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There are a couple main types of insulation including batt, spray foam, and blown-in insulation. Batts are made of long “cushions” of fibers (usually cotton or fiberglass) which are cut and placed to fill a space. Blown-in blows chunks of insulation into a space. Sprayed is another kind of insulation in which an area is covered with spray foam.

Blown-in Insulation: A Top Choice for Insulating Homes

All of these types of insulation have pros and cons, but blown-in insulation offers some distinct advantages over the competition:


For one, blown insulation (also known as loose-fill insulation) adjusts well to any size and shape. That means blown insulation is ideal for small places or hard-to-reach places that batt simply can’t accommodate. There is no need to make holes in walls or tear them down. Blown-in can access most spaces without hassle.


Blown insulation can be cost effective because it can be installed very quickly. You will need to call a professional installer because it requires large equipment to apply (no DIY options with blown). However, the process works rapidly, so installation costs are often reasonable. Blown-in is consistently cheaper than spray foam insulation (which can cost up to three times as much).

Blown-in insulation can also help save on power bills. Where batt has seams where air can seep through, blown in makes for a unified cover that is less likely to be penetrated by outside air. Without the gaps or voids common to batt insulation, you can achieve greater energy efficiency.


Blown insulation is made of a couple main materials: fiberglass or cellulose. Cellulose is derived from recycled paper and fiberglass comes from a rapidly renewable resource. They insulate with roughly the same degree of efficacy, and both are easy on the environment.

Additionally, if you go with cellulose, blown insulation is less attractive to rodents. (It’s much easier for them to “nest” in fiberglass batts.)

As you check around for the best installation options for your home, don’t overlook the benefits of blown-in insulation.