Insulation fiberglass or PUR?

[Anonymiserad 382559]

I am going to build a house.
I have the choice between fiberglass insulation or rigid PUR foam boards.

PUR is said to insulate better. Fiberglass is sensitive if water gets into it.

Which one should I choose?

 

[useless]

Hard drives are more difficult to make completely sealed.

 

[witten]

By fiberglass do you mean glass wool? Definitely the wool.

 

[Anonymiserad 382559]

By fiberglass do you mean glass wool? Definitely the wool.

What is the reason?
I mean fiberglass insulation, like Gullfiber.

 

[vectrex]

What is the reason? I mean fiberglass insulation, for example, Gullfiber.

The main reason is probably the price. If price is not an issue, I would still recommend a combination of PUR and fiberglass.

PUR is nice if you can apply a complete layer of it, i.e., not when it has to go between studs in a stud frame. Applying a complete layer of PUR is an option for breaking thermal bridges and achieving really good insulation value without building walls that are too thick. But in new construction, I don't really see the reason, actually.

 

[Anonymiserad 382559]

The main reason is probably the price. If the price is not an issue, I still think a combination of PUR and fiberglass is the best.

PUR is nice if you can apply a complete layer, i.e., not when it needs to go between studs in a frame. Applying a complete layer of PUR is an option to break thermal bridges and achieve a really good insulation value without building too thick walls. But in a new build, I don't actually see the reason.

It ended up being PUR insulates better. The house is almost finished now