The Oven Effect
During a humid New Jersey summer, an unventilated attic can easily exceed 150°F. This extreme heat bakes your asphalt shingles from underneath, causing them to blister, curl, and age prematurely.
Moisture Buildup and Mold
Heat isn't the only problem; humidity is equally destructive. Moisture from your home (cooking, showering) rises into the attic. Without ventilation, it condenses on the roof deck, leading to wood rot and toxic mold growth.
Balancing Intake and Exhaust
Proper ventilation requires a balance: soffit vents pull cool air in, while ridge vents push hot air out. This continuous airflow keeps the attic temperature close to the ambient outside temperature.
If your upstairs is always hot or your roof is aging too fast, contact NJ Roof Installer for a professional ventilation assessment.












