Hi. I'm moving and adding exhaust vents in my basement renovation. One for the dryer and one for the new bathroom fan. I know that the two cannot share a duct for safety reasons. Does this mean that I have to cut two holes in the outside of the house? I know that seems like a "duh" question, but I'm wondering if there is some way of having the two ducts both empty into the same final, outside opening. Or is that the same safety / code issue?

How do people normally do this?

Thanks.