Attic Insulation

OLYMPUS DIGITAL CAMERAOLYMPUS DIGITAL CAMERAInsulation in the attic of your home is an important component in reducing the amount of energy used to heat and cool your home. Using the right type of insulation and making sure it is installed correctly will prevent structural problems with the roofing, the wood decking supporting the roofing, and the rafters or trusses which frame the roof and attic area. During home inspections in Denver Colorado, and Aurora Colorado, I took these pictures of the insulation present. Most homes built in the last 20 years, or updated within that time frame, have blown in type insulation as pictured here, made of either cellulose material or loose fiberglass. Both are fire retardant and provide appropriate insulation if installed in proper depths. It is recommended that homes have between 10 and 12 inches of attic insulation to achieve a level of R30, which is the minimum level most building jurisdictions now require.
In some cases fiberglass batts are used in attics. Batts are sheets of insulation usually 15 inches or 23 inches wide, with varying widths and packaged in rolls. Batts may have paper backing, foil backing or come without any backing attached. It is important that attic insulation be allowed the “breathe” or let air move through the material to prevent moisture in the attic from forming or collecting on structural components and possibly causing mold or rot. If you intend to add insulation to the attic of your home, make sure to research the correct type to use and have it installed properly to protect the ventilation in the attic, and receive the most benefit from the added material.OLYMPUS DIGITAL CAMERA