What is Batt Insulation?

November 18, 2014
niki dube

Flickr image by moppet65535

Batt insulation is pre-cut, fiberglass or rock wool insulation. It’s what you probably imagine when you picture insulation in your mind. However, instead of coming in rolls, it comes in flat pieces. Some batts come with paper or foil facing and some come without facing. Determining which to use depends on your home and the climate in your area.

Batt insulation can be used to insulate walls, floors, attics, and ceilings most often fit between the framing of the home. Because batts are sold in a variety of R-values, you may need more than one layer to maximize the recommendations for your DC home.

Tips for using batt insulation

  • Always wear protective clothing when working with insulation. This includes pants, long sleeves, gloves and protective eyewear.
  • Measure for the perfect fit. Measure the space between the studs or joists where you will be insulating and buy batts that are cut to fit in that space. Batts that are too small leave gaps of uninsulated space, reducing the effectiveness of your insulation. You also want to ensure that the thickness of the batts fill the depth of the cavity in which they will be placed.
  • If you are using batt insulation with facing, be sure to place the facing so that it is closest to the living area.
  • For oddly shaped areas, use a utility knife to cut the batts to fit properly, leaving no more than a half-inch extra for a snug fit.
  • When working around cables, electrical boxes, and pipes, split the insulation in half and put it on either side of the cables. Trim the area around electrical boxes, being careful to no cut the wiring while still ensuring a tight fit.

Installation and fitting are crucial for batt insulation to function properly. For help with determining the best insulation options for your home, or to hire a professional to install the insulation for you, give us a call. It’s second nature for us.