Lumivent is a domed automatic fire vent that provides natural daylight, energy efficiency, and the protection of automatic fire venting. Using translucent Lexan Thermoclear glazing, light transmittance is maximized while solar-heat gain is minimized. Vent design provides a sleek look. Lumivent opens automatically in the event of a fire, allowing smoke, heat, and gases to escape and assisting rescue personnel in their containment efforts. Thermolatch II latching mechanism provides vent operation and prevents inadvertent opening of the covers caused by wind or building vibrations.