The waterline belt of the "Queen Elizabeth" class consisted of Krupp cemented armour (KC) that was thick over the ships' vitals. The gun turrets were protected by of KC armour and were supported by barbettes thick. The ships had multiple armoured decks that ranged from in thickness. The main conning tower was protected by 13 inches of armour. After the Battle of Jutland, 1 inch of high-tensile steel was added to the main deck over the magazines and additional anti-flash equipment was added in the magazines.