You do not need to be humane, but maleficent in the extreme. They are
vermin and will do untold damage in your roof. They may look like
charming rascals, but they are more like monsters.

Put some poison in your roof space. That gets rid of them. You do not
ned the female giving birth up there, because the whole family will
keep coming back and they are extremely persistent. You need to kill
them all quickly. If you do not get rid of them, they will eat through
electric wiring. It all gets very expensive.

John