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Insulation

Insulation is typically the best way to protect your home from high heating and cooling costs. An extra layer of insulation can save up to 30% on your energy bills.

A properly insulated home is insulated from the basement walls to the attic ceiling - enveloping the entire house. Yet if you can only afford to insulate part of the house, choose the ceilings.

Studies have shown that as much as 40% of energy loss occurs through the ceilings.

Insulation levels are measured by R-Value - a measure of the insulation's ability to resist heat. Different climates require different R-Values.


There are several common types of insulation, both available in a range of R-Values:

Batt Insulation is typically made from mineral fiber (fiberglass or rock wool) and manufactured in blankets of various sizes and thicknesses. Batt insulation is typically fitted between studs, joists, and beams and should fill the wall, floor, or ceiling cavity without any gaps, voids, or compression.

Blown-in Insulation is typically made from fiberglass or cellulose and is literally blown into the walls and attic through a large hose. Blown-in insulation should completely fill the wall cavities and be an even thickness throughout the attic.

Sprayed or Injected Foam Products are typically made from polyurethane or similar products and are injected or sprayed into cavities where they expand to the desired thickness.

Rigid Insulation is typically made from polystyrene, polyurethane, or polyisocyanurate foam, which is expanded or formed into large sheets. Rigid insulation can be used to provide a continuous thermal barrier in basements, crawlspaces, and on exterior walls.

Are Some Insulations Greener than Others?

Click here for what you should know about Insulation Effectiveness.