Casement window is the most popular and versatile model on the market these days and it remains the nation’s most popular style for over 35 years. This window looks like a picture window because unlike double hung or sliding window, a casement window has no rail. They open easily and come in any sizes so it’s a great choice for spaces where your window requires a reach. Casement windows offer full top to bottom ventilation, they are opening outward either to left or right which allows fresh air inside. Casement window designs tightly close, providing a weatherproof seal against drafts and moisture. Their unique looking systems, which aren’t easily accessible from outdoors, strengthen a home security.