NRS 116.2102
Unit boundaries.
1.
If walls, floors or ceilings are designated as boundaries of a unit, all lath, furring, wallboard, plasterboard, plaster, paneling, tiles, wallpaper, paint, finished flooring and any other materials constituting any part of the finished surfaces thereof are a part of the unit, and all other portions of the walls, floors or ceilings are a part of the common elements.2.
If any chute, flue, duct, wire, conduit, bearing wall, bearing column or any other fixture lies partially within and partially outside the designated boundaries of a unit, any portion thereof serving only that unit is a limited common element allocated solely to that unit, and any portion thereof serving more than one unit or any portion of the common elements is a part of the common elements.3.
Subject to subsection 2, all spaces, interior partitions and other fixtures and improvements within the boundaries of a unit are a part of the unit.4.
Any shutters, awnings, window boxes, doorsteps, stoops, porches, balconies, pads and mounts for heating and air-conditioning systems, patios and all exterior doors and windows or other fixtures designed to serve a single unit, but located outside the unit’s boundaries, are limited common elements allocated exclusively to that unit.
Source:
Section 116.2102 — Unit boundaries., https://www.leg.state.nv.us/NRS/NRS-116.html#NRS116Sec2102.