Which of the following is a requirement for the design of windows in Japanese residential buildings

Which of the following is a requirement for the design of windows in Japanese residential buildings

Which of the following is a requirement for the design of windows in Japanese residential buildings, as per the Building Standards Act?

A. Minimum window area of 10% of the floor area

B. Minimum window area of 15% of the floor area

C. Minimum window area of 20% of the floor area

D. No minimum window area requirement

E. Minimum window area of 5% of the floor area

Answer: B

Explanation: The Japanese Building Standards Act requires that residential rooms (living rooms, bedrooms) have a minimum window area of 15% of the floor area to ensure adequate natural lighting and ventilation, which is essential for habitability.