Office facade case study · LOPO archive record
Dark grey terracotta at the Hongyun Honghe Group office building
A long, low office frontage uses dark grey terracotta panels to establish a restrained base beneath the building’s brighter metal-and-glass upper volumes. This revised case study preserves the complete four-image archive and separates recorded project facts from details that still require confirmation.
- Project
- Hongyun Honghe Group Office Building
- Building type
- Office building
- Project location
- Not stated in the 2017 archive
- Architect / design team
- Not stated in the 2017 archive
- Completion year
- Not stated; archive published in 2017
- Facade area / quantity
- Not stated
- Recorded product
- Dark grey terracotta panel
- Historical item number
- F3018889
- Historical module
- 300 × 1200 × 18 mm
- Supply attribution
- LOPO panel stated by the original LOPO project post
The facade at building scale
The front view shows a broad, symmetrical office complex with a glazed central entrance and long wings. Dark grey cladding is concentrated at the lower occupied bands, while lighter metal and glass define the upper roofline. The contrast gives the low facade a continuous datum without relying on a bright accent color.
The image confirms the visual role of the grey panels, but it does not establish the full wall build-up or the extent of LOPO’s contractual scope. Panel manufacture should not be conflated with subframe engineering, installation or whole-envelope performance unless project documents confirm those responsibilities.

Panel rhythm, openings and corners
Closer views show the dark grey units set in long horizontal courses. A regular joint grid aligns around narrow windows, while changes in plane are handled at projecting corners and recessed wall sections. The subdued finish reduces visual competition with the continuous upper glazing and emphasizes the building’s length.
Horizontal module
The recorded 1200 mm length supports a stretched facade rhythm. Current shop drawings should verify the actual installed module, joint width and any cut pieces.
Window coordination
Openings interrupt several panel courses. Sill, jamb, head, drainage and air-seal conditions require project-specific details; the photographs do not reveal concealed interfaces.
Corner continuity
Returns maintain the grey field around changes in plane. Confirm whether corners used standard cut panels, special pieces or another recorded solution before citing the precedent.



What the historical product record does—and does not—confirm
The 2017 post records a dark grey terracotta panel under item number F3018889 at 300 × 1200 × 18 mm. These are useful archive identifiers for discussing the photographed facade. They are not a promise that the same code, clay body, color standard, tooling or stock status remains current.
The former article also made broad claims about energy savings, thermal bridges, acoustics, seismic behavior, corrosion, weather protection and individual panel replacement without project reports or assembly details. Those statements have been removed. Any present-day specification should rely on current samples, drawings and test documents for the proposed panel and complete support system.
Using this precedent in a current office project
- Reference the archive code F3018889 only when asking LOPO to identify a current visual equivalent; approve a physical color and surface sample for the new project.
- Confirm panel length, width, thickness, orientation and joint layout against current manufacturing limits and elevation geometry.
- Coordinate window perimeters, corners, parapets, base conditions, drainage paths and movement joints in project-specific shop drawings.
- Request current product and system documents applicable to the project location, support arrangement, design loads and regulatory brief.
- Build and approve a representative mock-up where color range, joint shadow, corner treatment and interfaces can be reviewed together.
Discuss a dark grey rainscreen facade
Use this office project as a composition reference, then confirm the current panel, finish, module and support strategy for your own building.
