A cool roof is one that is designed to reflect more sunlight and absorb less heat than a traditional roof. A cool roof might be built of highly reflective paint, a sheet covering, or highly reflective tiles or shingles. The cooler the roof is, the less heating it will cause in a house.
Cool roofs are becoming more common in developed countries where people tend to want their homes to be as energy efficient as possible. They're also becoming popular with homeowners' associations because they reduce the amount of heat entering buildings via the roof which can otherwise cause problems such as mold growth.
There are two types of cool roofs: commercial and residential. Commercial cool roofs are used on large buildings such as factories and office blocks to reduce their energy costs by preventing heat from escaping through their roofs. These roofs are usually made of aluminum or steel panels coated in plastic film.
Residential cool roofs are used on houses to do the same thing. However, instead of reducing energy costs, this type of roof reduces heating effects on buildings by making them feel cozier during cold seasons and by reducing the need for air-conditioning. Warm colors such as red, orange, yellow, and green make rooms feel warmer and cool colors such as blue, gray, and white make rooms feel colder. By using these principles, residential cool roofs try to mimic a natural environment.
Cool roofing materials are meant to reflect more sunlight and absorb less heat than regular roofs, much as wearing light-colored clothes can help keep you cool on a hot day. The cooler the roof is, the less heat it will transmit into the building and the better it will be for people inside.
The best-known cool roof material is undoubtedly solar-reflective paint. Other alternatives include dark colored sheets for overhangs and bridges, and colored ceramic tiles. All of these materials work by reducing the transfer of heat through reflection rather than absorption. This means that they must be applied to both sides of the roof in order to be effective.
Solar-reflective paint comes in many colors, but black is the most efficient color for reflecting sunlight. It is also the only color that does not block out all visible light from the sun. Therefore, it is the best choice if you want to avoid heating up your house even on the hottest days.
Black is also the most effective color for preventing heat from entering your home via the roof. If you have white or other bright-colored homes, consider using solar-reflective paint on their underside too. This will allow some sunlight in while protecting your furniture and other valuables from getting scorched.
How do cool roofs function? Some of the solar energy or radiation, however, is absorbed as heat in the roof. Cool roofs absorb less heat and reflect more sunshine than regular roofs. Traditional dark-colored roofing materials absorb a lot of heat from the sun, keeping them warm in the sun and heating up the structure. However, they also tend to melt snow and ice that would otherwise damage the roof.
The reduced temperature of the cool roof causes snow and ice to stick to the roof instead of melting away. This means that cool roofs can keep traffic lanes safe for longer and remove the need for frequent salt applications.
Also, cool roofs help reduce air conditioning costs during hot summers months. The reduced temperature of the roof decreases the amount of electricity needed by an air conditioner.
Finally, cool roofs make buildings look better. The color range of cool roofs allows them to match many different styles of architecture while still reducing heating or cooling costs. There are two main types of cool roofs: colored shingles and tile. Colored shingles use pigment that is mixed into the paint used to coat the roof deck. Tile includes all types of roof tiles except clay ones. They are made out of ceramic or plastic and usually come in colors such as white, black, gray, and brown. These types of tiles reflect sunlight back into space which helps cool down buildings during summer months.
There you have it!
Making sure your roof is adequately vented helps minimize your home's energy use and dependency on the air conditioner. Cooler roofs may naturally keep your home cool, reducing your need on an air conditioner. The National Weather Service recommends that you allow for at least 15 minutes of ventilation time when working in areas with elevated levels of pollution.
The best way to ensure you have adequate ventilation is by installing a good roof vent. These can be found in many different sizes and shapes. Make sure that you get one that fits properly so it doesn't leak. If you want to add some aesthetic appeal to your home, consider purchasing a roof canopy. These can be used instead of or in addition to roof vents. They usually consist of a fabric covering attached to a frame structure. Canopies provide shade from the sun and prevent leaves and other debris from getting onto your roof.
Canopies are very easy to install. You will need to first determine how high you would like the canopy to be before you start buying materials.
Light-colored materials reflect heat, but dark roofs, such as asphalt or tar, absorb heat, increasing air-conditioning use to compensate. In other words, building a white or "reflective" roof helps save energy and money. The color of a roof also affects its durability: darker colors tend to be less durable, while whites are more likely to peel off in large sheets when it's time for replacement.
Reflectivity is the key word here. A highly reflective roof will reflect much of the sunlight that hits it back into space, reducing your house's heating costs and preventing your roof from aging prematurely. White roofs are the most reflective, with aluminum being second most reflective and black being the least reflective.
The best time to replace your roof is before significant damage occurs. If you notice any leaks or tears in the material, get them repaired by a professional before they become larger problems. Roofs last between 10 and 20 years depending on how they are maintained; if you care for your roof by removing any debris or old shingles and washing away any water spots with a gentle detergent and warm water, it will help preserve the life of your roof.
Contact your local utility company to see if they offer any incentives for installing solar panels or energy-efficient appliances. Some companies may provide special rates or discounts for those who commit to green energy practices.