compost on our roof 5years... cockroaches suddenly discovered our living area (1 floor below). Help!

Question #2

I live in the tropics in the city, top floor of a 4-story building, and we've turned our roof into a partially-covered garden.
We have a BIG compost bin on our garden roof. Our garden material and household materials go there. It's been there 5 years in happy balance.

Then... a couple months ago our home (1 floor below) got a big influx of big fast well-armored cockroaches. The compost bin is well-populated with this same kind. I welcome them in the compost, but not in the house.

I understand the concept of not giving them food or water and they'll go away.
But ... that seems not to be enough, at least not YET enough.

So ...insights? thoughts? Those guys are sooo repulsive. And now I find them as my roommates!

thanks!

If they live in compost bin, I would remove it completely and compost directly in the garden.