I'm sorry, but I don't understand the question you are asking.
Answer:
A method of construction used in Scandinavia during the middle ages.
Explanation:
Frescoes are in fact affected moisture. They need to stay dry, and humidity needs to be low.
Welding, carpentry, careers like that! Right now in the field for specifically welding, the opportunities are countless, and the job pays really well. Welding can be anything from creating metal art to fusing airplane parts to working on bridges - so from outdoors work to inside work. I don't know as much about carpentry, but it's similar enough, and if you build houses, that's outside I guess. Haha hope this helps!
i cant help without a picture or explaination of what ur talking about sorry m8 :)