CharlieHarper
2017-10-05 22:17:54
- #1
Hi!
Does anyone have experience with moisture-variable vapor barrier films that are installed consecutively?
Idea:
In our attic, there is already insulation with aluminum coating installed on the inside! I want to leave it as it is. The aluminum coating is reduced in its SD value from 1500 using a spiked roller, so that the SD value drops to 5. Does anyone also have data on what minimum "resolution" must then exist to achieve this? A moisture-variable film is to be fixed onto this so that no material from the external insulation can be blown inside by wind and/or vibrations caused by other factors. The material that was used previously is now considered carcinogenic, another reason to practically seal it inward. The insulation values, on the other hand, are not so bad. I think I read 0.35. On top of this, another insulation layer will be laid with a final moisture-variable film. Long story short, I would like to upload everything else as a PDF, unfortunately this is not possible; according to the PDF file on the U-value page, it should work. Any critical remarks on this?
Does anyone have experience with moisture-variable vapor barrier films that are installed consecutively?
Idea:
In our attic, there is already insulation with aluminum coating installed on the inside! I want to leave it as it is. The aluminum coating is reduced in its SD value from 1500 using a spiked roller, so that the SD value drops to 5. Does anyone also have data on what minimum "resolution" must then exist to achieve this? A moisture-variable film is to be fixed onto this so that no material from the external insulation can be blown inside by wind and/or vibrations caused by other factors. The material that was used previously is now considered carcinogenic, another reason to practically seal it inward. The insulation values, on the other hand, are not so bad. I think I read 0.35. On top of this, another insulation layer will be laid with a final moisture-variable film. Long story short, I would like to upload everything else as a PDF, unfortunately this is not possible; according to the PDF file on the U-value page, it should work. Any critical remarks on this?