It starts innocently enough — a hairline crack on the lounge room wall. But, before too long, that annoying little line creeps further down the wall and widens.
As a record-breaking drought continues to overwhelm large parts of Australia, more of these kinds of cracks are appearing in homes throughout the country.
"In extraordinary dry times like now, those cracks will widen," warned Professor Nasser Khalili, the head of geotechnical engineering at the University of New South Wales.
In the vast majority of cases, cracks in houses are caused when the soil underneath the house starts to dry and contract, causing the footing of the house to shift unevenly, which leads the walls to move and crack.
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