So we are thinking about turning our access to the house into a porch. This would hopefully help our downstairs stay lots warmer as currently in winter the hall is very cold. It would also give us a little more storage for shoes etc. We already have the foundation in place because there is a porch area there it's just open to the elements. So the work would involve installation of a door and window. Do you end up with two external doors? Or should the first door be an external door and the second a normal internal door? What do you do about the flooring? It's block paving from our current front door. So no insulation or damp proofing or anything there. Anyone any ideas as to what you normally do?