Savings CalculatorHelp on looking up R valuesWhen trying to determine your current R-Value in the attic, use a ruler to measure the depth of the insulation and multiply the depth by the R-Value of the material. Unless you still have the packaging for the insulation used in the attic, it will be hard to measure the exact R-Value of the installed product. To calculate the R-Value use the following guidelines for estimation purposes only:
Remember, cellulose insulation can be blown on top of existing insulation to improve R-Values without removing the already installed insulation. |
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