Hot air, as everyone knows, rises. Therefore, the best way to keep that hot air trapped, when you want to keep your house warm and cozy during the cold months, is to make sure your attic insulation is up to snuff.
Estimates supplied by the Department of Energy indicate that up to 44% of the energy you spend to heat or cool your home is spent to make up for badly-insulated walls and ceilings. If you stand to lose just under half of that heated or cooled air, then you want to make sure your insulation is the best available on the market.
Blown-in insulation, also known as loose-fill insulation, is in many ways the ideal type for use in insulating your attic. As the name implies, special machinery is used to blow small, loose particles of insulating material directly into the cavities in your attic’s walls and floors. Because of the way the material is inserted into these cavities, there is much less settling with blown-in insulation as compared with other forms of attic insulation. This means that it’s a lot easier to estimate whether or not you’ve got sufficient insulation with blown-in insulation than it is with other types of insulation.
Depending on the options offered by the company you hire to do your blown-in insulation, you’ll have the choice of either cellulose or fiberglass as the material to be used to fill in your walls and floors. Cellulose loose fill, made from recycled newsprint and/or corrugated cardboard and treated with a fire retardant material, has been in use since the 1920s and is an old stand-by. The other option, fiberglass, is great for combating common insulation problems like mildew, fungus, and seeping moisture, while at the same time providing just as much insulation as cellulose.
One nice thing about blown-in insulation is that it can be added on top of any existing insulation you may already have. This allows you to make sure that you’ve got the insulation you need, and the energy efficiency you want, without having to strip off and remove the old insulation and start from scratch.