DesignBuilder v5 adds a substantial set of new features and improvements compared with v4 including significant productivity improvements for LEED and ASHRAE 90.1 PRM work and a new scripting toolset to allow EnergyPlus simulations to be customised.
Other highlights include Combined Heat and Moisture Simulation, new cost modelling options and a fluid to fluid heat exchanger component which opens the door to modelling a wide range of new HVAC systems.
To find out about upgrading to v5 see our Upgrade page.
The list below summarises the main improvements.
3-D Modeller
gbXML export provides full 2 way interoperability with other modelling tools (v5.1).
Improved gbXML BIM import now fully supports courtyard voids.