Attic Insulation Batt Vs Blown

That s because blown insulation is great at filling the gaps and giving you a good complete layer of insulation.

Attic insulation batt vs blown.

The biggest disadvantage of batt insulation is that it does not fit well in non standard spaces. I don t know about that but it s a common insulation material that works much better in the blown form than in batts. Fiberglass insulation is available in blown in form and so is cellulose which is referred to as loose fill cellulose. Blown in fiberglass creates a seamless blanket in your attic.

Instead of cutting and stapling rolled up layers into place they get to spray the insulation where it needs to go. Both blown in and batt roll insulation can be installed in different areas of a home including the attic and the walls. Compared to blown in insulation batts can reach a resistance rating r factor of over 3 1. 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.

Often times a combination of the two is ideal. The maximum rating of batt insulation is around 4 2. Sloppy people aren t suited for this job. Notice how you don t see any of the ceiling framing down at the ceiling level.

Batt insulation is that it is a form of loose fill insulation as opposed to a flexible blanket. Depending on the material of the insulation the installation method may vary slightly. When insulating an attic space many homeowners ask us which is better blown in or batt insulation. The answer is it depends.

Current energy standards recommend the installation of a first layer of craft faced moisture barrier fiberglass batt. It is sold in bags and made of materials that are of varying degrees of recycled. We use both blown in and batt insulation depending on the situation at hand. Blown insulation is accomplished by blowing out chunks of either fiberglass or cellulose from the hose of a blowing machine.

The first difference in blown in vs. Batts must be cut tightly and you can t have gaps. That makes it fast to install but costlier than batt insulation. The photo above shows an attic insulated with blown cellulose.

Disadvantages of batt insulation. The thermal performance of fiberglass insulation is directly related to its ability to trap and maintain very small pockets of air.