Paint on the Greenhouse Walls

[Davey]

I am going to build my first greenhouse soon. It is going to be completely from scratch. I am building it just to give my plants more sun and warmth for the winter. I have them in the house, but there is not enough light in this house for the number of plants that I have (more than 60) inside.

There are leftover sheets of plastic that was used to protect the floor from paint droppings when I was painting the inside walls of my house. I am considering using these sheets of plastic to cover the frame for my greenhouse.

Will it be dangerous for my orchids to use the paint-covered sheets of plastic, mentioned above, to cover my greenhouse frame with?