During a warm summer day, would you rather stand outside waving a hand fan or wearing a thick wool coat? Of course you’d pick the fan; who would put on a thick coat during the summer? But your home does need a thick coat for summer weather: insulation. The fiberglass bats, spray foam, and blown-in insulation in the walls and ceilings serves as a barrier to keep out heat during the summer, much the way that they keep heat trapped inside during winter.
However, not all insulation is made equal. To determine how well a piece of insulation prevents the movement of heat, you look at the insulations “R-Value.” We’ll explain what R-Value means so you’ll have a better idea how to pick the right insulation to make your home more energy-efficient.
You will need the help of professional insulators to get the best job done. Call Air Conditioning Experts, Inc. when you are looking for insulation in Marietta, GA.
The basics of R-value
R-value measures how much resistance to the movement of heat through conduction a material offers. It depends on the type of insulation, its thickness, and its density.
R-value is determined in a laboratory through the following equation: temperature difference X area X length of exposure divided by heat loss. The resulting numbers range, but for most insulation, R-19 is common.
The higher the R-value, the more the material slows down heat movement. However, higher R-value doesn’t necessarily mean better insulation, since there are more factors involved in determining insulation quality: R-value only measures the movement of heat through conduction (contact) and not through convection or radiation.
Because other factors are involved in the quality of insulation that goes beyond R-Value, you need to have experts help you with selection and installation. The highest R-value blown-in insulation won’t provide you much heat protection at all if the installer put it in shoddily, leaving behind large air gaps where heat can simply escape around the material. Compressing a material unnecessarily will reduce its R-value. Also, the wrong type of insulation put into parts of a house will have scant insulating power no matter how high the R-value. Don’t let the consumer obsession with R-value trick you into simply buying the highest rated insulation you can find and try to put it in yourself.
Call Air Conditioning Experts, Inc. for the work with insulation that will balance out R-value with other important factors, and then combine them with superb installation services. We offer new insulation service as well as replacement for your old insulation in Marietta, GA that will ensure you get the most value from your home’s insulation for a cooler summer and warmer winter.