Latest Version: Tas 9.1.4.2
The latest version is required for all UK & ROI Building Regulations projects. Click here to go to the download page.
Recent News
FAQ section updated
13 July 2010
The Frequently Asked Questions section has been updated and now includes 100 answers to comon support queries.
Read the latest FAQs
Tas 9.1.4.1 Released
21 June 2010
The latest version of EDSL Tas is now available for download.
See what's new in Tas 9.1.4.1
Tas Academy Announced
27 January 2010
EDSL is hosting a series of Tas academies to promote the existing and upcoming features of Tas.
Click for details or to book
Passivent Airscoop Builder
03 December 2009
Passivent Airscoop Builder: a new utility now available for EDSL Tas.
Click for more information
A complete solution for the thermal simulation of new or existing buildings
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.
Become a Low Carbon Consultant through our training courses.
Low Carbon Consultancy
Want to be an Energy Performance Assessor? Come to us for your training.
Energy Performance Assessor
Find information on the dates of our upcoming courses.
Course Dates
Call, fax or use our online email form for more information.
Contact Us
Our consultancy service can tailor to your needs.
Find out more
There is no limit to the size of building our consultants can model.
Large Projects
We perform overheating analysis of schools in compliance with Building Bulletin 101.
Schools
Trust our consultants with your EPC and Part L2 projects.
EPC
Part L2
Tas's intuitive interface gives you the freedom to create your models with pinpoint
precision.
Fast, Accurate and Robust
Tas is the first DSM to be approved for Part L2 and EPC. Tas can be used to assess
building levels 3, 4 and 5.
Validation
Try Tas for free and experience our software for yourself.
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