Insulating with fiberglass could be one of the most efficient methods for reducing energy costs
Fiberglass insulation has been the most popular insulation material for either commercial or residential buildings. Its high R value and simple installation are the most important reasons fiberglass stands out among the many available insulation technologies.
The term R value is defined as the capability of an insulation product to resist heat transfer; the insulation will do its job more efficiently the greater its R value. Insulation with a high R value will help to keep the heat in the house and save you money on your overall energy costs. Different areas of the country will have different R rating requirements, and will therefore need different kinds of insulation products. You will not need a high R value insulation if you reside in a warm climate. You will see the most energy savings from high R value products in cold climates, as it is the most effective insulation at curtailing heat loss.
Because it is a member of the “loose-fill” category, fiberglass is pliable enough to squeeze into the smallest of spaces and also insulate the bigger areas of attics and walls. Fiberglass insulation is manufactured using glass that has been melted and then spun into fibers. Using recycled glass for much of the raw materials makes fiberglass insulation a reliable and “green” product. These fibers are then packaged both as rolls (glued to a backing paper) or loosely bagged “blow-in” insulation.
The most common type of insulation used in residential construction is fiberglass blankets, which are most often sold in widths which fit snugly in the space between joists and between wall studs. The large, pink rolls of fiberglass insulation have become a common sight.
Blow-in insulation is best for areas where accessibility is too difficult, like eaves and irregular crawl spaces. Using this kind of insulation, small pieces of fiber are literally blown into the space using specialized equipment. To help protect against settling, which could lessen its effectiveness, a lot of the blow-in products are coated with a special glue that keeps everything in place.
Another possible problem with blow-in insulation is the mess. If you disturb the stuff, it will wind up in places you don’t want it, like on the rugs and in your hair and down your back. Therefore, if you plan on turning your attic into a storage space, it would be best to use the pink rolls and then cover the joists with plywood. This will have the added benefit of providing even more insulation for the house. You can also box in the blow-in fiberglass, but installing the rolls is just so much easier, quicker, and less expensive.











