Prefab Passivhaus Opportunities for the nonresidential

Transcription

1 Prefab Passivhaus Opportunities for the nonresidential sector Warren McGregor - PrefabAUS 2016 South Pacific Passive House Conference Melbourne February

2 Session Overview PrefabAUS Prefabrication and off-site construction Advantages and take-up Example projects Prefab and Passivhaus Passivhaus opportunities (non-residential)

3 PrefabAUS Australia s peak body for prefabrication and off-site construction Established in 2013 Not for profit industry association Diverse and fast growing membership

4 Context

5 Prefabrication & Off-site Construction Definition: Any part of a building that has been fabricated at a place other than its final location Other terms in use: Modular, Unitised, Volumetric Kit of parts, Flat pack System-built Modern methods of construction

6 The Prefabrication Continuum

7 Floor cassettes / Bathroom pods

8 Composite & hybrid systems

9 Advantages of prefabrication The main benefits include: shorter program times increased construction precision reduced defects/rectification works reduced site disruption factory not affected by adverse weather reduced materials wastage improved worker safety

10 Where has the take-up been? Prefabricated project examples: Transport suburban train stations Hospitality hotels, restaurants Healthcare medical centres, hospitals Education schools, universities, child care centres Residential - houses, townhouses, social housing, apartments, display suites

11 Project examples - transport

12 Project examples - education

13 Project examples - healthcare

14 Project examples - hospitality

15 Project examples - residential

16 One9 Moonee Ponds Hickory project Base build with apartments modules Activity centre

17 The Green, Parkville Australand 5 story 57 apartments timber framed 25% reduced cost

18 Broad Group, China 57 floors in19 days Rapid construction methodology with prefabricated parts and meticulous planning

19 323 La Trobe St, Melbourne Underway, will be 44 levels of apartments "integrating elements such as subassembled bathrooms, precast concrete panels and pre-attached building facades"

20 Main drivers Enabling technologies BIM, simulation tools, collaboration platforms, DfMA, lean construction, sensors and monitoring systems Design flexibility Reached a tipping point base of completed projects and broader knowledge Large builders are adopting Government interest UK, Singapore, Australia

21 Off-site construction summary construction is now a global industry is a small but growing part of Australia's construction industry about 3% now represents a spectrum of solutions is increasingly being integrated into mainstream construction new materials, including advanced timber (CLT, Glulam) will become more common

22 Prefab and Passivhaus Both Prefab and Passivhaus: are new, different and confront the inherent challenges of innovation must overcome entrenched industry practices and attitudes offer significant benefits over traditional construction need healthy mix of push and pull forces at play to achieve increased adoption

23 What changes & How to achieve the benefits Successful Passivhaus prefabrication requires: it to be envisaged from the outset explicit recognition of the differences, including early design detail lock-down, procurement model and contract engaging an experienced consultant team and head contractor overcoming project feasibility funding challenges

24 Passivhaus opportunities (non residential) Higher energy costs and higher awareness of carbon emissions in Australia Herz & Lang cite high comfort and economic outcomes for their client and hotel, museum, prison and courts projects Hospitals, hotels, retirement, aged care, municipal/government buildings, schools, retail, offices, student accommodation Recognise the asymmetry of the costs imposts and capture of benefits

25 Wrap up Passivhaus and Prefab confront similar obstacles in achieving widespread take up Both would benefit greatly from a more robust business case methodology Prefabrication is ideally suited to delivering Passivhaus projects There has never been a better time to push the Passivhaus and Prefab agendas

26 Thank you