Evaluation of the performance of new recycled materials using thermal insulation in building walls

Subject Areas : Sustainable Architecture

aaram Mirmothari ¹ , Mahsa Rahnamaei Zekavat ² , seyedeh mamak salavatian ³

1 - PhD student,Department of Architecture, Rasht branch, Islamic Azad University, Rasht, Iran
2 - Department of Architecture, Rasht branch, Islamic Azad University, Rasht, Iran
3 - Department of Architecture, Rasht branch, Islamic Azad University, Rasht, Iran

Received: 2024-05-20 Accepted : 2024-08-20 Published : 2024-09-11

Keywords: Recycled building materials, thermal insulation, building shell, environmental effects,

Abstract :

Continuous increase in energy consumption and environmental pollution is one of the main challenges of the 21st century. One of the approaches to overcome these challenges is to emphasize on the use of recycled materials and environmental-friendly methods in production. Use of new recycled materials as thermal insulation in buildings would play a vital role in reducing environmental pollution and is also effective in saving energy consumption by minimizing heat loss during heating and cooling period of the building. For this purpose, this study evaluates performance of new recycled materials in building envelopes with the use of thermal insulation and examines the effect of the physical and thermal characteristics of these insulating materials on the thermal performance of the exterior walls. In this regard, recycled materials usable in various parts of a building as well as the properties of recycled materials used as thermal insulation in the building wall were investigated in this research. The results show that although the current market is completely dominated by common synthetic insulation materials, it is possible to replace these common materials with recycled materials and achieve the desired thermal performance. In some cases, thermal insulation materials produced from recycled materials with a thickness equal to the raw materials provide the heat transfer coefficient allowed according to the national building regulations and show better results than the existing and predominant products in the market. In addition, the life cycle assessment report indicates that environmental impacts are minimized by replacing common thermal insulation with these recycled materials.

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