Attic Insulation Squish Down

Add the right kind of insulation.

Attic insulation squish down.

Before blowing in your insulation you ll need to create a barrier to keep the insulation from falling into areas where you don t want it like your walkway or down the attic hatch. When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Place a 2 inch by 3 inch board directly on top of the joist nearest to the edge of the attic with its largest. 6 25 batt 5 5 cavity depth 0 75.

But while many see the benefits of insulating our houses. The north american insulation manufacturers association naima has a little two page document about compressing fiberglass insulation pdf. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. When you compress fiber glass batt insulation the r value per inch goes up but the overall r value goes down because you have less inches or thickness of insulation.

More insulation installation tricks and tips work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just. You can use a piece of rigid foam and attach it with cap nails. Let s look at an r 19 batt in a 2x6 cavity step 1. Fiberglass insulation a man made mineral fiber con structed from a variety of materials such as sand and recycled glass is the most popular form of insulation in the united states more than 90 percent of homes in america are lined with the pink stuff source.

Walk to one end of the attic by carefully stepping only on the wooden ceiling joists. Here s what they say. The higher the r value the better the thermal performance of the insulation.