Last Uploaded: February, 2010

Toyota Institute Global Learning Center

Architectural DataFeaturesCasbee ScoreTechnical DetailsBack to Building List建物リストに戻る

Double skin

From the exterior inwards, the double skin consists of outer glass → air layer → roll screen → air layer → inner glass. On summer afternoons, when sunlight shines in directly, the sun’s rays are blocked and absorbed by the roll screen. Cooler load can be reduced by discharging the heat from the sunlight shining into the gallery through electric-powered natural ventilators installed above and below. Besides this, the double skin has the multiple function of natural ventilation and natural smoke discharge in spring and autumn. In summer, natural ventilation inside the double skin occurs an average of around 23 times / hour, and our measurements confirm that sunlight load can be reduced by 100 W/m2 of the gallery floor area.

Previous BuildingPrevious Building Next BuildingNext Building
These cases are described based on assessment results obtained using CASBEE.
CASBEE is a method for rating the environmental performance of buildings using Building Environmental Efficiency (BEE) as an indicator, which is based on the results of separate scores obtained for Q-1~Q-3 (Quality) and LR-1~LR-3 (Load Reduction).