The Profile opening roof window allows both light entry and high level ventilation. A deep cowl around the outside of the sash means that it can be left partially open for fresh air while still keeping the rain out.
It is suitable for conservatories, kitchens, bathrooms, passage ways etc.
Fixed overhead glass windows are also available and can be built in a wide variety of designs, from small skylights to large glazed expanses. They’re ideal in porches and rooms that would otherwise be dimly lit. Profile roof windows are suitable for most roof pitches with a minimum of 15º required for single glazing.
Overhead glazing can be built in large expanses, provided First glazing bars (rafters) are used at appropriate intervals.