Hello,
I have been reading this wonderful forum for some time now. I finally managed to register and would like to start with a question.
Our roofer recommended installing additional cavity insulation. It should be 160 mm (6 inches) thick, and his suggestion is to use mineral wool combined with wood fiberboard panels for this extra insulation. He mentioned that the attic already has excellent thermal insulation. Our architect was also enthusiastic about this.
However, this will cost extra, and a rough estimate puts it at an additional 3,500 Swiss francs.
At the hardware store, an employee said that the mineral wool alone provides good insulation. Now I am a bit uncertain and would like to ask for your opinions here.
What experiences have you had, and is it worthwhile to use mineral wool as insulation?
Do the wood fiberboard panels offer any additional benefits?
These panels are supposed to maintain their functions for several decades.
Thank you in advance.
Best regards
I have been reading this wonderful forum for some time now. I finally managed to register and would like to start with a question.
Our roofer recommended installing additional cavity insulation. It should be 160 mm (6 inches) thick, and his suggestion is to use mineral wool combined with wood fiberboard panels for this extra insulation. He mentioned that the attic already has excellent thermal insulation. Our architect was also enthusiastic about this.
However, this will cost extra, and a rough estimate puts it at an additional 3,500 Swiss francs.
At the hardware store, an employee said that the mineral wool alone provides good insulation. Now I am a bit uncertain and would like to ask for your opinions here.
What experiences have you had, and is it worthwhile to use mineral wool as insulation?
Do the wood fiberboard panels offer any additional benefits?
These panels are supposed to maintain their functions for several decades.
Thank you in advance.
Best regards
S
sarahlein-119 Sep 2014 19:34Isn't that quite expensive as well?
K
Kurt1985-120 Sep 2014 16:29Of course, it costs money, and it’s really worth considering whether it makes sense. I’m not convinced. I don’t know if it provides much benefit.
H
Hannes1983-130 Sep 2014 17:21Hello,
First of all, thank you for the replies.
This is about an existing building, and I think 160 mm (6.3 inches) is quite substantial. Of course, the rafter cross-section must be suitable. I have now read that 120 or even 140 mm (4.7 or 5.5 inches) can also be sufficient without counter battens for insulation.
I am waiting for more useful answers.
Thank you very much
First of all, thank you for the replies.
This is about an existing building, and I think 160 mm (6.3 inches) is quite substantial. Of course, the rafter cross-section must be suitable. I have now read that 120 or even 140 mm (4.7 or 5.5 inches) can also be sufficient without counter battens for insulation.
I am waiting for more useful answers.
Thank you very much
I like these panels and have worked with several of them, but in this case, I think they just want to make a sale. Because often, mass doesn’t mean much. When the sun shines strongly in summer, the room heats up. In winter, we want to keep the cold out of the room. That’s why most insulation materials have a high thermal storage capacity. This is sufficient.
H
herrmann-15 Oct 2014 20:41Hello,
160 mm (6 inches) is already quite good for a renovation. You can push it a little, and adding a wood fiberboard with 35 or 60 mm (1.4 or 2.4 inches) is definitely very good. I agree about the heat protection; it’s a solid strategy from the seller.
Have a nice evening.
160 mm (6 inches) is already quite good for a renovation. You can push it a little, and adding a wood fiberboard with 35 or 60 mm (1.4 or 2.4 inches) is definitely very good. I agree about the heat protection; it’s a solid strategy from the seller.
Have a nice evening.