Sisal-fibre based thermal insulation for use in buildings

Abstract

ABSTRACT The objective is to evaluate the potential of the thermal insulation application of sisal fibre in the form of a nonwoven material. The thermo -physical and microstructural characteristics of sisal/nonwoven wool were determined experimentally. Also, the tensile strength of sisal/nonwoven wool was systematically evaluated. The thermal conductivity coefficient of the fabricated sample is 0.038 W/(m. K) and is comparable and very satisfactory compared to traditional materials. This work results show high potential for the applicability of nonwoven designs from sisal fibre in the building. Exceptional thermal performance, low density, fire resistance, and air permeability factors have confirmed that this is a promising product for the thermal insulation market. The thermal performance of the developed material, integrated into an exterior wall and exposed to the climatic conditions of the Mediterranean climate, was performed. It was found that the wall made with the developed nonwoven designed from sisal fibre material provides a 78% reduction in annual cooling energy needs and a 76% reduction in annual heating needs. The specific cost of the developed insulation materials is studied, and the results show that the designed insulation can be a competitive solution.