The Velux VLT 025 skylight is a side-hung access window designed to provide ventilation and light for uninhabited and unheated loft spaces. It enables easy access to the roof and provides good lighting. The Velux Velta skylight is produced with a 15 mm double-glazed pane to improve insulation. It comes with integrated flashing, eliminating the need for a separate installation product, and fits perfectly on tiles and slates. The construction can be fixed and mounted very easily in the roof area. Velux Velta skylights are made for maximum flexibility, allowing installation as side-hung left or right. All chassis are suitable for tile and slate roofing with roof pitches between 20 and 60 degrees and roof material up to 90 mm in height. Weight: 22.0462262 pounds. Manufacturer: Velux.