The reading discusses the advantages of green roofs , the roofs that cover the top of the building with vegetation. However, the lecturer strongly disputes the reading passage's claim that green roofs are beneficial in several ways.
First and foremost, the lecture states even tough green roofs are constructed, it is not quite accessible for residents to use. This rebuffs the reading passage's claim that green roofs can solve the problem of the shortage of parks.
In addition, the speaker argues that people can not see a great view of living roofs due to the height of the building. People can not see the roof from the below. This counters the statement in the reading that living roofs offer a beautiful appearance and view so that many people feel delightful.
Finally, the lecturer states that building living roofs would cost additional costs. The installation of a living roof costs nearly 2 billion dollars. Also, even after it is constructed, there would be extra costs for the maintenance of soil and vegetation. Thus, these reasons cast doubt on the reading passage's assertion that building green roofs is more cost -saving method that conventional roofs.
For these reasons, the lecturer believes considering green roofs revolutionary and advantageous is literally exaggerated, while the reading passage advocates the construction of green roofs. |