Yes, vents are an essential part of all roofing systems. The question is, how many roof vents do you need? Well, the number of vents will depend on the footage of your roof. What do vents do? The simple explanation to this is vents take in air and exhaust warm air. In other words, they keep the circulation of air going.

The Benefits of Roofing Ventilation

Among the benefits of vents are the following:

Vents prevent the growth of mould and mildew by obstructing moisture buildup in the attic. In snow prone regions, vents circulate air and prevent the ice dams from forming in the winter. By modulating and moderating the temperature, vents help in maintaining energy efficiency in the building.

Types of Roof Vents

 The common types of vents include soffit vents, gable vents, turbine vents, and ridge vents. The function of the different vents depends on the position of the vents. Vents placed at higher levels perform as exhaust vents and those at lower level act as intake vents. 

How Attic Ventilation Works

To create proper ventilation in an attic, You will need intake vents at a lower level beside the soffits, and the exhaust vents at a higher level in the roof ridge. By following this rule, your roof will allow a continuous flow of air through space. The soffit vents will draw cooler air in, and lead the warm air that migrates to the highest point to exit through the vents along the roof ridge.


How Many Vents You Need

To put it in simple words vents have a net free area either the amount of space the vent requires for exhaust and intake. So, place the vents maintaining a fifty by fifty ratio between the two. Some technical specifications matter, if the roof slope is above average because more space will mean more vents.

Signs of Improper Ventilation

If the ventilation is defective, you might face several problems including an increase in energy bills, frequent repairs as heating and cooling equipment work more or breakdown and rippled shingles, Rust and corrosion on metal materials in the attic. You might notice dampness, water stains or frost on the attic side of your roof. Physical symptoms of allergy or respiratory problems may increase in family members due to the spread of fungi spores from mould growth in your attic.

What to Do About a Poorly Ventilated Attic

Do consult a professional team of roofers to identify ventilation problems. You can visit for consultation on roofing issues.