Environmental Design Solutions Limited (EDSL) was formed in 1989 to commercially develop Tas Software. EDSL sells Tas software and consultancy services using Tas. EDSL believe that the mixing of development, consultancy and software support leads to a focused software product, with quality support available to end users.

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Note: The Theory Manual is created in the Compiled HTML (CHM) format, which may be restricted by your operating system. If you have problems viewing the manual, select 'Unblock' from the file properties.



Additional downloadable guides to performing specific tasks within Tas.

Breathing Buildings Modelling Guides

External Links

Useful documentation not written by EDSL. These include links to regulatory documents for UK Part L2 and EPC assessments.