THE EFFECT OF CROSS-LAMINATED TIMBER (CLT) MATERIAL ON BUILDING HEATING-COOLING LOADS IN A TEMPERATE HUMID CLIMATE ZONE

Abstract

Cross Laminated Timber (CLT) is a structural wood material that is renewable, nature-friendly, and with a great number of advantages. The aim of the study is to examine the energy performance of a building that has been constructed by means of CLT materials and compare it to that of another one with traditional construction materials. In the study, the energy loads of a model building, the exterior walls of which had been made from CLT, and different thermal insulation materials were analyzed through the DesignBuilder simulation program. Also, the thermal conductivity coefficients of 22 different CLT walls made from various exterior coating materials and insulation materials were experimentally measured. According to the results of the experimental measurements, the lowest thermal conductivity coefficient was obtained for CLT walls with EPS thermal insulation. While a decrease by 8-16% was observed in the CLT model building in comparison to the reference building in terms of annual total heating loads, an increase by 13-23% was observed in the CLT model building in terms of annual total cooling loads.

Keywords

• building energy performance
• cross laminated timber (clt)
• heating-cooling loads

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