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Q: What are asphalt granules in roofing?
A: Asphalt granules are small, angular particles that are coated with asphalt and are commonly used as a roofing material. They are typically made from crushed rock, sand, and minerals that are then coated with a layer of colored ceramic.
Q: What advantages do asphalt granules offer in roofing applications?
A: Asphalt granules offer several advantages in roofing applications, including:
1. Reflectivity: Many asphalt granules have a reflective coating that can help to reduce the amount of heat that is absorbed by the roof. This can help to lower the temperature inside the building and reduce the amount of energy that is needed for air conditioning.
2. Durability: Asphalt granules are highly durable and resistant to the elements. They are able to withstand extreme temperatures, wind, rain, and hail without cracking or breaking.
3. Aesthetic appeal: Asphalt granules come in a variety of colors and styles, making them an attractive option for homeowners and businesses looking to enhance the curb appeal of their property.
4. Cost-effective: Asphalt granules are a cost-effective option for roofing applications, as they are relatively inexpensive to produce and install. They also have a long lifespan and require minimal maintenance.
Q: How are asphalt granules applied to a roof?
A: Asphalt granules are typically applied to a roof using a process called "hot-mopping." This involves heating asphalt to a high temperature and then coating the surface of the roof with a layer of hot asphalt. Once the asphalt has been applied, the granules are then scattered over the surface of the roof to create a protective layer.
Q: How long do asphalt granules last on a roof?
A: Asphalt granules can last for several decades on a roof, with some manufacturers offering warranties of up to 50 years. However, the lifespan of the granules can be affected by factors such as extreme weather, poor installation, and lack of maintenance. It is important to have a professional roofing contractor regularly inspect and maintain your roof to ensure its longevity.
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