<font color=red>QUICK TIPS</font> Trees: Nature's Air Conditioner

With the current heat wave consuming much of the nation, residential clients will likely be interested in learning about ways to cool their homes while conserving energy. One way to boost your business while helping them out is by explaining the benefits trees can provide to their homes.

The Tree Care Industry Association reports that mature shade tree can block up to 90 percent of solar radiation, which could translate to a significant reduction in a homeowner's cooling cost. A Pennsylvania study found that air conditioning needs could be reduced by up to 75 percent by shading a house with trees.

Computer models devised by the U.S. Department of Energy predict that the proper placement of as few as three shade trees will save an average household $100 - $250 in energy costs each year – and that study was done before energy costs soared!
Solar heat absorbed through windows and roofs increase air conditioner use.
 
Incorporating shading concepts into your landscape design can help reduce this solar heat gain, reducing your cooling costs. With the increased costs of using fossil fuels for heating and cooling our buildings, this course of action will be attractive to clients.

What to do
“Plant deciduous trees on the south and west sides of a building,” advises Peter Gerstenberger, senior advisor for safety, standards and compliance with the TCIA. “Those are the sides where the sun's rays are most intense.”
“Since deciduous trees lose their leaves in winter they offer shade during summer but permit the winter sun to provide warmth,” adds Gerstenberger. “Where there isn't room for trees, shrubs and vines can provide similar benefits.”

Deciduous trees with high, spreading crowns can be planted to the south of a home to provide maximum summertime roof shading. Trees with crowns lower to the ground are more appropriate to the west, where shade is needed from lower afternoon sun angles. Trees should not be planted on the southern sides of homes in cold climates because the branches of these trees will block some winter sun.

Although a slow-growing tree may require many years of growth before it shades a roof, it will generally live longer than a fast-growing tree. Also, because slow-growing trees often have deeper roots and stronger branches, they are less prone to fail during windstorms or heavy snowstorms. Slow-growing trees can also be more drought resistant than fast-growing trees.

Trees, shrubs, and groundcover plants can also shade the ground and pavement around the home. This reduces heat radiation and cools the air before it reaches the building's walls and windows. Use a large bush or row of shrubs to shade a patio or driveway. Plant a hedge to shade a sidewalk. Build a trellis for climbing vines to shade a patio area.

Shrubs planted close to the house will fill in rapidly and begin shading walls and windows within a few years. However, avoid allowing dense foliage to grow immediately next to a home where wetness or continual humidity are problems. Well-landscaped homes in wet areas allow winds to flow around the home, keeping the home and its surrounding soil reasonably dry.

Beyond energy savings and beauty, homeowners who take care of their trees and keep manicured yards find the value of their properties increase--a fact that can help convince clients to subscribe to your maintenance services. A research study at Clemson University lists maintaining beautiful landscaping as a cost-efficient way to increase the value of a home. In a comparison of house prices to house characteristics, location and landscape quality, the study showed houses which obtained an “excellent” landscaping rating from a local landscaping professional could expect to sell at a price six to seven percent higher than equivalent houses with a “good” landscaping rating. Improving landscaping from “average” to “good” resulted in a home premium about five percent.

For more information, call the TCIA at 800/733-2622 or visit the Web site, www.treecareindustry.org.