Ceiling air inlet

At PH Insulation you can order fresh air doors with a filler made of energy-efficient polyurethane foam with a thermal conductivity of 0.022 W/m*K and a density of up to 45 kg/m3. The doors are designed to perform an automatic ventilation cycle and maintain humidity in fruit and vegetable storages. The doors are installed on the end walls of vegetable stores and have a system of automatic opening which is operated manually or automatically.