How To Install Insulation In An Attic Ceilings
Climb the ladder and measure the length of one of the bays between a pair of joists with a tape measure.
How to install insulation in an attic ceilings. See below for a shopping list and tools. When rolling the insulation cut it to length using a utility knife. Find a pre screened local home insulation contractor. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
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. Lay the batts across the ceiling joists covering the existing insulation. This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic. 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.
Fill every joist space completely and evenly with the insulation leaving attic vents uncovered. For all eaves with vents fasten bottom of baffle in place to allow insulation to completely cover the top plate. Calculate how much you need. Before installing determine the insulation material best suited for your home.
Cut side fin and fold baffle at the measured mark to allow for correct insulation height. Begin laying in the insulation starting at an area farthest from the attic access image 1. Using a straightedge as a guide make your cut image 2. Cut a section long enough to fill the bay from a roll of insulation using a utility knife.
Verify the height allows for 1 inch of required air space. Level uneven spots with a rake.