Installing Fiberglass Insulation In Attic

All kraft faced insulation is easy to cut with a sharp utility knife or insulation knife.

Installing fiberglass insulation in attic.

Lay down boards or plywood sheeting to help you be able to walk safely in the attic space. It s budget friendly and newer products don t irritate the skin and lungs. Loose fill or batt the common term for blanket insulation. For more information see install blown in attic insulation and our.

If installing fiberglass mats start by laying the mats at the furthest point from the attic access. There are many different ways to install insulation. First you ll need to determine your r value. When installing fiberglass insulation in your home be sure to put the paper or foil vapor barrier facing toward the heated and cooled living area of the home down in attics up under floors in on walls to prevent condensation from occurring.

Includes cutting and fastening insulation and insulating around obstacles. If installing shredded insulation fill the attic space at least 15 inches high with insulation. Fiberglass insulation is manufactured to slow airflow through the material. The pros often use spray foam insulation or blow shredded insulation.

While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. For diy attic insulation you ve got two choices. In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic. Measure the depth of the existing insulation between the ceiling joists in the attic.

If it s a new building simply reference the energy code map. Installing fiberglass attic insulation first time adding insulation to an attic. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Multiply the depth in inches by 3 14 to determine the r value of the existing insulation.

Expert advice on how to install fiberglass insulation including methods for insulating walls floors ceilings attics and more. Lay the batts across the ceiling joists covering the existing insulation. We ll walk you through the steps to help you find the right type of fiberglass attic insulation and the right amount. Fiberglass is probably the most common material.

When installing fiberglass insulation observe all safety precautions. Both can be added to uninsulated attics or layered over existing material. The most common materials are fiberglass cellulose and rock wool. When installing the insulation in wood frame structures you fold out the flange and staple it to the side or front edge of the framing to secure the insulation.