I have done some research on cardboard. This advice comes from your part of the world, Bagman. Ought to be reliable. Go to the 27m40s mark or click the link below.
Presenter: Still if you lost your house, you can always apply those grand design style tips to your new abode.
Narrator: Simon and Juniper's new home consists of an audacious cardboard hexahedron situated in traditional alleyway surroundings. A flap style entrance leads to a cosy interior combination of a living room and a sleeping area insulated with reclaimed newsprint flooring. Best of all, the entire structure is recycleable and can be used to bury their bodies should their life come to an abrupt end during a cold snap.