Importance Of White Roofs
The heating penalty associated with white roofs and the importance of geographic climate are important issues of which american building owners need to be aware.
Importance of white roofs. He is a member of csi. A home with a white roof maintains a temperature cooler than that of the outside air. There is an effect known as a. However insulating underlayment does the bulk of the work as far as keeping temperatures down is concerned.
So in other words installing a roof that is white or reflective helps save energy and money. White roofs reflect a tremendous amount of the sun s rays. Greg luna is president of luna associates provider of products and services to commercial building roofing contractors specifiers and owners. White roofs are more reflective than green roofs reflecting roughly three times more sunlight back into the atmosphere and therefore absorbing less sunlight at earth s surface.
White roofs don t absorb as much heat which greatly extends the life of the roofing material. A british visitor to bermuda will feel instantly. It has long been known that installing white roofs helps reduce heat buildup in cities. By absorbing less sunlight than either green or black roofs white roofs offset a portion of the warming effect from greenhouse gas emissions.
White roofs are better for your heating bill and the planet. White roofs keep roof temperatures low and can help you save money and energy. When your black roof is absorbing heat your home is also absorbing heat especially during the summer when we are depending on air conditioning to cool down our homes. White roofs are becoming quite popular these days as they come with a number of benefits.
The secret is in the design of their houses and particularly the white stepped roof which is still in use 400 years after it was first introduced. So what does this mean for you. Department of energy there is widespread belief that white reflective roofing systems even on buildings in northern cities like new york and chicago are more efficient and more cost effective than dark roofing and that these systems also reduce global warming and the heat island effect in which dark colored building materials raise the ambient temperature in urban areas by a few degrees in summer. Light colored materials reflect heat while dark roofs such as those made of asphalt and tar absorb heat driving up air conditioning consumption in order to offset it.
As we all know energy conservation is a serious issue and it is important to find eco friendly ways to build homes commercial buildings etc.