The service life of building interiors and equipment is often considered to be 30 years, but the average life of the building shell is in the range of 50 to 100 years. LCC studies that use too short of a service life, for example 20 years, produce skewed results. Such studies overstate the cost of construction materials and understate the cost of maintaining and operating the building. When an LCC Study is done correctly, the long term cost benefit concrete provides is obvious.
I stay in an apartment in 5th floor.It was purchased with hard earned money by my parents.They spent their life and then my family of four members.It is a 7 storied building and there is provision for two more floors to come up.
Now open space on the top of buildings are also sold and laws permit it even to take finance for the proposed construction.If anything happens,may God forbid,then all the 15 houses in my floor and upstairs will have only sky on the top.
One of my sons suggests going for purchase of a plot and to construct a house maximum up to 1st floor,but the other son suggest to sell the house and go for purchase of a flatat 10 th floor.
After watching what is happening around,I am bit confused.Of course,I have the option of getting a good plot what what will happen to people in cities where population go up horizontally and free land is a scarcity.
The cities should grow vertically rather.But if it has a small land scape then?
Is insurance everything ?My flat is old one now and it has crossed 60 years of life.Who will risk purchasing it and yes if anything happens,then no one will say where there was their house.Just sky at the top.Statement that human life is not in our hand is wrong.Or have we forgotten 9/11 ?
The effect of climate because of concrete jungles is another separate issue.What happened in India and China a recent example.One can not just tell that faulty buildings raze to ground first.There are other factors too.