This winterisation strategy paper provides technical guidelines for the upgrading of non-winterized tents and for the use of shelter kits to reach minimal winterisation standards. It is the output of interagency discussions including field and headquarters staff from many organisations including; CARE, CRS, Feed the Hungry, FRC, GOAL, ICRC, IFRC, IOM, MSF, OXFAM, Save the Children UK, Sungi Development Foundation, Tearfund, UNHABITAT, UNHCR, UNJLC, UNDP and WWF. It complements rather than replaces existing shelter strategies which aim to provide materials to help people make transitional shelters on their own land or to make repairs to existing buildings. This is produced by the Emergency Sehlter Cluster Technical Unit in direct response to Pakistan earthquake.