Would people grow vegetables on roofs and collect rain for water?

Rainwater harvesting is also used to collect rain from rooftops.

Rusted barrels collect rain from zinc roofs, the only source of fresh water.

Those he had set out to collect rain were heavy, but there were smaller ones, in the larder.

There were still a few barrels of water, but if he collected rain, he could even do without them.

They usually have nearby a well, natural source, stream, or pool that collects rain.

The water we gathered using some tents to collect rain into the pots.

Rainwater tanks are devices for collecting and maintaining harvested rain.

Set up a simple 'weather station' by collecting rain in a container.

"I have collected rain in a pot to wash the toilet," she said.