In addition to optimum heat protection and complete blackout, Velux shutters offer thermal insulation. They are made to fit roof windows exactly and can easily be installed from inside. Thanks to their elegant design, which fits flush with the window, they can be integrated harmoniously in any roof. The polyurethane-foam filled aluminium slats not only act as insulation, but also block out sound. The different shutter options allow for opening and shutting with solar power, mains electricity or by manual winding.