Question

The aggregate area of doors and windows shall not be less than ___________ of the floor area of room.

(a) 1/10

(b) 1/9

(c) 1/7

(d) 1/6

I had been asked this question by my college director while I was bunking the class.

This intriguing question comes from Planning Regulations and Bye-Laws topic in division Functional Planning of Buildings of Construction & Building Materials

Answer 1

Right option is (c) 1/7

Best explanation: As per IS code, if the area is less than the specified area, occupants of the building will not receive enough lighting and ventilation. The area of such openings excluding area of doors should be minimum 1/10  of the floor area for dry-hot climate and minimum 1/6 of the area for wet-hot climate.