Foam insulation in the ceiling

[maskeradeproggaren]

So spray the roof with polyurethane foam against the roof decking instead of traditional mineral wool. The advantage is that it builds about half with the same insulating value, which in our case is very valuable.

This is supposed to be "great" according to those I've spoken with who sell it. The only downside is the price, about double. But how is it in practice, for instance concerning moisture? Could there be mold problems? Other issues?

 

[Stuff]

So spray the roof with polyurethane foam against the sheathing instead of traditional mineral wool. The advantage is that it builds about half with the same insulation value which in our case is very much worth it.

This should be "great" according to those I have talked to who sell it. The only downside is the price, about double. But how is it in practice, for example for moisture? Can there be mold problems? Other issues?

Check the properties in case of a fire too. You don't want to build in material that accelerates the fire and/or releases toxic gases.

 

[Patzie]

Then if you actually have problems/need to renovate. It's a bloody hell to tear down if everything is foamed.