Which of the following materials is used as a waterproofing layer for flat roofs in Japanese buildings
Which of the following materials is used as a waterproofing layer for flat roofs in Japanese buildings, known for its durability and resistance to UV radiation?
A. Asphalt felt
B. Polyvinyl chloride (PVC) membrane
C. Bituminous paint
D. Concrete mortar
E. Ceramic tiles
Answer: B
Explanation: PVC membrane is widely used as a waterproofing layer for flat roofs in Japanese buildings. It is durable, resistant to UV radiation and moisture, and easy to install, making it the preferred choice for flat roof waterproofing—this is a common material and construction
