The program meets the constraints imposed by climate change in the housing sector, by encouraging the use of earth to cover constructions in arid areas. The Nubian Vault technique makes up for the increasing lack of timber resources (wood, straw, posts) and limits the use of imported materials, such as sheet metal, cement or wooden rafters.
The areas targeted by the program – Burkina Faso, Mali and Senegal – are at risk from drought, which causes a decline in crops and incomes for rural dwellers, as well as migratory flows towards urban centers. By mainly targeting a rural population with low incomes, NVA offers an alternative to the unique solution of corrugated iron roofs currently available and legal. It sensitizes these communities to a new form of quality housing with optimized thermal comfort by using available materials.
The program strengthens local entrepreneurship by supporting the development of the market in rural and semi-rural areas, by relying on franchised partners and a revitalization of cultural values of local self-help. Capacity building for local teams and the precision of the method of popularization should improve the dissemination of the NV technique in the countries of operation and beyond.
“What results have been achieved by the Nubian Vault program since it was set up in 2000?
The average growth in the number of constructions stands at approximately 30%. Over 2,000 Nubian Vaults have been built by a network of 270 masons in over 400 municipalities in Burkina Faso, Mali and Senegal, for some 14,000 beneficiaries.
This has, among other things, saved 4,000 tons of CO2 eq, 2,600 trees and generated a local economy of over EUR 1.4m.
The results are clear, and for the first time, all the aspects of the program seem mature, complete and functional:
- Demand currently higher than supply,
- A functional large-scale popularization methodology, described and mastered by NVA executives,
- A successful regional replication in 10 regions, including 5 in Burkina Faso, 3 in Mali, and 2 in Senegal,
- The start of replication in other West African countries (Benin, Ghana...)
- And, finally, the continued support of Foundations (Hermès, Ensemble, Accor, Nicolas Hulot...), but also, since 2012, the first major public partnerships (FFEM and AFD).
Yet the challenge remains considerable, as to turn around the problem of housing in Sahelian Africa, 5% of the population will need to be reached. And to achieve this, it is essential to rapidly increase the growth in production.”