Proper Home insulation
Heat loss can happen in many areas of the home in addition to through the attic, including: the foundation sill, around and through windows, doors, outlets, and switch plates, chases (pipes that go between floors), through interior walls into the attic, through the attic access panel, and exhaust and whole house fans.
Properly insulating your home will not only reduce your heating and cooling bills, but also make your home more comfortable. Older homes were built less energy efficiently than new homes that are built today. By adding insulation to your home, energy bills can be reduced substantially.
To make your home most energy-efficient, the envelope (the structural pieces that separate the inside from the outside) should be properly insulated from the roof down to the foundation. The most common insulated areas are attic spaces and exterior walls. Some houses may require insulating cathedral ceilings, heating ducts in unheated areas, and floors above unheated areas (such as garages).
To get a good idea of how much energy can be saved, a home energy auditor can perform an energy assessment to find out where energy is being lost in the home. In most cases, the findings will not only recommend more insulation but also air sealing.
There are many types of insulation: batts and rolls common with fiberglass, foam board or rigid foam, spray foam, and loose fill (common with cellulose insulation). There are pros and cons to each, and some are more ideal in specific situations. For many reasons, the majority of our work is with loose fill cellulose.