in connection with this, I have examined the status of the sill. It looks fine and I don't notice any odor, but it's at the threshold value of 15% in moisture, so I can't help but think about various precautions.
We are going to install a ventilated floor (JAPE) so the slab will dry out in a different way than today, and we are going to drain around the house, so the conditions will improve - but is that enough?
This has led to a flurry of activity in the brain department, and today it struck me that you might be able to install some kind of heating element along the sill?! Something that slightly raises the temperature and ensures the top of the moisture in the sill dries out.
So, what do you think about this? Is it realistic? Is there such a thing as a "sill heating element" to buy? Or was it among the dumbest things you've heard???
15% is a completely acceptable value and there is no risk of growth at those levels. It is only after ~17% that one can say that the values are somewhat elevated and should be examined more closely. I assume the house has been standing for a number of years considering you are replacing the floor; if there were a risk construction at the sill, the values would be higher. I would be completely calm and not investigate further about syllslingor 
Thanks for that response! Yes, the house is from 1895 and the current construction is from 1978. Since I wrote the post, I have exposed as much of the sill as I could, and just as you said, it turned out to be completely okay! Now the ventilated floor is almost finished, so everything feels brighter and it's much easier to sleep at night - and with your insights, it feels even betterOasis said:15% is a completely okay value and there is no risk of growth at those levels. It's only after ~17% that the values can be considered somewhat elevated and should be investigated further. I assume the house has been standing for several years given that you are replacing the floor; if it was a risk construction at the sill, the values should be higher. I would be completely calm and not investigate sill loops further