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