Instaling Attic Batt Insulation

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Instaling attic batt insulation.

The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints. Install baffles against the roof sheathing between rafters so insulation does not seal up these avenues of air circulation.

If you re insulating framed walls make sure the insulation is the correct thickness for your wall studs. Air movement is critical in the attic so moisture moves outside the home. Place the insulation with the facing side down on a piece of scrap plywood. Cut batts to length by setting the top of the batt into the space and cutting against the bottom plate with a sharp utility knife.

This allows the termination of the batt in an area. Wear a long sleeve shirt gloves eye protection and a dust mask. 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. Next any stored belongings or debris in the attic are removed and stored in a safe location that is out of the way.

We re using unfaced batts that are sized to friction fit into standard stud spaces either 16 in. You can install fiberglass batts yourself right over existing insulation but follow these precautions. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. When it comes to insulating your attic there are really only two types of insulation worth considering fiberglass batts or blown in insulation.

Lay the batts across the ceiling joists covering the existing insulation. Leave an extra 1 2 in. Blown in insulation consists of bags of fiberglass or cellulose that are chopped up and blown in to the attic or wall from a machine. Insulate your attic with fiberglass batts.

Position the batt of insulation at the outer edge of the attic and roll the batt in the channel between the joists toward the center of the attic. Of length for a tighter fit. Measure between joists if insulating a floor or attic or studs if insulating unfinished walls to find the correct width for the insulation. Old insulation is removed and the attic space is cleaned out.