Proposed STEM Development @ Prospect, TAS – JV3 Modelling


JV3 Alternative Solution

Our added value

We were engaged in the project to conduct a STEM development energy report and assess occupants’ thermal comfort for 2100m2 occupiable areas. Like all alteration and addition projects, with new works being undertaken for a major part of the building, some existing parts of the building envelope are not up for an upgrade due to its high cost. Therefore, Deemed to Satisfy (DTS) pathway for energy compliance is not applicable to these projects and instead, Performance Solutions like JV3 modelling had to be undertaken.

To compensate for the uninsulated parts of the building, we increased the added insulation to the walls and ceilings. We slightly increased the thermal performance of the windows but unlike Section J part 1.5 requirement for the glazing to be tinted, we kept them all clear. As for thermal comfort, 99.6% of all occupiable areas reached the acceptable criteria for thermal comfort, which is Predicted Mean Vote in the range of ±1.

Our choice of insulation for the development was not predetermined and the added insulation was proposed based on the sources of heat loss and how thermally and economically effective they were. Though the thermal performance of windows needs to be increased, we managed not to go beyond the Section J requirement, which was single-pane choice. Finally, our assumptions for modelling were approved by the client and the final energy report was conducted.

JV3 Performance Solution NCC BCA Facade Calculator Performance Requirement Section J Stem DTS for commercial building Energy Compliance
DTS for commercial building, BCA energy compliance Section J alteration and externsion addition development Energy report DTS JV3 assessment alternative solution