3 Reasons Why Roof Ventilation is Important for Your Home. Well, we hope you might be aware of the basics of ventilation. However, still, let’s have a look at it. Ventilation is the flow of air through a system of intake and exhaust so that your home or property stays humid-free. The process of ventilation is important as it increases the life of the roof and also reduces energy costs and prevents the increase in indoor temperature extremes.
It was in the mid of 20th century when an organization named as American Society of Heating, Refrigerating & Air-Conditioning Engineers and Forest Products Laboratory came to realize that the poor roof ventilation might be the cause of condensation problems. Let’s have a deeper look at how ventilation works for your home.
How does roof ventilation work?
The process of proper ventilation is completed in your attic when the air flows through the attic and it will prevent your home from moisture and or causing overheating. Ventilation only works when the air will flow. There are two simple methods to create the flow of air in the attic.
- The first one is mechanical which will require a power source to make it work.
- The second one is the natural which will happen whenever it is possible. It will use the stack effect and the wind effect to make the air naturally circulate.
When the hot air rises and creates higher pressure in the attic, the stack effect will occur. The hot air that will escape through the vent is known as exhaust, while the cool air that will enter the house is termed intake. However, when the wind starts blowing outside the roof and increases the volume of intake and exhaust, it is termed the wind effect. This will help in the creation of a well-vented attic.
Roof Ventilation at work
The roof ventilation systems are unique to every home and different factors such as regional climate and the design of roofs play an important role in determining the ventilation of the air from the roof. The main types of roof ventilation are listed below.
These vents are for the exhaust to escape the attic. The common types of exhaust vents used are ridge vents. They are usually made of the molded, high-impact copolymer and are installed underneath a final layer of shingles to give the roof a seamless look. For a person who is seeing these kinds of roofs, the ridge vents would be invisible.
Some of the visible exhaust vents that are attached at different places of the roof are roof louvers, gable louvers, wind turbines, and power attic ventilators. These kinds of vents work without the use of any energy, they are part of the natural venting system.
However, you can add power attic ventilators that will run on a power source and will remove the air from the attic.
These vents are much harder to be spotted as compared to the exhaust vents. These vents usually come with the name edge vents and they are also made up of copolymer material. These vents are installed at the eaves under the soffit, at the drip edge, or under the shingles of the roof.
The intake vents work in collaboration with the ridge vents to allow the cool air to enter the attic and force the warm air to escape.
Benefits of roof ventilation
Extends the roof lifespan
The ventilation process helps in increasing the life of the roof. When it snows, the snow starts to accumulate on the roof, and the heat from the inside if not ventilating starts to melt the ice which causes damming on the roof. If it is exhausted properly, the ice will melt and run off the roof, enhancing the lifespan of the roof.
Reduce energy costs
The ventilation process helps in keeping the hot air out and cool air inside the house in the summer season, which allows your cooling appliance to work less while saving energy.
If your home feels too hot, call Roof Crafters today. We serve Baton Rouge, Hammond, Mandeville, and the entire North Shore areas of Louisiana.