Which Way To Install Attic Insulation

If you re installing additional insulation in an attic that s already insulated use unfaced insulation that doesn t have a vapor barrier.

Which way to install attic insulation.

Both can be added to uninsulated attics or layered over existing material. I live in illinois and it gets cold in the winter. But the inspection report says that the attic. Lay the batts across the ceiling joists covering the existing insulation.

While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. There are many different ways to install insulation. Determine the type of insulation needed for your attic. The purpose of insulation facing.

So i am not sure which way to install the new insulation. The facing on kraft faced insulation is made of kraft paper with an asphalt coating that makes the paper impermeable to water vapor. You can find out more in our articles on how to apply a vapor barrier to attic insulation and which way to face insulation. If installing shredded insulation fill the attic space at least 15 inches high with insulation.

Commonly used for diy projects they work well in open spaces like attic floors. If installing fiberglass mats start by laying the mats at the furthest point from the attic access. In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic. I have install new insulation becasue of a valve leak got the old stuff wet.

The pros often use spray foam insulation or blow shredded insulation. If using insulation with a vapor retardant facing install the material with the vapor retardant side down. Chris august 17 2012 at 5 13 am. 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.

We used batt insulation for our project. Batt and roll insulation also called blanket insulation are designed to fit between joists and wall stud cavities. To install insulation batts and blankets. Start by installing temporary lighting such as clip lights and laying a few sturdy boards along the joists to create a walkway.

When rolling the insulation cut it to length using a utility knife. For diy attic insulation you ve got two choices. The paper creates a vapor barrier that helps keep the water vapor in the warm moist heated indoor air from migrating outward into the wall or other structure. Loose fill or batt the common term for blanket insulation.

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. Using a straightedge as a guide make your. Attic insulation is installed in the floor of the attic so you ll need to do a few things to make the process straightforward. Begin laying in the insulation starting at an area farthest from the attic access image 1.