Roof ventilation fan plays a crucial role in Australia because of its famous hot sun. the sun in Australia and similar regions is known best for the amazing solar power that it emits on our buildings.
Where it is important as solar energy, the fact that it doesn’t discriminate when it comes to giving hot solar energy on our sunroofs. This makes the ceiling hot and summers a difficult period. With constant heat provision throughout the summers, it becomes difficult to manage under the ceiling.
The cavity of roofs heats up and it seems like blasting the whole apartment. The heat energy traps in the ceiling cavity and it ultimately heats the entire building. On the contrary are the winters days, when the same ceiling cavity eventually traps the cold breeze and thereby freezes the entire building to the temperature you would not like.
The basic goal of using the roof ventilation fan, as we have discussed in the introduction is to refresh the amount of air in the roof cavity. This is the air that makes the cavity a burning furnace. This eventually allows the cool air outside the cavity to enter it and hence to let go of hot air. This is the most common practice we observe on summer hot days. Alongside it, the system also pulls the hot air inside the cavity to the outside environment.
Similarly, the mechanism and the purpose turn upside in winter. In winters the system works conversely to what it is in summers. Here, we let the warm air outside the roof cavity to comes in and eventually pull off the cool air inside the cavity. In this way, the transfer of hot and cool air helps us in keeping the temperature of the roof cavity to an optimal level.
To let the fresh air whether cool or hot enter inside a cavity, all we need is to install vents. The vents are placed in a position where the sunlight and heat cannot reach them.
Furthermore, there are other ways to let the fresh air come inside the roof cavity. It is done so by using the ceiling grills installed inside the property. However, the grill option in the property appears to be an optional setup. To let the bad air, go outside, we use fans which are usually run by a turbine system that uses the wing of a supposedly silver whirlybird. The birds or fans are run either by electric power or are powered by natural wind power. By wind power, the fans run continuously.
There is another type of vent which is famous as box vents. This system uses unpowered boxes with having air grille. The ridged vents are used alongside the horizontal edges of the rood cavity. However, the boxed and ridged vents both are used to let go of the bad air using the natural convection method instead of artificial ways.
The primary benefit that we observe using the roof ventilation fan is to refresh and regulate the temperature of your roof cavity. The purpose thereby is not to allow the hot or cold air to affect and disturb the temperature of the rest of your property. This can be realized by the fact if you don’t have a ventilation system in your house. In this way, u can realize that your air conditioning system has to work much harder to maintain the optimum temperature. The drawback of using the extra cooling system is that it uses a lot of electric energy which can be expensive for you. By using the ventilation system, you eventually can maintain the temperature of your home in a much efficient manner. The outcome of this allows you to have a healthy bank balance.
The other benefit of using the ventilation system is to prevent moist and humid air from accumulating into your roof cavity. By not doing this the roof cavity becomes a junction of humidity. The presence of humidity allows the water to drip from the rooftop. The problems get multiplicated when there is rain on your rooftop. In this way, the word and other materials start absorbing the water and thereby threatening the structural integrity of the house. In addition to structural integrity, the rood also starts smelling the swatches of bed odor which feel pungent. Moreover, the humidity is the breeding ground for termites. They love the damp condition as living season. The presence of termites eventually becomes an issue for your property.
Hence, the presence of roof ventilation allows your property to becomes free from humidity and those wooden suckers, ultimately protecting it from the destruction of humidity.
There is no doubt about whether the roof ventilation fan works or not. However, one needs to keep in mind the consider buying the roof ventilators. This includes:
People who are living in the outskirts where the temperature reaches the zenith, know the importance of roof ventilation that helps them in keeping their homes cool. For this hence the placement of fans must be at the highest position in the roof cavity. This makes it easier for the vents to let off warm air.
The final size of the inlet and outlet both depends much upon the size of your rood cavity. A roof having a large cavity requires a large vent size and a small one needs a small inlet or outlet. The large vents are capable to carry out large air volumetric flow. The recommended airflow must be ten air changes per hour in your roof cavity.
The vents for outlet flow of air are more effective when they are powered by electric energy. You also can power them using solar panels if you think they are much expensive using electricity. It is because some solar-powered vents we observed to be more potential and powerful than those running on electric current as whirlybirds etc.
From the above observation, we can safely claim the roof ventilation systems play an integral role in cooling our homes and roof cavities. They are the effective sources to regulate stale air and fresh air. It ultimately ensures the safety and integrity of the property.
