A Roof Dome is an polycarbonate roof light. Roof domes are ideal for domestic, commercial or local authority buildings. Sky lights which they are also known as are designed to allow maximum day light into an interior. It you install one that has generous ventilation it will have a long lasting performance. Using the aluminum option ventilation is provided along the full length of each of the roof lights four sides as standard, giving far greater ventilation areas than other usual slot vents. The ventilation mechanisms are high quality and long lasting draft free performance.