(#8415) How to conduct insolation analysis.


In our project we have multiple buildings in an "E" shaped plan. During insolation analysis (insolation X window area), should we only consider exposed window areas excluding center wing or do we need to consider all 3 wings.

Please elaborate the calculation methodology.


For this analysis all fenestrations of the building envelope are to be considered.

Design case will be compared with a base case. For the design case consider all windows in  respective orientations and multiply window areas with insolatation number of the respective orientation.

For base case you need to divide your total window area equally in all orientations and multiply window area with the insolatation number of respective orientation.

Insolatation numbers can be referred from SP-41.

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