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Although cool roofs are more of a concern in hotter climates, cooler climates can also benefit from them as well, as over the long run they help the buildings cut down on their carbon footprints. The actual cooling benefits of one of these roof surfaces by far overshadows any potential cold month or winter heating benefits of dark colored roofs that are much less reflective.
The majority of roofs globally at this moment in time are dark colored and therefore less reflective. An obvious off-shoot to this are the higher temperatures these roofs reach and all the problems associated with such an increase. It is well known that a dark colored roof can increase in temperature by almost 50 degrees centigrade in full sunshine in the warmer months and some of the obvious disadvantages of this are described in the following passage.
First and foremost, it can lead to a faster deterioration of the materials used to construct the roof, meaning increased maintenance costs over the roofs lifetime. Also, there is going to be an increased usage of energy due to attempts at cooling the building through use of air conditioning and fans. This not only increases the discomfort of the people in the building, it also puts a strain on the power grid increasing CO2 emissions and therefore impacting negatively on the environment. Not to mention higher utility bills.
Having a cool roof fitted in the place of a dark colored roof has many benefits and can impact dramatically on immediate as well as long term savings in terms of energy costs. Some of the benefits of these cool roofs, which can include green roofs (plant or grass covered), reflective membrane roofs or coated roofs, are listed below.
The most obvious benefit is the energy savings it affords. Even countries in colder climates can take advantage of this. Because roof temperature gain on a white reflective roof, for example, is only about eight degrees centigrade above the surrounding air temperature, the buildings heat gain as a whole is greatly reduced. Therefore demand for power to run air conditioning units or fans in the summer months can be reduced by up to 10%.
Another important benefit is the fact that the actual material used to create the cool roof, has its life expectancy increased dramatically. This also means that any equipment that was used for cooling the building down will also gain from this.
Article Source: http://www.articlemotron.com
What are cool roofs? Why more and more people are opting for cool roofs and why should you consider cool roofing for your home. This article discusses all about cool roofing.
Lastly, but by no means least, the beneficial effects on the environment are increased as there is less lower emissions from greenhouse gases and less air pollution. One of the experts in cool roof are Blue Turtle Roofing. You can check out more details at their website at http://www.blueturtleroofing.com
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