太鼓障子と木製複層ガラスサッシによる伝統民家の開口部断熱改修仕様の性能評価

抄録

Heat insulation specifications of the fitting which combined a Taiko-shoji with wooden pair glass sash are effective as the way of repairing a traditional wooden house with not only heat insulation performance but also the execution and design as well. In this paper, the insulation performance of Taiko-shoji was examined by indoor experiment, actual house measurement and numerical calculation. The results are as follows. As the result of indoor experiment, the heat resistance value of Taiko-shoji (air space=26mm) was at 1.3 times of single shoji and about 20% of the heat transfer coefficients decreased. As the result of measurement of improved actual house, the average heat resistance value of Taiko-shoji + pair glass was 0.64 m²·K/W, pair glass only was 0.35 m²·K/W. The overall heat transfer coefficient of Taiko-shoji + pair glass decreased to 27% of single glass by the numerical calculation. In case that the traditional house with single glass is repaired by Taiko-shoji + pair glass fitting, the validity of these specifications is shown by the simulations.