Improving thermal comfort of residential building based on Recycling materials in arid and hot regions. Case studies of South of Algeria

the building envelope can reduce heating and cooling consumption, if it is well thermally insulated from the outside. To do this, it is necessary to use eco-friendly materials, such as recycled materials, which could control the environmental impact. The objective of this work is not only to design sustainable designs for hot and arid climates, but also to have new thermal insulation systems based on recycled materials and fibers. In this regard, the systems studied were fixed to a simple concrete block wall, under cladding (dry process). The results showed the important role of insulation with recycled materials such as wood fiber from the outside. These results make it possible to evaluate the potential impact of ETIs based on recycled and natural materials in extreme conditions, highlighting the interest in maintaining summer comfort. It�s concluded that the use of recycled material can be enable to improving consumption energy. Also, the technical-economic analysis can be revealed, the technical feasibility of the systems studied and the economic impact of natural and recycled insulating materials compared to conventional polystyrene insulation.