In Terai plains of Nepal, vernacular mud houses face a significant challenge: they disintegrate during flooding. CRS Nepal together with Caritas Nepal and NHSRP are developing innovative solutions to protect these houses and improve resilience of local communities. Project focuses on the application of flood resilient techniques such as raised plinths and lime-stabilized soil combined with earthquake resilient technologies to enhance durability and resilience of these houses.

Research was  carried out using multiple trial mix samples mimicking what happens to mud houses during floods. By using lime-stabilized soil together with pozzolans such as rice husk ash, sand, and straw, we found that the mud plasters and flooring can remain intact in water. This innovation prevents soil dissolution and provides a solution for flood-prone areas. Features integrated in Flood-Resilient Demo-Community Houses: Raised plinth level; Lime-stabilized soil technology; Improved connection of wood / bamboo, metal, and concrete; Earthquake-resilient technology; Use of local natural building materials

These vernacular houses are also better for thermal comfort i.e.. cooler in summer and warmer in winter.