Mould growing on bedroom ceiling

[ainell29]

There is a mould growing on the bedroom ceiling and the mould patch is located on the corner where exterior wall and interior wall meets. What could be the problem with that?

[no1son]

the favourite for this is roof problems or gutters /rainwater pipes.I generally steady the ladder for my dear mama when she checks ours every year.Get a professional in unless you are confident.

[TheDoctor5]

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