In some houses this may be the case.
Attic walkway over insulation.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing.
Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in.
In many others.
You could also lightly spray for insects over fiberglass if needed.
The trail you leave in the attic can easily end up tracing a path on the ceiling below.
Exposed floor joists can cause condensation on the inside of the ceiling peeling paint and nail rusting.
If you displace insulation in order to move around in the attic don t forget to put it back as you leave.
Because of this the space is able to supporting heavy loads.
A common misconception is that it takes little more than the installation of some decking over the attic joists to ready an attic for move in.
Walk to one end of the attic by carefully stepping only on the wooden ceiling joists.
The floor must extend beyond the insulation so that the insulation is properly covered.
I would recommend fiberglass blown in insulation rather than cellulose because it is not conducive to insects.
If you can make the walkway 2 wide it most likely would not be necessary.
The blown in insulation can be blown right over the ductwork.
This is because the horizontal chords are the strongest part of the attic.
Place a 2 inch by 3 inch board directly on top of the joist nearest to the edge of the attic with its largest.
The attic walkway is constructed so that sits above the horizontal chords of your attic.