While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
How to insulate a single story attic.
Pull the wiring up through the hole and rest it on top.
This method can be made to work but the necessary air sealing details are demanding and fussy.
Lay the batts across the ceiling joists covering the existing insulation.
There are two ways to insulate triangular attics behind kneewalls.
Cut a hole in the insulation wherever there is electrical wiring.
Press and tuck the edges of each part of the blanket to make sure they fit snugly and that there are no gaps between.
The traditional approach is to insulate the kneewall and the attic floor behind the kneewall.
Lay a two by four on top temporarily compressing the insulation to a manageable.
If you need regular access to your attic it makes sense to build a catwalk before you insulate the floor of your attic.