Most animals are raised underground, most plants on the surface, under plastic roofs.

A greenhouse has a transparent glass or plastic roof and walls that let sunlight in.

A mass of red-hot metal pushes through the plastic roof and drops directly onto his face.

His scheme, top, would replace almost all the buildings with an exhibition plaza under a translucent plastic roof.

It usually has a glass or clear (transparent) plastic roof.

"You didn't do bad, considering," his wife said, finishing off the orange plastic roof.

Above her was a dark brown plastic roof.

Designed to sell at £227 the model was first launched with a large plastic roof vent which soon earned it the name of the bubble-top.

It has an opaque blue plastic roof and a zippered door.

Windows swept into the black plastic roof, a feature that remains in the production model.