Lacing Insulation to an Attic Hatch Cover

An attic hatch cover of wood or drywall should be insulated in a lightweight frame, not simply by stapling on some twine. The reliefs in this frame permit lacing, and offer finger holds for lifting. Insulation here is high-density R15, in three layers, the bottom having a full-area vapor barrier. A single high-density R38 batt would also do the job.