Why Is Newspaper Insulation Good?

Choosing Cellulose

• Cellulose is made up of 80 percent post-consumer content making it a smart choice for environmentally conscious homeowners and builders. Since it is made up of wood fibers, it is better at blocking air flow than fiberglass. Cellulose can be blown into new or existing structures. Some homeowners rent the blower equipment from rental centers, while others hire a professional. Consider a professional if blowing cellulose into existing walls, cathedral ceilings, or other hard to access locations.

Wet or Dry Application

• Cellulose is applied wet or dry. When floor joists or existing walls will support the material, dry cellulose is a good option. A handy homeowner may be able to undertake a dry cellulose application. However, wet cellulose is used in open cavities in new construction. Wet cellulose is sticky and will adhere between the studs of a wall. Hire a certified professional for application of wet cellulose. Too much water in the mix can create a mold and mildew-friendly environment.

R-Value

• The U.S. Department of Energy says that most homes are under-insulated. Most of today's building codes require an R-value between R-22 and R-49. The R-value measures thermal resistance, and the type of material, thickness and density of the insulation affect its R-value. To protect consumers, the Federal Trade Commission closely monitors R-values of insulation. R-value recommendations vary by geographic region; to find R-values for your area, access the Department of Energy's website. Improperly applied insulation, such as insulation that has been overly compressed, can affect the R-value.

Existing Insulation

• Determine the type of insulation that exists in your home before taking on any re-insulation project. Insulation made from vermiculite (a popular choice from 1919 to 1990) likely contains asbestos. The American Lung Association says that inhaling asbestos fibers increases chances of lung cancer and mesothelioma. The Environmental Protection Agency website provides pictures of vermiculite insulation for reference. However, if you're not sure what your home is insulated with, contact a professional.