Attic Insulation Blown In Or Rolls

Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.

Attic insulation blown in or rolls.

The big disadvantage with spray foam is cost. The most common options are blown in insulation batts and rolls. For diy attic insulation you ve got two choices. Loose fill or batt the common term for blanket insulation.

Attic insulation can be a diy project with a rented or borrowed blower but is still a challenge. 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. I d blow insulation on the attic floor after air sealing of course. The vapor retarder on top of or between layers of insulation can trap moisture.

Before choosing blown vs. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Handy homeowners can install blown in insulation in the attic. Although professional contractors like attic guys will aid you in making this decision we also feel that it is important for you to understand these insulation types and what makes them different.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Both can be added to uninsulated attics or layered over existing material. Although both forms of insulation are effective we prefer to work with blown in insulation for a number of reasons. Cost for batt insulation per square foot for materials.

Do you need to do anything special for blown in insulation in the attic. Batt insulation is available at home centers and lumberyards. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

Using r 30 for reference a 58 square foot roll cost 61 at a major retailer in october 2018 making the cost of materials close to 1 00 per square foot. Yes you need to have a ceiling to hold the insulation up in the. Blow in insulation is difficult for diyers especially for wall cavities. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.

There are other materials and systems that you can use to insulate your attic. The insulation itself costs about the same for comparable r. Batt insulation take time to read this column. The main benefit of blown insulation is that it is a much more consistent type of insulation.