Portable rooftop guardrail assembly

A portable, modular rooftop guardrail system comprising:

• a. a plurality of vertical posts, each post including
• i. a square base plate dimensioned to rest on a roof surface, and
• ii. first and second opposed aperture pairs oriented in a first direction and third and fourth opposed aperture pairs oriented in a second direction perpendicular to the first;
• b. a set of upper horizontal rails detachably secured to a respective vertical post of the plurality of vertical posts by fasteners passing through the first and third aperture pairs, respectively and a set of middle horizontal rails detachably secured to the respective vertical post of the plurality of vertical posts by fasteners passing through the second and fourth aperture pairs, respectively;
• c. a plurality of telescoping upper adjustment rails slidably received within free ends of the upper horizontal rails and a plurality of telescoping middle adjustment rails received within free ends of the middle horizontal rails, the plurality of the upper adjustment rails and the plurality of the middle adjustment rails lockable from sliding by bolts passing through aligned adjustment apertures;
• and
• d. a reversible, self-closing gate assembly that closes an access opening defined by the upper and middle horizontal rails and includes:
• i. two vertical gate support posts, each vertical gate support post supports an upper and a middle gate-support bar, and
• ii. a gate formed by a U-shaped tubular extension telescopically received in a tubular gate receiver;
• wherein each component of the system, in an unassembled state, is sized to pass through a rectangular roof-hatch opening measuring 36 inches by 30 inches.