, e r u c t e t i h c r a e t a r i p o r p s - PowerPoint PPT Presentation

, e r u c t e t i h c r a e t a r i p o r p s p a a o r n f A e , l b s i s o p s a n o o e . s l b s s i a s o p s a e l p o e p y n a m t o s m n i s a a , c r i A f n a a r h o a t S l e - g u b g s u t r n s I e h t s , n o g i e r s d g e r i n - a u m i l p e g s n s i u o h n t e c s e u d o n c i i v i a b t a o o n t i s e i l i a m l a n f o o f t i i a s c o n o i s s i l l A m e T h y . r t a e s v e o s p o o f p o e p r c l i r N ) c V A ( e n n e b i u s N h i t e r û t o o y f V d e m e r e : v s s i l e n p e c i h n e r i p r p m e e c o h r t n o d e s a b , m e b l o r p e t k r a M A + l i l k S A + f o o R A s m a e t a l c o s l t o r p p u s d - n e a g s a r n l a i a r n t o N n V o A i u t o l s i s e h h e t t t f o o m e o p l r o p e o p t e h t t , u l e , s l e a b r d a r s o A f f . a e o a l t c s s e s c c a n a t i g a g , n n s i a u c o e l h h t a n S c e e d n d a e , b l a r n e i a i h t t s g u n s v i o r m p f i o m e y i t t i a l e u m q a r s e i h h e t t s , n o t i d i n o c c m i o . n n t c o e e m n o r v i n e r e i h t d n a e , f l i

Our Pr Our Prop oposa osal � The The P Proble blem � A So Solution � 1 ¡ 2 ¡ 3 ¡ According to the UN and WRI (World Resources Institute), over 50% of families in the Sahel lack access to decent housing . In sub-Saharan Africa, bush timber has traditionally been used for roofing and for load-bearing supports. However, climate change, deforestation, and increasing population growth mean that traditional building techniques are no longer feasible. Therefore rural families have to dip into their meager food, health, and education budgets to buy imported and expensive corrugated iron sheets and sawn timber for In the arid regions of roof-building. Such tin roofs have many disadvantages, especially the poor thermal and sound insulation, making houses too hot in the day, often too cold at night, and Africa, trees are vanishing extremely noisy during the short but intensive rainy season. They can easily be damaged by wind and rain, last little more than ten years, and their very fragility is a source of danger. They have to be paid for in cash, which is often a problem for the many families who live outside the cash economy. Families are locked into a vicious circle of poverty and squalor, with no durable solution to the problem of decent housing; this costs local economies several El ¡Alwar ¡ billions of CFA Francs every year. In order to help solve this problem, we need a global solution that integrates: Traditional timber roofs are  a construction technique for affordable and appropriate roofs  built professionally by masons with the necessary skills no longer feasible  as part of emerging and actively promoted markets in sustainable housing. A SKILL A MARKET A ROOF Tin roofing is not a solution

The P The Proble blem � Our Prop Our Pr oposa osal � A So Solution � 1 ¡ 2 ¡ 3 ¡ A ROOF “ A construction technique for affordable and appropriate roofs …. The Nubian Vault (NV): a standardized version of an ancient African technique of earth architecture Social Responsibility  More solid (thick walls, weather-resistant roofs) A SKILL  More comfortable (less noise, good thermal isolation)  Can incorporate the traditional flat roof terrace  Reinforces local and family networks  Conserves traditional Sahelian building practices. Economic viability  Less expensive than sheet metal and cement: affordable by local clients  Simple and standardized: rapid training of local A MARKET apprentices and the creation of a market  Based on local labor force and materials: reinforcing local economic circuits. Environmental sustainability  No wood: 1 NV* saves 4 trees.  No sheet metal, cement or steel: 1 NV saves 2 tons of CO2-equivalent. IMPACTS *A standard NV equates to ~ 25 M2 of floor space

