Performance Gap. Background. In recent years, the housebuilding industry and government have grown increasingly concerned over the potential gap between design and as-built energy performance.
The apostrophe (â or ') is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet or certain other alphabets.In English, it serves three purposes: 1  The marking of the omission of one or more letters (as in the contraction of do not to don't).he apostrophe (â or ') is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet or certain other alphabets. In English, it serves three purposes: 1  The marking of the omission of one or more letters (as in the contraction of do not to don't).
Nouns include people, places, things and ideas. When you use an apostrophe with a noun, you illustrate the possessive form of the noun, which means you want to show ownership of the object or idea, an imperative element of the English language.Placing apostrophes correctly eliminates confusion and leads to well-written work.nsert an apostrophe and an s after compound nouns: her father in law's estate. Place an apostrophe and an s after the final noun in a sentence or phrase that indicates two people or things share possession of an object: Nick and Audrey's apartment bills.