dwarf wall

So I have started my workshop build today... Finally! I am knocking down my current garage to make way for a double story side extension on my house so need the workshop to house all my tools and junk. (See...

We’ve been working to insulate the eaves / void area of my semi detached 1970s dormer. The area won’t be used for storage so I’m insulating the dwarf/stud wall and 1st floor/ground floor ceiling (rather than the rafters). The wall is foil faced plasterboard on 75mm studs. I understand that the...