Big-Box Retail
Natural smoke exhausting
Depo
http://www.riga.in/2010/09/depo.html
The primary function of mcr PROLIGHT continuous rooflights is to provide natural light to interior spaces. Continuous rooflights equipped with smoke ehaust vents and/or ventilation units from the mcr PROLIGHT line additionally serve as a crucial component of the gravity smoke extraction and/or daytime ventilation system.