The Smart Vent Insulated Flood Vents are for garages and / or conditioned spaces where you need flood protection but do NOT need air ventilation.
The vent doors in the insulated flood vents remain closed until they come in contact with flood water. Upon contact with water the latches that keep the door closed will unlatch and the door will open allowing pressure to be relieved from your foundation walls.
These flood vents have an R-value of 8.34 and come with weather stripping that maximizes insulation.
Please note that these Smart Vent Insulated Flood Vents are certified to only provide flood protection.