Sentences with phrase «mm gap +»

Party wall: Plasterboard skim externally followed inside by 25 mm service void if needed, 12 mm Spanotec Durelis board (airtight / vapour block), 18 mm Fermacell board, 97x47mm studs + 60 mm gap + 97x47mm studs (all fully filled with mineral wool insulation to 254 mm), 18 mm Fermacell board, 12 mm Spanotec Durelis board (airtight / vapour block), 25 mm service void if needed, plasterboard and skim.1 hour fire rating.