Clean Tech 101

Insulating Your Home - What is Insulation and How Insulation can Save on Your Energy Bill

Insulation is vital in keeping your home cool in summer and warm in winter. A home that has been well insulated is at least 7 degrees cooler in summer and 10 degrees warmer in winter. By properly insulating your home, money can be saved in reduced energy costs. A reduction in greenhouse gas emissions into our atmosphers is achieved when less energy is used.

How Insulations Work and the Types of Insulation

Insulation works by providing a barrier to the flow of heat into and out of your home. There are two main categories of insulation products that work in different ways.

Bulk insulation works by trapping pockets of still air within the structure of the insulation material. This trapped air provides a barrier to heat flow.

The other type of insulating product is reflective insulation. The way reflective insulation works is by reflecting a significant amount of heat from its polished metallic surfaces. This polished metallic surface reduces the amount of radiant heat being emitted from the surface.

Where to Insulate

In the ceiling and the roof, external walls and under suspended floors are places where insulation should be installed. If crawl spaces are available, insulation can be installed in existing homes. During replastering or recladding, insulation can be installed in walls.

The Performance of Insulation Materials

The R-value plays an important role when choosing the correct bulk insulation. The R-value assesses the performance of the bulk insulation by determining the material’s resistance to heat flow. The higher the R-value, the greater the resistance to heat transfer and greater the energy savings.

Source: AZoCleantech
Last update 17th February 2008

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