I stay in a house in which I rent. The house has a leak I the roof. I was told that if it leaks My question is how dangerous ismold/mould.?

Slumlord

Not very dangerous if the leak is fixed in a timely fashion. Its when the problem goes untreated for 6 months plus that you may have problems.

real estate guy

water damage, untreated = mold. The roof needs to be repairs ASAP! and any water damage from the leak needs to be cleaned and repaired ASAP.

Pascal the Gambler

Can be very dangerous, or not at all.

Slabberdasken

Mold can be very dangerous, even deadly if you are allergic to mold.

Pearl

if youre allergic it can be bad, just get sonneone to fix it