This is a silly question but I need to know - it's been bugging me. Why do businesses, schools, etc put stones on the roof of each building? I was looking out the window of a tall building today and all the other buildings had stones scattered all over the roof - and I have no idea why.
Anyone?
Two things, one to reflect heat and UV, and to hold the roofing down in wind ( the wind, passing over the roofing tries to lift it).
So you can throw them off the roof at people in the street when you get bored.
This is a silly question but I need to know - it's been bugging me. Why do businesses, schools, etc put stones on the roof of each building? I was looking out the window of a tall building today and all the other buildings had stones scattered all over the roof - and I have no idea why.
You should get out more...
Cheers Londonsquare - just one of those silly questions you know? smile
so THAT'S why our roof (on our school) is always leaking. No rocks!
so THAT'S why our roof (on our school) is always leaking. No rocks!
I doubt that's the main reason, the gravel slows the aging of the roofing, sounds like you just have a bad roof. This is not unusual.
The Architect specifies a high quality roofing system; the engineers design the building elements to suit and then when the bids come in a little high; the school board doesn't want to spend more than they have allowed, so they start to trade down the materials, such as roofing, to bring the cost down.
haha.. I know about the lowest bidder. the lowest bidder left a hose running over night on the roof (that wasn't "patched" yet) during the summer. shock
grin Maybe alians have been dropping them as they pass through lol