Which Is Better Blown Or Rolled Insulation In The Attic

To get the full r value of insulation it must be in contact with the conditioned space.

Which is better blown or rolled insulation in the attic. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation. Batt insulation or about insulation removal and or installation for your home or building we re here to help. Blown in insulation is made of cellulose fibers. Batt insulation take time to read this column.

A large machine outside churns the chunks and uses air to blow them up through the hose. Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless. In either case get an extra bag or roll you really don t want to run out when you re almost done putting it in. Another thing to keep in mind is that blown in insulation can be more cost effective depending on the attic situation.

The installer taking his best firefighter pose holds a large hose and blows the chunks into the attic. The main benefit of blown insulation is that it is a much more consistent type of insulation. Blown in fiberglass vs fiberglass batts which is better. 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.

With this method the insulation is simply blown onto the attic floor and no matter what type of joists studs or wiring that may be in play the blown insulation will naturally form itself tight around any of these creating a layer of strong insulation. If you have questions about blown in vs. Blown in spray foam batts and blankets. Batt insulation is available at home centers and lumberyards.

With blown in insulation you can expect an r value of 2 2 to 2 7 per inch for fiberglass and between 3 2 and 3 8 per inch of cellulose. Before choosing blown vs. Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical. Blown in fiberglass insulation will perform better against fiberglass rolled batts.

We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. The number one prep step. Blown a better choice is insulation that comes in smaller chunks. This type of insulation was invented in the 1920s.

It is possible to reach the same r value using less of this spray insulation than using the typical rolled insulation. Handy homeowners can install blown in insulation in the attic. While you may have to take down drywall or remove flooring in order to lay down rolled insulation blown in insulation can be applied through small holes drilled into the cavities between the studs.