If you have a dark roof that's absorbing heat from the sun, it could be costing you money. On a hot day, the temperature of a dark-colored roof can easily exceed the temperature of the air surrounding the building. Guess what happens to the inside of your house when the roof gets that hot? It heats up just like an oven, and your air conditioner has to work that much harder to keep up with the rising temperatures. Finding ways to cool down your roof can result in lower energy bills and more comfortable indoor temperatures on hot summer days. Take a look at some options to sun-proof your roof.
1. Coat It
If you're looking for a fast, affordable solution painting your roof with a cool roof coating may be the right choice for you. The coating covers your roof in a white or opaque substance that reflects the heat instead of absorbing it, which lowers the temperature of the roof.
It's not hard to coat your roof–you can do it yourself if you want to. All you need to do is clean and pressure-wash the roof, then apply the coating with a large roller. For best effect, you may need to reapply the coating every few years.
2. Mist It
If a white roof just does not appeal to you, you can cool your roof down with a misting system. The idea is to spray very small amounts of water onto the roof, and as the water evaporates, the roof will cool. This isn't that different from how your body sweats when you're hot, then cools as the sweat evaporates. Think of a misting system as sweat glands for your house.
If you really want to save money, you could set a garden hose to mist and aim it at your roof, but this is impractical for long-term use and may waste water. A better method is to install a misting system that has a timer and sensors to measure the moisture and temperature on the roof.
3. Replace it
If your roof is hot and also old, it may be time to think about replacing it with a new roof that's naturally cooler than your current roof. There are several different types of roofs that maintain low temperatures even without the help of cool coatings or misting systems.
Metal roofs, for example, are light-colored and naturally reflective. Cool-colored tiles or asphalt shingles covered in reflective granules are also good choices for homeowners looking to lower the temperatures above their heads. A green roof, planted with grass and other vegetation, also has most of the same benefits of a cool roof, as well as the additional benefits of helping to reduce stormwater runoff and providing an attractive addition to the house.
If you're not sure which option is best for your roof, a roofing contractor can help you determine the best method of cooling your roof. It's worth a consultation to find out how to save money on your energy bill all summer long. To learn more, visit B And D Construction.