Roto Skylights are ideal where you wish to make the best use of the light and space available, with windows that do not need to open. Two adjustable air vents located in the top part of the frame provide passive ventilation. As you would expect, Roto Skylights have been designed and constructed to the same high standard as our Roof Windows and offer the same quality in construction and range of features. A condensation channel located at the bottom of the skylight captures any running condensation.