Home Insulation and R-Values of Materials Used

In countries where cold and heat can be extreme climate conditions, home insulation is a necessary action to make homes (including buildings) warm, livable, and comfortable. Constructing the necessary structures to make your home warm can reduce your annual costs of making your home comfortable.

The initial expenses in making these insulating structures for the home can be a bit expensive. However, this expense is a one-time event. This surely beats the yearly expenses you need to fork over to heat your place with electricity. After some time, your one-time expense will pay for itself.

Houses

It is fortunate that houses these days are usually built with a good home insulation standards compared to the older houses built around 20 years ago. For today’s new owners of these older houses, retrofitting their structural insulation is the only way to go to improve the energy efficiency of the houses.

The insulation retro-fitting is necessary because older houses have run-down insulation due to age and general wear and tear. (Some of the old houses are also insulated inadequately in the first place.)

Sounds

For added advantage as being an energy–saver, fiberglass insulation also works as a sound absorber. When installed in walls and ceilings, it reduces the transmission of unnecessary sound from one room to another, and from the outside.

This is advantageous since these days surroundings are getting noisier every day. More home owners are also sound-proofing their homes for more comfort now that the extraneous sounds can now be effectively reduced. (Some projects totally eliminate the unnecessary sounds.)

Areas

There are important areas that really need insulation inside your home. Examples that come to mind immediately would be the attics and the walls. This definitely increases return on investment (ROI) value. The insulation raises your home’s value after you had invested in insulating the critical areas.

The other areas that would also need insulation would include your ceilings with unheated spaces, the basement walls, the floors above vented crawl spaces, cathedral ceilings, floors over unheated garages or porches, knee walls, and those in-between interior walls (bathrooms), ceilings or floors for extra sound control.

The amount of insulation your house needs depends on where you live. Look it up from the files of the E.S. Department of Energy and the International Energy Conservation Code to see how much your insulation needs would be.

R-values

R-values are the measurement used to determine the insulation effectiveness of the materials you are using. “R” stands for resistance to heat flow. The higher the R-value for a material, the greater is the insulating power of that material. In insulating materials available commercially, the R-values are usually printed in the insulating materials.

Options on materials

Currently, there are many varieties of insulation materials that you can use – fiberglass, mineral wool, cellulose, foam and cotton. (A manufacturer has just added a new mineral wool, earthwool in its line-up.)


When choosing materials for your home insulation, they should possess the following: thermal performance (R value), lifetime performance, fire safety, moisture, air infiltration and environmental benefits.

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