Roofing Ventilation

Ventilation is the flow of air through a system of intake and exhaust. Intake air is cool air, while exhaust is hot air that needs to escape. A typical roof will have both intake and exhaust vents. Intake vents are known as edge vents and are placed at the edges of the roof. Exhaust vents are known as ridge vents. They are found where two roof planes meet.

Proper ventilation plays a major role in preventing ice damming. Ice damming is a common issue for states that experience harsh winters. Ice and icicles build up on the edges of a roof creating a dam for water runoff. For more information on ice damming, visit our other blog at (site).

In regards to vents, proper ventilation allows hot air to escape before it melts the snow, which then starts to create icicles. Therefore, you know your home is well ventilated when, in winter months, there is snow on the roof, and no icicles.

Another benefit to a well vented roof can also be seen during the summer months. Proper ventilation allows hot air to escape, which then helps reduce energy costs of an air conditioner.

Finally, proper ventilation on your roof helps temperature differences between home floors. For example, you may have poor vents if your upstairs feels so much hotter than the downstairs. Roof vents tend to last as long as a roof. However, harsh weather conditions can damage some vents just as much as the roof itself. Vent only replacement costs are usually between $300 and $700 depending on size and types needed. A good rule to follow is if you are replacing your roof, replace the vents too.

The K&P Exteriors team can help you explore and understand options to protect your roof. Need a roof or exterior inspection and repair from a qualified professional?