The answer to 'what causes ridge vent' is a ridge vent is installed at the peak or ridge of a roof to allow hot air to escape and improve ventilation in the attic. Ridge vents are a common and effective way to improve airflow and reduce the buildup of heat and moisture in the attic, which can extend the life of the roof and improve energy efficiency.
Ridge vents work by creating a continuous opening at the peak of the roof, allowing warm, moist air to rise and escape through the vent. This natural convection process helps draw in fresh, cooler air through other vents or openings in the attic, creating a balanced airflow that keeps the attic and roof space well-ventilated.