Attic Insulation Batt Vs Blown

Current energy standards recommend the installation of a first layer of craft faced moisture barrier fiberglass batt. That s because blown insulation is great at filling the gaps and giving you a good complete layer of insulation. That makes it fast to install but costlier than batt insulation.

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Often times a combination of the two is ideal.

Attic insulation batt vs blown.

Both blown in and batt roll insulation can be installed in different areas of a home including the attic and the walls. Blown in insulation is much easier on installers. The photo above shows an attic insulated with blown cellulose. Notice how you don t see any of the ceiling framing down at the ceiling level.

Fiberglass insulation is available in blown in form and so is cellulose which is referred to as loose fill cellulose. Sloppy people aren t suited for this job. It is sold in bags and made of materials that are of varying degrees of recycled. 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 fiberglass creates a seamless blanket in your attic. Therefore if you have an abundance of joists and studs in your attic floor or likewise have many wires and other obstructions batt insulation may not be the best way to go. The biggest disadvantage of batt insulation is that it does not fit well in non standard spaces. The maximum rating of batt insulation is around 4 2.

When insulating an attic space many homeowners ask us which is better blown in or batt insulation. Batt insulation is that it is a form of loose fill insulation as opposed to a flexible blanket. Disadvantages of batt insulation. The answer is it depends.

Blown in varieties however typically reach a peak of around a 2 8 r factor. We use both blown in and batt insulation depending on the situation at hand. You also don t see any gaps that allow you to see all the way down to the ceiling drywall. Blown insulation is accomplished by blowing out chunks of either fiberglass or cellulose from the hose of a blowing machine.

Instead of cutting and stapling rolled up layers into place they get to spray the insulation where it needs to go. The thermal performance of fiberglass insulation is directly related to its ability to trap and maintain very small pockets of air. Depending on the material of the insulation the installation method may vary slightly. Compared to blown in insulation batts can reach a resistance rating r factor of over 3 1.

The first difference in blown in vs. Batts must be cut tightly and you can t have gaps.

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