Thermo insulation of walls with use of foil to decrease burden on firewood use
Type: Technologies
Creation: 2018-03-25 09:58 Updated: 2019-08-06 09:16
Compilers: Askarsho Zevarshoev
Reviewers: Yacime Khadraoui, Maximilian Knoll, Alexandra Gavilano
Country/ region/ locations where the Technology has been applied and which are covered by this assessment
- Country: Tajikistan
- Region/ State/ Province: GBAO
- Further specification of location (e.g. municipality, town, etc.), if relevant: Khorog city
- Map: View Map
Description of the SLM Technology
Short description of the Technology
This technology is designed for the high altitude mountains areas, where biomass and growing trees are limited, first because of the harsh climatic conditions and secondly because of the limited arable lands for growing biomass and forests. Thermo insulation is applied in order to keep warmth inside and save using wood and biomass.
Detailed description of the Technology
The technology is applied in the mountainous rural areas of Tajikistan, in Rasht, Khatlon and GBAO. In this mountain regions wood and biomass are usually limited because of the harsh climate, risky agricultural zone and limited arable land. In the first decade of the transition period after the collapse of the Soviet Union problems with electricity and therfore the demand for fuel and wood increased. This caused a lot of forest degradation, because people were cutting trees from government owned and community areas for their fuel needs and used animal manure for heating their houses and cooking food. The technology is specifically designed to use low cost materials so that rural households can afford it. The technology consists of material like foil and wood to build frames for some layers to keep in the heat. Depending on the altitude, which is linked to the climate condition, the number of layers is increased where the climate is cold. The layer in between contains air, which prevents outside and inside air to move out/in. The technology was intended for saving up to 30% fuel. The technology includes support of entrepreneurs to make foil available in the market and provides training for local masters and labourers in designing and constructing of the technology. The main benefit is to contribute to biomass savings and forest preservation through reduced use of wood for heating and cooking. Land users are in favour because through this technology they are using less wood and save forest. They also burn less manure and can use it as fertilizers for their land. The technology brings comfort for longer periods of time by keeping heat inside the room. In addition it contribute also to hygine and sanitation, as less fire making prevents smoke emission and therefore keeps the rooms clean. On first sight the technology seems expensive, becasue of the material costs but in the long run when the cost effectiveness is explained land users accepted it.
Photos of the Technology
- 📍 GBAO
- 🗓 2011-10-05
- 📷 Zevarshoev Askarsho
- 📍 GBAO, Tajikistan
- 📷 Khujamyor Khumorikov