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Renovating a pre-1980s weatherboard home: what about condensation?

conference contribution
posted on 2023-05-23, 12:55 authored by Mark DewsburyMark Dewsbury, Foo, Y, Law, T
A significant portion of Australia’s housing stock comprises weatherboard clad lightweight framed buildings, which have nil or limited envelope insulation. With the reported appearance of condensation and mould in new and old housing, this project sought to explore the condensation risk that may arise from retrofitting insulation into existing uninsulated housing. A typical house from Victoria was selected and many variations of floor, wall and ceiling insulation, glazing and building sealing were explored. A cost benefit analysis was used to establish three built fabric typologies, namely; as-is, current code-compliant with some improved glazing, and better than code insulation and improved glazing. Each of these typologies was simulated using NatHERS software to produce calculated temperatures for each room. The simulation data were used to complete a software based condensation risk analyses. The simulations results show that some walls present no condensation risk, whilst others showed a significant risk.

History

Publication title

Australasian Building Simulation Conference 2017

Editors

P Bannister

Pagination

1-14

Department/School

School of Architecture and Design

Publisher

Australian Institute of Refrigeration Air Conditioning and Heating

Place of publication

Melbourne

Event title

Australasian Building Simulation Conference 2017

Event Venue

Melbourne

Date of Event (Start Date)

2017-11-15

Date of Event (End Date)

2017-11-16

Rights statement

Copyright unknown

Repository Status

  • Restricted

Socio-economic Objectives

Residential construction processes

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