Mould by location
Where growth appears tells you more about the cause than what it looks like. Each part of a house fails in its own way — condensation on windows, ventilation in bathrooms, ground moisture in crawl spaces.
Bathroom or shower
4 likely causes · 1 not mould
Basement or cellar
7 likely causes · 1 not mould
Kitchen
4 likely causes · 1 not mould
Window sill or frame
4 likely causes · 1 not mould
Wall or ceiling
8 likely causes · 2 not mould
Attic or roof space
4 likely causes
Air conditioning or ducts
4 likely causes · 1 not mould
On food
3 likely causes
Crawl space
4 likely causes · 1 not mould
Plant pot or soil
1 likely cause