Need to know what to do about a leaky flat roof???

This is what you need to do.Call the roofing company tomorrow,tell them it is a flat roof and will require hot tar and underlayment.And that your ceilings are being ruined by the amount of water leaking in.They can patch it or if you are financially able they can put on a new roof with a warranty.They have the equipment to heat the tar as it is needed.