During World War II, Roe mainly continued to build passenger bodies, although supplying the war effort more directly with such specialised bodywork as mobile printing presses for field communications use on Foden lorries and articulated mobile kitchens, canteens and dormitories to assist blitzed factories. These were on semi-trailer chassis coupled to Bedford tractor units. Similar bus-seated vehicles were built mainly for use within Ordnance factories (where they became known as Bevin buses) but two were supplied to Liverpool Corporation and briefly used as service buses (1942–44) before being converted to mobile canteens. More normal passenger vehicle bodies were built during the war to the Government-mandated 'utility' outline including 240 single-deck 32 seaters on Bedford OWB chassis and over 400 double-deck bodies on Guy and Daimler motorbuses and Sunbeam trolleybuses, most to the sunken upper deck offside gangway or lowbridge layout.