Gable Vent is installed on both ends of the house to create a flow of air through the attic by including both intake and exhaust vents. Located at the top of the gable on the end of the house are Gable Vents. Although Gable Vents enhance ventilation, they are not ideal for attic ventilation. They do not offer a uniform airflow traverse the attic and have limited capacity to move large amounts of air. Gable Vents are used more for decorative purposes than the function. They are available in a number of shapes, sizes, materials, and colors for creating the visual appearance. It is important that you have enough Soffit Vents to make Gable Vents most effective. These are intended to be used with a gable roof.
Ridge Cap Vents are very efficient for ventilating your attic. Often covered by the roofing material, Ridge Cap Vents blended into the appearance of your home and runs along the complete length of the roof ridge encouraging uniform ventilation all through the attic area. With the Ridge Cap Vent, it is compulsory to have an equivalent or more amount of ventilation from the Soffit Vent area of the roof. This way the air enters at the lower vents travelling up to the top as it heats and exits out of the Ridge Vent. An insufficient amount of Soffit ventilation can retard the efficiency of your Ridge Vent.
A Ridge Cap Vent having an exterior baffle serves two particular functions. First, helps preventing rain and dust from entering your attic through the vent. Second, the baffle produces a low pressure over the vent when wind travels over it increasing the quantity of air ventilated from the attic. Ridge Cap Vents work well with most roof types and designs but are best suited for gable roofs.
Usually the roof vents are uniformly spaced across one side of the roof and are installed near the top of the ridge. This allows the hot air to in the attic and be expelled out of the roof vents. Roof vents are of two types - Static Roof Vents or Louvers and Power Roof Vents.
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