We are renovating our old wooden veranda, which will be fitted with old windows and thereby become glazed. When we now build the roof, we will add insulation to prevent it from getting too cold out there (it's a bit like an extra porch). It will have single-pane windows and probably a rather untight construction, and the floor is an uninsulated concrete foundation. In other words, quite cold.
Should we install plastic in the veranda's ceiling to reduce condensation in the insulation due to humid indoor air that escapes every time the door is opened?