There are many practical and convenient features to the exterior window casement. One is that it can protect you from unpleasant weather cleaving to the accessories. Out in rain, wind and snow, water is kept off through it can't go up inside for a draft causing chill at home. This first advantage alone is enough reason why so many people prefer casement windows. Secondly, the structure of the casement naturally deters burglary and restores peace to one's mind. Third is that this type of window readily lends itself to energy conservation. Reducing heat transmission minimizes power wasted which could not be more reflective in bills you pay or how far the footprint of your life (our own contribution to global warming) extends. What's more, such a simple to use facility and so low in maintenance needs is obviously the best all-round economy for schools as well as homes.