Insulated Attic Walkway

Attic hatch or door.

Insulated attic walkway.

The attic walkway is constructed so that sits above the horizontal chords of your attic. The blown in insulation can be blown right over the ductwork. The only means of traversing the attic is by walking the joists. I would recommend fiberglass blown in insulation rather than cellulose because it is not conducive to insects.

If you can insulate below the floors use rock wool or fiberglass batting to the depth of the floor joists. However if you need to make it narrower i would recommend standing some unfaced blanket insulation on end along the edges of the walkway to hold the loose. There is no walkway or landing in the attic. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

If you need a second layer of batting insulation lay it perpendicular to the first layer. If you find leaks seal with an appropriate foam. Affix rigid foam insulation to the attic side of the hatch or door. Do you just wade through the insulation on your inspection.

You could also lightly spray for insects over fiberglass if needed. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. If conditioned air is seeping into the attic in winter it can condense it s moisture out in the cooler layers of the insulation sometimes to the point of dripping through onto the ceiling but it also increases the moisture content of the wood in the attic. I would think this could be a hazard as you would disturb the insulation might miss a step and fall through the sheetrock or trip over a hidden.

This is because the horizontal chords are the strongest part of the attic. If you can make the walkway 2 wide it most likely would not be necessary. Pull down stair or ladder. Insure there are no air leaks around plumbing vents electrical wiring or in corners.

The floor must extend beyond the insulation so that the insulation is properly covered.