roofing Syllabification: (roof·ing)Pronunciation: /ˈro͞ofiNG, ˈro͝of-/Translate roofing | into German | into Spanish Definition of roofing noun material for constructing a building’s roof:a house with corrugated tin roofing the process of constructing a roof or roofs:jobs such as roofingroofing in other Oxford dictionaries Definition of roofing in the British & World English dictionary