Blown Fiberglass Insulation Into Attic

It did not work well but it does slow it down.

Blown fiberglass insulation into attic.

How much does blown in attic insulation cost. Fibreglass insulation is 100 percent flame resistant and will not burn. Blown in insulation sometimes referred to as loose fill insulation is insulation literally blown in with a blowing machine. Each bag of fiberglass insulation will cover approximately 65 square feet of attic space to a depth of 10 inches cellulose insulation covers half as much.

Ten inches of blown insulation provides an insulating value of approximately r 30 1 inch of fiberglass provides about r 2 7 while 1 inch of cellulose is approximately r 3. Blown in spray foam batts and blankets. Batt insulation is available at home centers and lumberyards. The old insulation is now keeping the cool air from filtering into the attic providing a better semi conditioned space.

The material can be either fiberglass or cellulose and consists of fiber foam or other materials in small particles and can even feel like down. On average you can expect to pay between 1 25 to 2 00 per square ft. This light as air insulation is manufactured from glass that is heated to a liquid and then spun into thin fibers. When the attic is sprayed with foam now the reverse is happening.

This type of insulation comes in two types of densities medium and high which translates into an r 11 and r 15 for a standard 2x4 wall. Most of the fibreglass insulation is normally made with recycled material and due to that it reduces the carbon footprint. Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

An average size attic of 1 200 square ft. Blown in insulation requires a professional. Batt insulation take time to read this column. Net net for many reasons you re probably going to decide this job is well worth doing.

It s also worth doing the right way. R 30 to r 60 insulation will cost between 0 15 to 0 65 cents per square foot. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. To install attic insulation and material cost for cellulose fiberglass with a r value of.

A bag of cellulose insulation covers about 30 35 square feet of attic space if you are blowing in 10 inches. When blown into attics and wall spaces loose fill. Before choosing blown vs.