Question

Spikes are installed on the rooftop of high rise buildings.give reason
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Answer 1

Answer:

R.A.I.L. has great experience in preventing birds from nesting on buildings. ... They are just spikes mounted on rooftops and balconies that prevent the birds from ever landing on the building's surface. It's a safe, harmless way of keeping the birds away that our rope technicians have great experience installing.

HOPE IT HELPS.....

Answer 2

Answer:

the roof is the have a extra long pins that stops the birds and also other birds like seagulls landing on the roof. therefore they prevent the roof from fouling.