envest 2

envest 2

Envest 2 is a software tool that simplifies the otherwise very complex process of designing buildings with low environmental impact and whole life costs. Envest 2 allows both environmental and financial tradeoffs to be made explicit in the design process, allowing the client to optimise the concept of best value according to their own priorities.

Designers input their building designs (height, number of storeys, window area, etc) and choices of elements (external wall, roof covering, etc). Envest 2 identifies those elements with the most influence on the building's environmental impact and whole life cost and shows the effects of selecting different materials. It also predicts the environmental and cost impact of various strategies for heating, cooling and operating a building.

Having made comparisons between different buildings and specifications, designers can graphically demonstrate the environmental and financial credentials of different designs to clients. Envest 2 produces detailed and summary information that is readily transferred to the users own template to create a bespoke environmental report for a building.

Environmental data may be presented as a range of 12 impacts, from climate change to toxicity, as well as a single Ecopoint score, for ease of communication, especially in comparison with costs.
Costs are measured in £Sterling according to Net Present Value, discounted at 2002 Treasury rates or a discounted rate set by the user.

Envest 2 is web based, allowing large design companies to store and share information in a controlled way, enabling in-house benchmarking and design comparison.
Two versions of the tools are available:

Envest 2 estimator uses default environmental and financial data about the whole life performance of the building. It is intended for use by design teams who are particularly interested in the environmental performance of a building but also find it useful to provide an estimate of relative whole life costs for different designs

Envest 2 calculator provides default environmental data but allows the user to enter their own capital and lifetime financial cost information. This provides a powerful tool for design teams for whom the whole life costs are of prime importance, who have their own specific data available and who also find it useful to have access to the environmental performance of the design.

The unit cost rates used within this model have been supplied by BAQUS Construction Consultancy (Chichester).

If you are using the Envest Demo, go to the Login to view the demonstration of Envest 2 capabilities. The Help button will tell you how to use the demonstration.

You can now purchase Envest 2 on line - click on Register for more details.

For more information: contact us on +44 (0)1923 664300, E-mail envest@bre.co.uk.