Paper / Cardboard shelters

Tried and failed to take off as a post disaster shelter in Rwanda (UNHCR 1999), Turkey (2000), Bhuj, India (2001) and Haiti (2010) - largely due to the fact that cardboard needed to be brought in to the affected areas. See http://www.shigerubanarchitects.com for more.

Concrete canvas - not for airfreight

These shelters have had a lot of media coverage - but the weight (2MT) and water requirements (nearly 1MT) of these 25m2 structures makes them impractical for most humanitarian operations. Maybe ok for militaries who have much higher transportation budgets.