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PROJECT TOPIC: COMPARATIVE STUDY OF THERMAL PROPERTIES OF SOME COMMON ROOFING MATERIALS IN NIGERIA

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ABSTRACT

Thermal properties refer to characteristics of a material defining the substance and related to temperature dependent. The most important thing in building design is the protection of people who live and work within the environment. The research work identified some common roofing materials used for building design in Nigeria.. The samples include aluminium (coated), Zinc and stone coated. The investigation was done using Ohm‟s law and Frankz Weidman principle. The thermal properties investigated were thermal conductivity, thermal absorptivity, thermal diffusivity, thermal resistivity and specific heat capacity. with the view of establishing their suitability as roofing materials in building design in Nigeria based on climate and weather condition of particular location. the results show that zinc has the highest thermal conductivity, thermal absorptivity, and  specific heat capacity and also the lowest thermal diffusivity and thermal resistivity while stone coated material has the least thermal conductivity, absorptivity, and specific heat capacity and also the highest rate of thermal diffusivity, and thermal resistivity Aluminum coated is within the range of both sample, with thermal conductivity, thermal absorptivity, thermal diffusivity, thermal resistivity and specific heat capacity. Thus stone coated material may be recommended for roofing of building where the temperature is high and zinc may be recommended for roofing of buildings where temperature is low. For normal temperature range, Aluminium material may be recommended


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