Temperate and tropical coastal environments are often highly corrosive, primarily due to their unique climate and geographical features. They are influenced by the marine climate year-round, resulting in high air humidity, high salinity, consistently high temperatures, and significant temperature variations. These highly corrosive environments pose a significant challenge to buildings, transportation infrastructure, and industrial equipment, necessitating specific anti-corrosion measures such as the use of corrosion-resistant materials and regular application of anti-corrosion coatings to extend the service life of these facilities.
Temperate and tropical regions: The enclosure is insulated; the door and window structure is optimized for effective indoor ventilation; the enclosure features enlarged rainwater pipes; in cases of heavy or frequent rainfall, a double-pitched roof is added, and centralized drainage is replaced with roof drainage. Highly corrosive coastal areas: galvanizing and painting; bolt durability treatment.

Tests showed that the roof did not leak when the drainage intensity was 16 mm/min, meeting the drainage requirements under extreme rainstorm conditions.
| Time/Category | 24h | 12h | 1h | 5min |
| Light rain | 10mm | ≤5mm | ≤2.5mm | |
| Moderate rain | 10-25mm | 5-10mm | 2.5-8mm | |
| Heavy rain | 25-50mm | 10-30mm | 8-16mm | |
| Torrential rain | 50-100mm | 30-70mm | ≥16mm | |
| Heavy rain | 100-250mm | 70-140mm | ||
| Extreme rainstorm | >250mm | ≥140mm | 70mm | 10mm |

Floor substrate: Cement particleboard, Class A non-combustible; Interior ceiling: Metal panel, Class A non-combustible.

The structure is made of hot-dip galvanized material; the surface of the structure is then painted, providing double protection against rust.


Frame: Filled with 100mm glass fiber wool rolls
① The enclosure must be insulated; the door and window structure should be optimized for effective indoor ventilation.
② The enclosure should have enlarged rainwater pipes.
③ For areas with heavy or frequent rainfall, a double-pitched roof should be added, and centralized drainage should be replaced with roof drainage.
④ Special requirements for doors and windows: double-glazed tempered pressure-bearing glass with capillary tubes, sealed on-site; sealing strips should be installed around the perimeter to ensure airtightness.
⑤ Galvanized and painted finish.
⑥ Durable bolt treatment.

Optimized for Indonesia's high temperature and humidity environment, the underlying steel structure effectively prevents moisture.
From customized design and manufacturing to construction and delivery, the entire process was completed in one go, and the 17,300㎡ high-standard dormitory was successfully completed.

Employee Dormitory

Office Area

Restroom

Cafeteria Area

Fitness and Entertainment Area

Sri Lanka
The project is located in Sri Lanka, an area with high humidity and is influenced by monsoons year-round. The southwest monsoon brings heavy rainfall, especially in the southern and western regions, where annual precipitation can reach over 2500 mm. The wind load is 0.5 KN/㎡, and strong winds may occur during the storm season. The seismic intensity is between 6 and 7 degrees, and the minimum temperature is approximately 20°C.
Chengdong completed a 380,000-square-meter military camp project in Sri Lanka within 5 months. Special project requirements: high airtightness.
Based on your needs, Chengdong's 100+ internationally standardized engineers will create a first-class solution for you.
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