How Install Insulation In Attic

Connect the hose to the blown in insulation machine.

How install insulation in attic.

Next any stored belongings or debris in the attic are removed and stored in a safe location that is out of the way. Begin at a wall and work toward the center of the attic floor or the entryway carefully placing insulation between joists and ensuring a snug fit. There are many different ways to install 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.

The pros often use spray foam insulation or blow shredded insulation. If you re installing additional insulation in an attic that s already insulated use unfaced insulation that doesn t have a vapor barrier. 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. Overlap the seams by about 12 inches and run the plastic up the walls at least 6 inches.

If installing fiberglass mats start by laying the mats at the furthest point from the attic access. Spread plastic sheeting over the crawlspace floor to block ground moisture from entering the area. How to install fiberglass insulation step 1. Lay the batts across the ceiling joists covering the existing insulation.

If installing shredded insulation fill the attic space at least 15 inches high with insulation. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. When installing multiple layers of insulation for optimal thermal performance install the first layer bottom layer parallel to attic framing members and flush with both bottom and top. Begin laying in.

Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and. Lay down boards or plywood sheeting to help you be able to walk safely in the attic space. Check the insulation manufacturer s instructions for the necessary thickness of plastic. When laying insulation it s a common mistake to cover up the soffit vents.

To install insulation batts and blankets if using insulation with a vapor retardant facing install the material with the vapor retardant side down. In the attic install a card that indicates insulation levels in the house to meet code requirements. 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. Old insulation is removed and the attic space is cleaned out.