Casement windows made of aluminium are windows that are hinged to aluminium frames. A fixed, glazed frame and a second, hinged frame  or & basement, are both parts of aluminium casement windows. Top Hung casement windows, with hinges at the top, are perfect for rainy weather since they keep the rain out. Large casement windows with a metal grill are ideal for houses with little children or animalsc since they can open widely and are great for ventilation rooms.