ᐅ Poroton T9 unfilled or Poroton T8 with mineral wool insulation?

Created on: 23 Feb 2015 16:02
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fridolinmeier
Hello, my project will start this summer and I need to choose a masonry block now. The options are Poroton T9 unfilled and T8 filled with mineral wool (additional cost 2500 €). My question is (I have done some research already): Are the unfilled blocks really much more prone to cracking than the filled ones? I have looked at them, and the webs are definitely much thicker. The mineral wool is packed very tightly, so I hope it will only shrink a little over the years.
Thank you for your help.

Best regards

Fridel
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annab377
11 Feb 2020 11:30
I also find it interesting with saw-cut stones, especially those filled with perlite. When you saw through a chamber, all the perlite in that chamber falls out, leaving the stone without insulation in that area, right?!
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Snowy36
11 Feb 2020 16:32
nordbayer schrieb:

How close to the street do you live for it to be noticeable to you?
I live about 300m (980 feet) away from a lightly trafficked local main road. But that's not the problem...

My own heat pump (outdoor unit), a new development area full of children, air traffic at 4000m (13,100 feet) altitude, and so on... there are countless sources of noise in rural areas other than cars.
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Bookstar
11 Feb 2020 17:28
You are quite sensitive to noises!
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Snowy36
11 Feb 2020 17:43
How do you know that?
The filled block has a higher decibel rating, which is why
I would choose it...

By the way, the breaking didn’t cause any issues, and hanging things has been easy so far...
However, I don’t have any kitchen cabinets on the exterior wall...