When wanting to invest in new windows, the vast majority of homeowners will opt for double glazing and it is fair to say that it is arguably one of the best things you can do. However, double glazing is available in a number of different frame styles and deciding which to choose isn’t always easy. Generally speaking, most homes in the UK these days have lipped casement windows and they have been a popular choice for many years now. Casement windows are attached to their frame by hinges and they can be side or top hung. These windows always open outwards and they can be held open by a casement stay. Usually, they are in pairs within a common frame, but they can also be single windows too. Nowadays, when considering installing casement windows, the alternative of flush casement windows will also be brought to homeowners attention and more of than not, this will be the style they end up opting for. If you’ve never heard of double glazed flush casement windows before and you’re wondering why they’re commonly chosen over the lipped style of window, keep reading today.