Attic Insulation Batts Vs Blown

It comes in rolls and has paper backing on one side.

Attic insulation batts vs blown.

Very common very problematic. 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. Disadvantages of batt insulation. You also don t see any gaps that allow you to see all the way down to the ceiling drywall.

The photo above shows an attic insulated with blown cellulose. Compared to blown in insulation batts can reach a resistance rating r factor of over 3 1. We use both blown in and batt insulation depending on the situation at hand. The maximum rating of batt insulation is around 4 2.

You can usually obtain an r factor of 3 1 to 4 2 or slightly higher per inch of material with batts. This will lead to non uniform r values. The answer is it depends. Once installed and expanded to the uniform manufactured thickness batts offer a known r factor.

In short there is less chance of error with blown insulation as compared to batts. Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine. For diy attic insulation you ve got two choices. Notice how you don t see any of the ceiling framing down at the ceiling level.

I don t know about that but it s a common insulation material that works much better in the blown form than in batts. Blown in varieties however typically reach a peak of around a 2 8 r factor. Both can be added to uninsulated attics or layered over existing material. You ve probably got batts in your attic walls and crawlspace right now.

Loose fill or batt the common term for blanket insulation. It is sold in bags and made of materials that are of varying degrees of recycled. You can hire a contractor carrying relevant business insurance and using skilled and trained workers to install your batt insulation much more quickly than a batt insulation install might take. The biggest disadvantage of batt insulation is that it does not fit well in non standard spaces.

That s because blown insulation is great at filling the gaps and giving you a good complete layer of insulation. Batt insulation is that it is a form of loose fill insulation as opposed to a flexible blanket. Batts offer a slight advantage. Current energy standards recommend the installation of a first layer of craft faced moisture barrier fiberglass batt.

The first difference in blown in vs. Blown in insulation thickness can vary in an attic space. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Blown in insulation clearly lean toward using blown in insulation.