Attic Insulation Rolls Vs Blown

Rolled insulation should not be tacked down.

Attic insulation rolls vs blown.

It looks like rolls are triple the price but we are able to get them at no additional cost to us. We previously had rolls of r30 and now have the option of rolls vs blown in. To get the full r value of insulation it must be in contact with the conditioned space. 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 am told blown in can go all over the place in a storm and rolls lose their insulation ratings quicker easier. Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical. Blown insulation is accomplished by blowing out chunks of either fiberglass or cellulose from the hose of a blowing machine. It is already removed.

The r value can be reduced if the insulation is squashed or flattened. Blown in insulation requires a professional. The big disadvantage with spray foam is cost. It also can be really itchy during installation.

The first difference in blown in vs. The main benefit of blown insulation is that it is a much more consistent type of insulation. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

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. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Batt insulation is that it is a form of loose fill insulation as opposed to a flexible blanket.

I d blow insulation on the attic floor after air sealing of course. Before choosing blown vs. Batt insulation take time to read this column. Blown in fiberglass vs fiberglass batts which is better.

It is sold in bags and made of materials that are of varying degrees of recycled. It provides great heat and cold insulation. Batt insulation is available at home centers and lumberyards. Another thing to keep in mind is that blown in insulation can be more cost effective depending on the attic situation.

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.