How To Install Insulation In An Attic Ceilings

Begin laying in the insulation starting at an area farthest from the attic access image 1.

How to install insulation in an attic ceilings.

For all eaves with vents fasten bottom of baffle in place to allow insulation to completely cover the top plate. Measure and mark the height on the baffle. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. Lay the batts across the ceiling joists covering the existing insulation.

Fill every joist space completely and evenly with the insulation leaving attic vents uncovered. Before installing determine the insulation material best suited for your home. Verify the height allows for 1 inch of required air space. This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.

Calculate how much you need. Cut a section long enough to fill the bay from a roll of insulation using a utility knife. Climb the ladder and measure the length of one of the bays between a pair of joists with a tape measure. Level uneven spots with a rake.

With a helper to load the blower with insulation as needed start at the perimeter of the attic and work toward the attic access door. Choose your insulation type. Find a pre screened local home insulation contractor. See below for a shopping list and tools.

Using a straightedge as a guide make your cut image 2. When rolling the insulation cut it to length using a utility knife.