This document can also be found on the official website of the World Wide Fund for Nature (WWF) at: https://wwf.panda.org/. This WWF paper provides guidance for engineers, architeects, project managers and technicians working in disaster reconstruction projects to select, source and use building materials in an environmentally responsible way. It draws on the Hariyo Ban Program in Nepal as a case study for sustainable construction material sourcing and use. This resource is part of the collection "Environmental considerations in shelter programming". Collections are monitored daily and new content is added.