Armatherm™ Thermal Modelling

Armatherm™ Thermal Modelling Thermal bridges create multi-directional heat fluxes in addition to the heat flow that is ordinarily transferred via the building envelope due to air leakage, for example. Because of these three-dimensional heat flow channels, typical area-weighted averaging is difficult to utilise to accurately calculate the impacts of a thermal bridge. Thermal modelling is the most precise way to quantify the heat loss effect of thermal bridging on predicted building envelope performance. Furthermore, as a result, whole-building energy modelling, which is utilised for performance-based compliance to earn a LEED EA credit, becomes more accurate. Morrison Hershfield, a consulting business, demonstrated in ASHRAE RP-1365 that utilising 3D heat transfer modelling, the thermal performance of building envelope details may be more accurately specified than using linear and point transmittance methodology. The difference between an assembly with and without the thermal bridging detail is used to model the increased heat flow induced by a thermal bridge. The modelling can then add thermal break solutions to improve the U value and reduce heat flow after the effective U value of the assembly is achieved (which includes the impacts of thermal bridging). It's also possible to assess and improve heat flow through transparent field assemblies. Building interface details' linear and point transmittances (heat flow), as well as clear field transmittances, can be used with any building area to more correctly determine the overall heat flow or U value used in whole building energy modelling tools. For your next project, we've created an extensive thermal modelling library of interface details and wall assemblies for you to use. To reduce heat flow and energy consumption, each was tested for thermal performance utilising Armatherm structural thermal break solutions. For more information on Armatherm™ Thermal Modelling, please visit our website alternatively call 01274 591115 and we will help with your enquiry