How To Install Insulation In An Attic Ceilings

Cut side fin and fold baffle at the measured mark to allow for correct insulation height.

How to install insulation in an attic ceilings.

When rolling the insulation cut it to length using a utility knife. See below for a shopping list and tools. Using a straightedge as a guide make your cut image 2. Verify the height allows for 1 inch of required air space.

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. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. For all eaves with vents fasten bottom of baffle in place to allow insulation to completely cover the top plate. This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.

Lay the batts across the ceiling joists covering the existing insulation. Find a pre screened local home insulation contractor. Before installing determine the insulation material best suited for your home. Climb the ladder and measure the length of one of the bays between a pair of joists with a tape measure.

Cut a section long enough to fill the bay from a roll of insulation using a utility knife. Measure and mark the height on the baffle. Check pipes and vents. 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. Calculate how much you need.