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).
What is an Apostrophe? According to the Oxford English Dictionary, the word apostrophe comes from the Greek apostrophes, meaning âturning awayâ (to one in particular). An apostrophe symbolizes letters that have been âturned awayâ, or discarded, in order to make a word shorter or easier to pronounce.