Importance of Attic Ventilation

Apr 07, 2017

Attic Ventilation is important for many reasons

If you follow us on social media you have seen a lot of information about ice damming and what causes it. In addition to proper attic insulation, ventilation is also a big part of the solution. But there are many other reasons why it is important for a sloped roof to be properly vented.

Ventilation is a system of intake and exhaust that creates a flow of air. Effective attic ventilation creates Vented-unvented roof.jpgcooler attics in the summer and drier attics in the winter, protecting against moisture and an environment for mold.  A hot attic in the summer can also lead to higher energy bills and increased wear on appliances such as air conditioners.

As shown in the graphic to the right, an unvented attic keeps moisture trapped in the attic space while a correctly vented roof allows that moisture to escape.

In areas of the country like ours that experience cold winter months, properly vented attics also prevent ice damming which can lead to all kinds of other problems.  Heat in an
Vented-unvented roof_with snow.jpgunvented attic will cause snow to melt, ice to form and can lead to ice damming. After a fresh snowfall you will see evenly distributed snow on rooftops with the right insulation and ventilation while the ones that don't will have no snow or areas of snow missing.

How does this affect your roof?

Have you ever had a new roof installed that just didn't last as long as you thought it should have? Ever wonder what causes shingles to curl? These can be the results of installing a roof without the right or any ventilation at all.  Here is a video to explain more:  

The cheapest often becomes the most expensive

Remember, the "cheap" contractor may be appealing but if you are having to replace your roof more often does it really end up being the cheapest? Learn about the Ledegar Difference and then schedule an appointment for an inspection and free estimate.

Category: Ventilation

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