Hi All,
I live in Melbourne South East and my house was build in 1986, two storey. Recently I noticed two hairline cracks appeared on the kitchen/meal area ceiling. Next to them, there are two seperate noticeable curves, each is approximately 40cm long, It looks that the ceiling is a bit sagging on the curves. When I push upward on the curve, the curve area is still solid, not spongy. I am a bit worried if there is issue with the ceiling structure, or just the joist/timber possibly comes off due to foundation movement, moisture or temperature etc.
Is it better to have a structural engineer to inspect it or just let plastering contractor to repair it? Is every licensed plasterer able to fix such possible sagging issue?
any suggestion would be much appreciated.