Rooftop Helipad Deck

8x8m raised helipad deck on the 2m grid, steel-framed platform 1m proud of the roof with a perimeter safety net skirt, edge floodlight studs and an access stair cut on one side; takes the helipad marking decal rather than carrying paint.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit