Engineering Efficiency in Motion: Ventilation-Limited Metal Sunshade Panels for Temporary Wall Systems

Temporary wall systems—used in exhibition halls, modular offices, emergency shelters, or field laboratories—present a complex challenge for environmental design. Unlike permanent buildings, these structures rely on lightweight, rapidly deployable panels with limited ventilation. Without proper airflow control, heat and humidity can accumulate quickly, compromising interior comfort and material stability. Jintong’s ventilation-limited metal sunshade panels introduce a new generation of passive climate control, balancing air exchange, heat mitigation, and durability in portable architecture.

1. Understanding the Temporary Wall Challenge

Portable and demountable structures often sacrifice ventilation performance for structural simplicity. Because of their rapid assembly and thin wall profiles, such systems struggle with trapped heat and stagnant air. This issue intensifies in high solar exposure zones or densely packed event setups.

For example, a temporary exhibition facility in Dubai experienced interior wall temperatures exceeding 60°C under peak sunlight. With no integrated ventilation system, the thermal gradient across aluminum panels reached 18°C, causing condensation and paint delamination within three months. This kind of failure not only damages the temporary setup but also reduces reuse potential—a critical concern in modular architecture.

According to ASHRAE’s building operation guidelines, even short-term enclosures require minimum airflow continuity to maintain thermal balance. Yet traditional designs lack feasible passive mechanisms to achieve this without electrical systems.

2. Jintong’s Hybrid Passive Concept

Leveraging principles from NREL envelope studies and DOE’s building envelope efficiency research, Jintong developed a ventilation-limited metal sunshade system that manages airflow through micro-engineered perforations while minimizing heat absorption. The system features:

• Perforated aluminum sheets with variable open-area ratios (22–38%) optimized for different climate zones.

• Thermal baffle layers installed 20 mm behind the sunshade for low-resistance heat dissipation.

• Integrated air-regulation membranes that allow slow, laminar airflow to prevent stagnation without introducing dust.

Explore related configurations:Modular Wall Integration,Airflow Channel Optimization, andEvent Structure Case Study.

3. CFD Simulation and Airflow Behavior

Using Computational Fluid Dynamics (CFD), Jintong’s engineers analyzed heat flow across portable wall modules exposed to desert climates. Simulations showed that standard flat walls trapped air near the upper sections, forming a “dead heat zone” with 14°C higher average temperatures. When replaced with ventilation-limited panels, convection loops were established along vertical baffles, reducing wall surface heat by 42%.

Infrared data captured during field testing confirmed consistent temperature uniformity, with less than 3°C variance across surfaces—a significant improvement for modular designs where thin walls amplify external temperature fluctuations.

4. Case Study: Expo Field Pavilion, Qatar 2023

The system was first tested at a 2023 trade pavilion in Doha, Qatar. The structure used prefabricated aluminum-framed walls assembled in less than 72 hours. Each module integrated Jintong’s perforated sunshade layers with passive air restrictors, maintaining internal airflow at 0.4 m/s without electrical assistance. Over the six-month operation, the pavilion recorded a 15°C interior temperature reduction compared to control zones and 18% less humidity accumulation.

As noted by Green Building Solutions, modular walls utilizing passive venting can reduce cooling load by 25–30%, validating Jintong’s system as a practical approach for temporary climate control.

5. Structural and Material Benefits

All sunshade modules are fabricated from marine-grade aluminum (AA5052-H32), ensuring corrosion resistance and lightweight mobility. A matte nano-ceramic coating enhances UV resistance and prevents glare—critical in open field deployments. The system also complies with international fire safety codes for temporary event structures.

Assembly testing demonstrated that a 12 m × 4 m wall section could be installed in under 2 hours by a three-person crew. The modular nature allows repeated reuse without structural fatigue, providing up to 10 deployment cycles before replacement.

6. Global Validation and Broader Application

According to ArchDaily, hybrid passive sunshade and vent systems are now being adopted in temporary hospitals, construction field offices, and pop-up retail units. Their passive functionality enables rapid deployment without additional power infrastructure.

In collaboration with field partners, Jintong has implemented similar panels in disaster-relief camps across Indonesia and India. These structures, operating off-grid, maintained acceptable interior conditions for weeks, highlighting the viability of controlled-ventilation design in emergency-use architecture.

7. Actionable Insights

If you’re designing temporary structures that need sustainable, passive heat control—whether for exhibitions, relief zones, or construction field stations—Jintong’s ventilation-limited sunshade system provides an immediate and scalable solution. Upload your layout today to receive a free airflow simulation and panel configuration recommendation from our engineering team.

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