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 Interstitial Moisture

Numerical modelling

In roof spaces - air cavities and the building elements surrounding them - heat transfer, air movements and moisture transport are strongly linked and affect the formation and the removal of condensation.

We aim to build a comprehensive numerical model of the transport of heat, air and mass in roof spaces to interpret the data collected in the test building (see Roof Experiments) and to generalise this to a variety of roof designs and climatic zones.

Such a model would allow us to study the performance of different roof designs and ventilation strategies and would be a fundamental tool for generating verification methods and design guidelines.

Below is an early example of a model of thermal convection leading to mixing of air. 

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