A RELATIVE EVALUATION OF THERMAL CHARACTERISTICS OF BI-LAYERED MATERIAL USING THE HOT DISC TECHNIQUE

−Towards a better combination of floor materials for an underfloor air-conditioning system−

Abstract

The objective of this work is to compare the apparent thermal characteristics of ten different types of bi-layered materials using the hot disc technique. In this paper, bi-layered material refers to the components of a floor that consist of structural board and finishing materials; both are considered mainly wood-based materials. The result showed the influence of the thermal conductivity of the finishing material was dominant, but in some samples the presence of the air layer on the back side of the finishing material caused a decrease in thermal conductivity of the whole bi-layered material.