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4 Issues You May Encounter With Poor Attic Ventilation

4 Issues You May Encounter With Poor Attic Ventilation

A well-ventilated attic is crucial to your roof’s performance and longevity, particularly as the temperatures are rising steadily. Inadequate ventilation can lead to issues that may compromise the system’s structural integrity and trigger health problems. 

Poor Attic Ventilation

1. Shortened Roof Lifespan

The role of your roof’s ventilation system is to prevent excess heat and moisture from lingering inside the attic. The intake and exhaust vents draw fresh air and expel stale, moist air, respectively. If there’s not enough vents, heat and moisture can cause the roof’s decking or sheathing to attract moisture and accumulate rot. Failure to address this can shorten the life of your shingles and underlayment. Granule loss and shingle cracking and buckling are signs of inadequate attic ventilation to watch out for.

2. Mold and Mildew Growth

Mold and mildew aren’t only harmful to the health of your household. These can also be detrimental to your roof, especially if the attic isn’t well-ventilated. Humidity and moisture can accumulate inside, creating a damp environment that’s suitable for mold and mildew growth.

3. Ice Dam Formation

During the winter months, the heat inside an inadequately ventilated attic will cause snow to melt the bottom layer of snow on your roof. This melted snow will then move down to your roof’s edges, where it will freeze again upon contact with the cold surface. This process will repeat over and over again until ice dams start to form. These can force water back up onto your roof, creating leaks..

4. Rust and Corrosion

Rust and corrosion are also a result of excess moisture collecting inside the attic. These often form in areas where nails and fasteners are located. If not addressed, some of the components like vents and plumbing straps may eventually fail.

Make sure your roof and attic is well-ventilated with the help of the professionals at ABM Services & Renovations Inc. Call us now at (770) 282-3700, or fill out our contact form for a free, no-obligation quote. We serve homeowners in Atlanta and McDonough, GA.