The P The Proble blem � A So Solution � Our Pr Our Prop oposa osal � 1 ¡ 2 ¡ 3 ¡ A ROOF A construction technique for appropriate roofs … built professionally by skilled masons …. Le concept VN (Voûte Nubienne) The NV masons There are five, progressive, levels of skilled NV masons  L1: a novice apprentice The NV concept  L2: an advanced apprentice  L3: a mason, able to build a vault  L4: a foreman, able to supervise a construction site  L5: a mason-entrepreneur, able to negotiate with clients and supervise A SKILL several construction sites. The NV masons are local, currently from Burkina Faso, Senegal or Mali, and most of them are farmers. In their role as NV masons, they:  are trained on site as apprentices by other masons, and are thus introduced to market realities  promote the VN technique and sell their know-how locally  supervise the NV construction sites  share their experiences with other masons and transfer their know-how to trainers A MARKET  are paid 100% by their clients, in cash, trade or barter  can not only build simple houses, but also, in partnership with local organizations, public buildings (schools, community centers, churches, mosques, dispensaries…) using the NV technique. The masons are not employed by AVN; however, the majority of trained NV masons collaborate with La Voûte Nubienne, exchanging ideas and information about the market, clients’ needs, and potential apprentices, both informally, and at formal congresses arranged by AVN each year. Some of them go even further, getting involved as extension agents IMPACTS promoting the VN technique, for which AVN then provides compensation.

The P The Proble blem � A So Solution � Our Pr Our Prop oposa osal � 2 ¡ 3 ¡ 1 ¡ A construction technique for appropriate roofs, built professionally by skilled masons …. A ROOF Le concept VN (Voûte Nubienne) as part of emerging and actively promoted markets in sustainable housing. Le concept VN (Voûte Nubienne) "Pump-Priming" the market AVN’s mission is to promote the Nubian Vault as soon as possible, for as many beneficiaries as possible. To do this, the The NV concept Association trains and guides extension agents to “pump-prime” local markets, starting from a base of pilot villages, evolving into pilot zones, and then into entire regions. 1 In a pilot village (a main village and its direct satellites), I identify and prepare a Adjara is an AVN local ‘champion’ convinced of the NV technique and influential locally. A SKILL extension agent, she 2 I accompany my ‘champion’ to meetings to explain the NV technique and attract explains her job : potential clients and apprentices, thus opening the door to a NV market. 3 I send a NV mason (L5) to start the local market; paid by his clients, the mason builds the first NV houses and trains the first local apprentices on-site. I accompany him, along with my ‘champion’ so that the market develops better. 4 Progressively, over 4 to 5 years, the program of awareness raising, construction, and training reaches a self-sustaining level, with the emergence of an autonomous The NV builders local market; I can then withdraw, leaving the place to locally trained NV masons. 5 In an area of 40 km around this pilot village, other villages will experience the same process, thus promoting the emergence of a larger pilot zone A MARKET 6 At the same time, other NV extension agents are developing nearby pilot zones, extending the program to a regional footing. Using this strategy, my colleagues and I promote the NV solution on a large scale, moving on to new areas as soon as local independent markets have emerged. Training to promote the NV deployment strategy IMPACTS In order to promote this market growth strategy, AVN invests in the training, . support, and insertion of new extension agents: - either internally , through the duplication of AVN teams. - or through franchise arrangements , transferring the methodology to other partner organizations.

The The P Proble blem � Our Pr Our Prop oposa osal � A So Solution � 1 ¡ 2 ¡ 3 ¡ A ROOF Le concept VN (Voûte Nubienne) This AVN solution (a Roof + a Skill + a Market) generates increasing, sustainable, rapid, and large-scale impacts The NV concept Cumulative impacts by 2011: A SKILL  AVN is active in four countries: Burkina Faso, Mali, Senegal, Zambia  10,000 direct beneficiaries of NV buildings The NV builders  176 trained NV masons  Over 1,000 Nubian Vaults built  Carbon savings of ~ 2,000 tons of A MARKET CO2- equivalent  44 volunteers and employees  300 " social investors".  A 40% annual average growth in the number of Nubian Vaults built  Over 500,000 € of local economic impacts IMPACTS  An annual estimated budget (2010/11) of 350,000 € .