You may have heard of the word “soffit”. It’s a word that has actually come a long way in history, originating from two similar words, which are the Italian “soffitto” and the French “soffite”. Both words share the same meaning of “to fasten something below”. Nowadays, soffit is more of a term used in home improvement, especially if it involves roof replacement or repair. A roof soffit is more than just pieces of board lined under your roof.