How To Put Up Insulation In Attic

Installing attic insulation requires first preparing the surfaces around the attic entry to ensure that any contaminants in the attic aren t spread throughout the home.

How to put up insulation in attic.

Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and. You only want one vapor barrier in your attic and it should be as close to the ceiling as possible to prevent warm moist air from coming up from the heated house and condensing when it hits the cold air in the attic. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. You should install two layers of insulation in your attic.

Insulating a finished attic there are two basic ways to insulate a finished attic. Then pivot in place and do the same thing to the other side. Using a straightedge as a guide make your cut image 2. Next any stored belongings or debris in the attic are removed and stored in a safe location that is out of the way.

So if you re installing insulation in an attic that doesn t have any used faced insulation and put the paper side down toward the ceiling. If only the living space will be insulated wrap the insulation around the room s walls and ceiling and then continue along the floor of the non living space. Move across the attic until you ve hit your desired height at every point. This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.

Blow in insulation until the hopper is empty. See below for a shopping list and tools. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints. Wood joists must be covered to allow the air to move.

When you reach the end of a line pull the insulation back slightly then place it on a joist so there is a solid surface to cut on. Lay the batts across the ceiling joists covering the existing insulation. In this case the area behind the knee wall will be uncomfortably hot or cold. 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.

The first layer should have the facing against the drywall to act as a vapor barrier. If you want to insulate an area in your crawl space attic or basement spray foam insulation might be appropriate for the job using a low pressure sprayer and the proper safety equipment. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6. Old insulation is removed and the attic space is cleaned out.