Products / Type LV Lumivent Automatic Smoke Vent

A double-leaf automatic roof smoke vent with translucent multi-wall polycarbonate covers framed in extruded aluminum, so that it also serves as a skylight; covers slope 4:12 and open when a UL listed fusible link melts or the latch is released. BILCO lists aluminum standard sizes from 48 in. x 48 in. to 66 in. x 144 in. The guide specification calls for a UL listed vent, covers reinforced for a 40 psf live load, and glazing with an R-factor of 2.38.