Our investigations into origami folding led us to research alternatives to paper for use in the shelter. One idea was to use building paper as it could be folded and easily manipulated while being more weather proof and sturdier than standard paper.
Testing a splash of water on a piece of the bituminous black paper was an interesting exercise, within the space of half an hour, the amount of water had noticeably decreased without soaking through to the other side of the paper.
We are now interested to see how much water the building paper might be able to withstand but it is a successful result for an initial test. We are also confident in the material due to its use in construction where the paper is used as a moisture barrier in wall cavities and even as temporary protection against the weather before cladding walls.