Insulation Materials

Foregoing an in-depth discussion about the values of insulation, let's assume a mutual understanding of the inverse relationship between insulation and energy costs.  The costs incurred by beefing up your insulation will be returned to you shortly in the form of lowered bills, comfort, and extended life for your furnace and air conditioner. 

If you suspect that some areas of your home need extra insulation, check the map distributed by the U. S. Department of Energy.  They recommend specific levels of home insulation, measured by R-value, for every part of your home.  For example, attic insulation generally requires the highest R-value, whereas interior floor insulation needs less.  Find out the R-value of your insulation and compare it to the map.

When choosing what materials to use in insulating your home, the main considerations should be cost, R-value, and thickness. 

Fiberglass The most common kind of insulation for attics, floors, and walls, fiberglass is made from molten glass and spun into thick blankets.

Rock Wool Like fiberglass, this is spun from molten rock and minerals.  Though it is also formed into batts or blankets, rock wool insulation is also used as a loose filler. 

Cellulose Most insulation materials are environmental sound, but cellulose insulation is a particularly smart way to use discarded newspaper and cardboard.  It is a loose fill or wet spray insulation.

Synthetic Recently synthetic foam boards are being used between studs for wall insulation.  Made from polystyrene or polyurethane, the boards are rigid and easy to install during construction.

Expanding Foam Not for the do-it-yourselfer, but a great product.  While a little more expensive than other methods, the spray method is worth it.  Spray insulation enables expanding foam to fill unseen crevices with a higher R-value at any thickness.  It is a new technology so you'll need to hire a contractor. 

In most cases, doing it yourself is a reasonable undertaking.  With proper planning, insulation can be installed in a couple of days.  Here is a short list of all the things you'll need:

Utility Knife

Staple Gun

Straight Edge

Work Lights

Broom Handle

Dust Mask

Goggles
 

Enjoy your efficient home when your done.  While doing it, be sure to cover up exposed skin and think of all the money you'll save. 

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