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The Summer is Approaching - New Roof Design Can Help Cool Your Home

As the summer rapidly approaches, roofing styles in South-Western USA directly influence the temperature of your home and therefore the cost to maintain a comfortable temperature.

In a new series, written by our resident building expert Martin Davies, he takes a look at what you should consider when choosing a new roof for your home.

"The prevailing climate and achieving maximal energy efficiency are some of the most important considerations when choosing a new roof style in warmer parts of the USA such as Arizona and California.

It is important to choose a roof that helps keep a building cool in a warm or even hot desert climate and to avoid high air conditioning costs in the spring and summer months.

The roof is the number one barrier against the elements and the type of roof that you choose should have the ability to deflect as much heat as possible. In addition, it should also release the energy not store and absorb the built up heat from the sun at the end of a long, hot sunny day.

Several factors affect how the suns energy is stored or released from roofs and certain materials are either very good or very poor at achieving this. Some materials will encourage the home beneath it to become warmer and this is especially true of traditional asphalt shingle as a lot of the energy is absorbed due to the nature of the material and the dark color.

A new method to control heat absorption is using cooling roof coatings which are  improving each year as technology improves and there are several coatings that can be applied to roofs to reflect heat and release energy such as foam sprays, ceramic paints and elastomeric sealers.

If you have existing asphalt or other type of roof these aftermarket products can be applied to reduce the heat absorption. It is important to consult with a specialist roofing contractor to determine the best method for your home and comply with local building codes.

There are other types of heat barrier underneath the roof itself called a radiant barrier. This under roof barrier involves installing a reflective material such as a special reflective spray or metal such as aluminium within the attic space which acts like an internal radiating mechanism to reduce heat build-up. It is critical to consult with a professional who has experience of roofing projects in warm or desert climates and who is fully up to date on all the latest technology in heat absorption and dissipation."