A balanced attic ventilation system that consists of intake at the eaves, soffits, or fascias of the roof, and exhaust at or near your roof ridge, serves two important functions. First, it allows cool, fresh air to enter into the attic. Second, it allows hot, moist air to escape.
A balanced attic ventilation system must have air intake on the roof, soffits, and exhaust steam near the roof ridge, a balanced attic ventilation has two important functions. First, they put cold, fresh air into the attic. Second, they let out hot and humid air.
Improper ventilation contributes to the increase of hot and humid air in the attic and can increase the temperature in your environment. Excessive hot and humid air can damage nerves, wooden frames, ceilings, walls, paint, and wallpaper. Another effect of improper ventilation is that they can increase the consumption of air conditioners.
In winter, toiletries and cooking equipment will contribute to increase the amount of water vapor and moisture in the attic. When the attic does not have a proper ventilation system, water vapor collects under the roof. Excessive humidity can damage the structure of the house, such as decay and can even attract wood-eating insects such as termites.
How to Improve the Quality of Your Attic Ventilation
The Federal Housing Administration in the United States recommends at least 1 square meter of attic ventilation (evenly distributed for air intake and air expenditure) for a roof area of 300 square meters. This 1/300 rule is too general and cannot be applied to all buildings.
If you are not sure that your attic has proper ventilation, or if you have incurred large costs for electricity beforehand, it is time to contact a trusted contractor in your area to inspect your attic and roof.
Source retrieved from: https://modernize.com/home-ideas/25937/the-importance-of-attic-ventilation-2