Is the lightning rod only on that part of the roof?
Of course not. It continues to 3 meters below the ground so that a large amount of current is introduced into the ground to protect the house from electrical shocks
For the top and bottom of the scattered shape, in addition to the highest point outside the facilities lightning rod, and the rest of the low place, its yang angle and more than ten meters of flat section should also set lightning rod. This is mainly because the surface of the lightning is very small, a plane of the diameter, rather than a large area of the plane.
In general, the roof is flat and should be equipped with lightning rods at the corners of the sun. Straight section is too long, usually about ten meters to set a lightning rod.
The lightning rod is not only the top of the tower. The lightning rod on the building is built according to the geometry of the building
