Considering the published projections regarding climate changes, namely in Europe, should we proceed designing future buildings (that wll last for the next 100 years) using TMY (typical meteoological year) files?
We should use future weather files, modified to considere global warming. Some researchers developed tecniques to obtain these modified data. You can see for example the CISBE metodology that can be used to obtain data according to different IPCC proyection (A1F, A2, B1, B2) for 2020, 2050 and 2080. Now, the question is: which file has to be used? The warmest scenario? All of them? Moreover, how to interpretate the results? I think that we should always do, evaluating a building performance, a robustness or sensitivity analysis, in order to establish its resilience to unpredictable situations. What do you think?
For future buildings (100 years) its better to use future weather files. To measure performance of an old building or a very new building I think its fine to use TMY files, and let the thermal simulation tools to calculate everything with some parameters (Temperature, Rainfall, Wind Speed and radiation etc.)
Considering climate change, TMY shall be combined with info coming from weather files adapted to extreme weather temperatures to subsequently morphing the file to future weather. Instances of extreme weather files are DSY, pDSY, DRY, UMY, XMY, SRY, HSY,...
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