A dormer is reshaping the roof to give greater internal height and space; there are many different styles of Dormer. In most cases dormers are located on the side or rear of the roof, although more picturesque dormers can face towards the front (subject to planning permission). Velux windows can be utilised to provide extra natural light. French windows can also be fitted in dormers providing vast amounts of natural light and ventilation. Flat roof dormers allow you to gain the maximum internal space in your loft conversion. Bonnet dormers are a more attractive option but this gives less internal space.