Glos DL BT is a roof system for natural daylighting. The wide-ranging roof mounting rooflight system is based on aluminum profiles and has a wide range of light-permeable packages. The elements of the system are designed to provide natural daylight, natural ventilation and smoke extraction. Continuous rooflights are installed on a distancing upstand in the roof pack. The system has a variety of additional components and can be installed on all types of roofs.
Glos DL BT  is  designed with Open architecture and through the INTEGRA technological system can integrate in any continuous lighting unit a variety of ventilation elements – NSHEVs, electric fan, air duct, sun protection elements etc.
Each product of the Glos DL BT system, apart from the standard core products, has undergone rigorouse tests to ensure the safety of the products, such as roofing elements, as well as sound and heat insulation tests, according to the requirements of the various energy efficiency and passive building standards.