Attic Insulation Batts Vs Blown

When a home is fully finished the scales of batt vs.

Attic insulation batts vs blown.

I don t know about that but it s a common insulation material that works much better in the blown form than in batts. Both can be added to uninsulated attics or layered over existing material. 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. You can usually obtain an r factor of 3 1 to 4 2 or slightly higher per inch of material with batts.

The first difference in blown in vs. Batts offer a slight advantage. Notice how you don t see any of the ceiling framing down at the ceiling level. Blown in insulation thickness can vary in an attic space.

Once installed and expanded to the uniform manufactured thickness batts offer a known r factor. The answer is it depends. 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. That s because blown insulation is great at filling the gaps and giving you a good complete layer of insulation.

Blown in varieties however typically reach a peak of around a 2 8 r factor. It is sold in bags and made of materials that are of varying degrees of recycled. You also don t see any gaps that allow you to see all the way down to the ceiling drywall. It comes in rolls and has paper backing on one side.

Disadvantages of batt insulation. You ve probably got batts in your attic walls and crawlspace right now. Blown in insulation clearly lean toward using blown in insulation. The photo above shows an attic insulated with blown cellulose.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. The maximum rating of batt insulation is around 4 2. Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine. When insulating an attic space many homeowners ask us which is better blown in or batt insulation.

The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material. Compared to blown in insulation batts can reach a resistance rating r factor of over 3 1. This will lead to non uniform r values. In short there is less chance of error with blown insulation as compared to batts.

Very common very problematic. Loose fill or batt the common term for blanket insulation. Current energy standards recommend the installation of a first layer of craft faced moisture barrier fiberglass batt. We use both blown in and batt insulation depending on the situation at hand.