awning vs roofing

awning

noun
  • A rooflike cover, usually of canvas, extended over or before any place as a shelter from the sun, rain, or wind. 

  • That part of the poop deck which is continued forward beyond the bulkhead of the cabin. 

roofing

noun
  • Material used on the outside of a roof, such as shingles. 

  • The process of constructing a roof or roofs. 

  • A way of travel which consists in clambering over the roofs of skyscrapers. 

How often have the words awning and roofing occurred in a corpus of books? (source: Google Ngram Viewer )