Open SAP 2012

This is an open source implementation of the 2012 SAP worksheet for calculating energy performance and heating demand of buildings.

Early beta version, errors expected, help us with development here

Example data: The following example data is for a small single-story old welsh stone cottage.

1. Overall dwelling dimensions

Area (m2) Average storey height (m) Volume (m3)
Ground floor
First floor
Second floor
Third floor
Other floor 1
Other floor 2
Other floor 3
Total floor area TFA =
Dwelling volume =
Living Area


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