The answer to 'lifespan of roof vent' is that the average lifespan of a roof vent is 15-25 years, depending on the material and installation. Roof vents are an essential component of a home's roofing system, responsible for allowing hot air and moisture to escape the attic. They are typically made of metal, plastic, or a combination of materials, and their lifespan can be affected by factors such as weather, exposure to the elements, and proper maintenance.
With regular inspection and maintenance, such as ensuring the vent is properly sealed and free of debris, a roof vent can often last 20-25 years or more. However, in harsh climates or with poor installation, a roof vent may only last 15 years or less before needing replacement. It's important to monitor the condition of your roof vents and address any issues promptly to maintain the overall integrity of your roofing system.