A ridge cap vent is a ventilation system that is installed at the peak of a metal roof, also known as the ridge. It helps to ventilate the attic space by allowing hot air to escape through the ridge cap and helping to regulate the temperature inside the building.
Ridge cap vents are typically made of metal and can be installed over the top of the existing roofing material. They are designed to fit securely onto the ridge of the roof and provide an opening for air to pass through. Some ridge cap vents have a built-in damper or flapper to control the amount of airflow and prevent pests from entering the attic space.
Installing a ridge cap vent on a metal roof can help to extend the life of the roof and improve the energy efficiency of the building. It can also help to reduce the risk of moisture buildup in the attic, which can lead to mold and other types of damage. If you are considering installing a ridge cap vent on your metal roof, it is important to consult with a professional roofing contractor to ensure that it is installed properly and meets all necessary building codes.