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Unpowered Roof Ventilator


On the roofs of some of our current factories, we have installed roof ventilation fans to be used. Unpowered roof ventilation fans, that is, our natural roof ventilation fans, are the type of ventilation fans that many consumers can consider purchasing first. Today we will introduce you to some of its working principles and advantages. Next, let's learn about the principle of roof ventilator!

The natural roof ventilator is a ventilation device installed on both sides of the roof ridge of the top of the industrial factory, which can promote the heat exchange inside and outside the industrial factory, effectively discharge the hot air in the factory, and introduce the outdoor cold air to charge to form air convection and reduce the temperature in the factory. If ventilation occurs, fresh air will enter through the vents and flow to the exhaust vents in the roof, and the cooler fresh air will absorb the air in the room as it passes through the house.

Many industrial factories of ventilators, especially color steel plate buildings, have poor cooling conditions, hot summers, reduced work efficiency, and reduced product quality. Adding unpowered roof fans can effectively improve indoor air quality, provide a working environment and improve work efficiency. Due to the special nature of production in many industries, the air pollution in the factory is not only low in environmental quality, but also the health of employees will be endangered. However, by installing a non-powered roof fan, the indoor ventilation effect is improved, which can effectively protect the health of employees.

In many fire accidents, like installing an unpowered roof blower, thick smoke is often choked, and the smoke will be quickly discharged in large quantities, giving people more escape space, so it is also a safety device.

The ventilator marks the distance along the complete peaks of the two colored steel plates on both sides of the waterproof base plate, lays square wood under the base plate, and hits the base plate with a rubber hammer or a mallet to make the cross-section waveforms of the base plate and the steel plate match each other. The ideal location of the ventilator should be as close as possible to the ridge line, positioning the flashing board on the roof with the sloping edge end of the base plate embedded about 10 cm into the gap under the metal cover of the ridge. Draw the outline of the opening with the inner hole of the waterproof substrate as a model, and then finish the opening with a roof cutter. Trim the edges. Cut the insulation surface into rice shape with a sharp blade. After removing part of the insulation surface, insert the insulation surface and aluminum foil between the steel plate and the insulation surface.

The overall design is streamlined and arc-shaped, which effectively ensures the strength of the ventilator body and reduces the wind pressure on the ventilator body. The large volume formed by the height of the ventilator body and the arc can effectively improve the collection and discharge capacity of indoor air. Set up a pressurized water tank (also a water outlet), turn the entire roof into a wind collection platform, collect the roof wind, form a bottom-up wind pressure thrust on the ventilator, and discharge the air from the collector window upwards. In any direction, the wind over the top of the ventilator increases the ventilator's ascent rate through the attractive force created by the exhaust port.

The above are some of the working principles of the unpowered roof ventilator introduced to you. If you want to know more, please feel free to contact us!

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