Hello again knowledgeable people!
I've made some progress on the construction, so here are the next questions and thoughts. After reading and reading about different foundations, the extension now has a ventilated crawl space. The crawl space is about 60 cm high. I'm wondering if the risk of condensation on the underside is reduced if some of the heat leaks downwards. In other words, I'm thinking of some type of cement board for the floor structure, 20 cm wood fiber insulation, and wooden flooring on top. Is that completely crazy?
Grateful for all ideas, opinions, and answers!
 
M MaggisP said:
ventilated crawl space
How do you plan to ventilate the foundation?
 
H Håbbe01 said:
How do you plan to ventilate the foundation?
At the moment, there is an inspection hole on one side so you can get underneath, later I was thinking of square vents with a mesh. Can it be called natural ventilation?
 
Moisture can become a problem, so minimize the use of organic materials; fiber cement boards in the foundation pit are preferable, available for example at byggmax.

Plastic covering the bottom also keeps down the moisture from the ground. Openings in the foundation wall, especially at the corners and the middle, are good to make.
 
H Håbbe01 said:
Moisture can become a problem, so limit organic materials; fiber cement boards in the foundation are preferable, for example, available at byggmax.

Plastic covering the bottom also reduces moisture from the ground. Making holes in the foundation wall, especially at its corners and middle, is good to do.
Thanks for the info!
 
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