In the recent times ever since I know the practice of Vaastu, lot of things I tend to observe. In the process I come across many facets of buildings under construction, Commercial complexes, Industries, Hotels, hospitals so on.
I find that the Mankind is unkind to natural elements. For instance I come across many commercial buildings. The builder / developer hands over the property with proper frame made up of cement concrete, brick walls and flooring finished in ceramic tiles or any such material.