HotBox 12,000 Interconnection Chamber for Hygrothermal Wall Testing
Introduction
HotBox 12,000 Interconnection Chamber for Hygrothermal Wall Testing
The HotBox 12,000 Interconnection Chamber was developed for a national civil engineering laboratory and independent certification body, recognized for its role in the assessment and validation of building solutions. The project addresses the need for advanced testing infrastructure capable of reproducing complex environmental conditions with a high level of accuracy and repeatability.
Designed specifically for hygrothermal testing of building walls, this interconnection chamber enables direct integration with full-scale wall assemblies. Its configuration supports long-duration tests under combined thermal, moisture and rainfall loads, contributing to robust performance evaluation and certification processes.
Overview
The HotBox chamber is used within certification and technical assessment protocols for construction systems, including façade walls and insulation solutions. Its primary purpose is to simulate real-life environmental exposure scenarios, ensuring that materials and systems are evaluated under demanding and representative conditions. Testing methodologies follow applicable European standards and technical criteria defined by the certification body. These protocols combine controlled cycles of temperature variation, relative humidity and rain, with the option to introduce artificial radiation to replicate solar exposure on façades.
–25 to +70°C
Supports assessment of wall behaviour under extreme climatic conditions.
12,000 litres
Allows realistic testing of large wall assemblies in a controlled environment.
Up to 1.5 l/m²·min
Delivers adjustable and repeatable precipitation exposure with water recirculation.
Results
The HotBox Interconnection Chamber enables the certification laboratory to perform precise and prolonged hygrothermal tests with high environmental stability. The side-opening design ensures secure installation of wall specimens while maintaining tightness and thermal continuity throughout testing cycles. This solution enhances the reliability of performance assessments, supporting certification decisions and contributing to improved durability, safety and energy performance of building systems tested under real-world conditions.
100%
Compliance. - Designed for certification-grade hygrothermal testing
4
environmental variables combined
12,000 L
usable volume
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