You want to make that space in your attic useful but being as it is too cold and damp, you wonder how to do that. What you need is a roof window. Apart from providing the room with enough sunlight to keep it warm and bright, it will also provide adequate ventilation for this space. It will also light up the room naturally and give you opportunity to watch the sky from inside your home. Unlike a skylight, the roof window will be within your reach, making for easy cleaning and manual operation. It will save you of energy costs both for lighting and heating, especially if the glass is glazed for proper insulation; this means you also contribute to environmental conservation by reducing the carbon emission from your home. Apart from its aesthetic value, this type of window is also associated with health benefits, for example, reducing your chances of suffering from Seasonal Affective Disorder (SAD) and generally lifting your spirits. If it is not correctly fixed though, it may become a nuisance during storms allowing rainwater to leak. That is why you need expert skylight installers to handle this delicate task and you will reap the most benefits from your roof window.