Preventing Heat Gain in Your Tempe Home: Your Foolproof StrategyHeat gain in your Central Arizona home is the result of solar radiation hitting your home’s roof, walls and windows. Heat gain can cause your home to heat up dramatically during the day, raising your energy costs and lowering your comfort level. Here are five tips for preventing heat gain from taxing your cooling system this summer.

  1. Lighten your exterior. Dark paint on your home absorbs up to 90 percent of the solar radiation that hits it, some of which is sent into your home by way of conduction. Light-colored exteriors deflect most of the sun’s radiation and keep your home cooler inside.
  2. Apply a reflective coating to your roof. Even light-colored shingles can’t combat the sun’s rays when it comes to your roof, which accounts for a full one-third of the heat gain inside your home. Reflective, waterproof coating is readily available at your local home improvement store and is painted on to help keep your home cooler during even the longest days of the year.
  3. Install sun-control film on your windows. Sun-control films reflect about 80 percent of the sunlight that comes in through your windows, which accounts for about 40 percent of the heat gain in your home. Window films are best installed by a professional to prevent air bubbles and seams, but if you’re handy with this sort of thing, you can install it yourself.
  4. Landscape for shade. Trees, shrubs and vines can considerably reduce your solar heat gain by providing shade and a microclimate that is up to 9 degrees cooler than the surrounding area. Consider height, branch spread and growing speed when choosing trees and shrubs for your home’s exterior. Grass or small plants in your yard can lower the temperature of the ground by up to 10 degrees in the summer.
  5. Make sure you have adequate insulation in your attic. R-30 insulation is ideal for Arizona, where winters are generally milder than northern regions.

For more expert advice on preventing heat gain in your home, please feel free to contact us at Wolff Mechanical, serving Central Arizona with a high level of customer satisfaction.

Our goal is to help educate our customers in the Phoenix Valley area of Arizona about energy and home comfort issues (specific to HVAC systems). 

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