I've got a conservatory wall based on a durabase steel system. Looks like the one in the following picture:
http://goldseal.org.uk/images/Durabase/Goldseal duramabase 1 (7).jpg
I plan to fill the cavity with the following insulation:
https://www.diy.com/departments/kna...n-l-1200mm-w-455mm-t-100mm-of-8/330687_BQ.prd
Question is, before put plasterboard directly onto the metal plates, should I get a foil backed insulation with the foil staying inside the wall and then apply the plasterboard? Reason I ask, is because the metal can get very cold and the moisture if it directly touches the plasterboard i'm guessing can cause issues to the plasterboard. On the floor I was told not to use the foil back underlays as this will trap moisture on the tongue and groove boards but instead use regular underlay so the floor can breathe. But for the walls what shall i do?
http://goldseal.org.uk/images/Durabase/Goldseal duramabase 1 (7).jpg
I plan to fill the cavity with the following insulation:
https://www.diy.com/departments/kna...n-l-1200mm-w-455mm-t-100mm-of-8/330687_BQ.prd
Question is, before put plasterboard directly onto the metal plates, should I get a foil backed insulation with the foil staying inside the wall and then apply the plasterboard? Reason I ask, is because the metal can get very cold and the moisture if it directly touches the plasterboard i'm guessing can cause issues to the plasterboard. On the floor I was told not to use the foil back underlays as this will trap moisture on the tongue and groove boards but instead use regular underlay so the floor can breathe. But for the walls what shall i do?
