Attic Insulation

Attic Insulation

When it comes to your home's interior comfort level and energy efficiency, your attic plays an important role. Without proper insulation, you'll be throwing money for your home's energy costs right out the window to compensate for heat and cooling loss.

Check Your Insulation

The first thing you should do is make sure you have enough insulation. First, look across the attic floor. If the insulation is above the floor joists, you have enough. If it's level or below the floor joists, add more insulation until it's above the joists. Next, make sure insulation is evenly distributed throughout the attic. Check closely around eves and low spots, then add insulation in those areas as needed.

Adding More Insulation

If you need to add insulation to your attic, determine the R-value and type of insulation you need. R-value, indicated on all insulation, measures resistance to heat flow. Your R-value requirements are usually based on the climate where you live. In average temperature regions, the recommended R-value for most homes is R-38.

Types of Insulation

The two most common types of home insulation are fiberglass and cellulose:

Fiberglass – Fiberglass insulation is made from different inorganic materials mixed with sand, then melted and spun into tiny glass particles. It's available in various size rolls and batts that provide easy installation. Fiberglass insulation is fire-retardant.

Cellulose – Cellulose insulation, also called loose-fill, is made from organic materials mixed with ground-up newspapers. It must be blown in with a special machine, so it's more difficult to install. Since it's made with organic materials, it's combustible and fire-retardant chemicals must be added for safety.

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