▶ Your Answer : In the lecture,
the professor casts doubt on the reading passage’s idea that living roof has
many benefits as an ecological architecture. The professor asserts that
advantages of living roof that the reading passage mentions have disadvantages
for following three reasons ; limited accessibility, decay building structure,
expensive initial cost.
To
begin with, the professor argues that small park on the roof top cannot be the
alternative public park. According to the reading, the park on the roof provide
resting place to the public. In opposition to this argument, the professor says
that green rooftop is usually located on a private building roof and people
rarely visit top of the buildings, hence accessibility of the living roof is
remarkably low.
On
top of that, the professor claims that the park on the building does not
function as a filter of raindrops and prevent floods. The reading passage
describes that the soil would filter polluted material from the rain and absorb
the water, this halts flood occurring. On the contrary, the professor points
out that if the park on the top absorb the water, it could percolate to the
inside of the building. Due to the pervading effect, cracks would be made and
become hazardous difficult to find.
Lastly,
the professor rebuts the reading’s point that living roof has economical merit
since green effect from the top space helps building save money by balancing
the temperature, by stating the two supportive reasons. The professor points
out that incipient constructing cost is not affordable and even much more
expensive than saving energy. The living roof, furthermore, takes couple of
years to be complete because plant and trees requires time to fully grow. |