Submitted on September 8th, 2009 by Glenn Black, Pioneer Systems (not verified)
I assume that "power pit" in the article at paragraph 5 is referring to "parapet". Parapet is a short wall around the rooftop to hide roof-top mounted equipment, change the looks of the building, etc.
These winds at the parapet tend to be extremely turbulent, and therefore will put severe strain on the bearings in the moving mechanisms. It is true that there is significantly higher winds speeds at the parapet (often resulting in ripped off roofs if not designed properly), but how long will the bearings last in this extremely turbulent zone?
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Submitted on September 8th, 2009 by Glenn Black, Pioneer Systems (not verified)I assume that "power pit" in the article at paragraph 5 is referring to "parapet". Parapet is a short wall around the rooftop to hide roof-top mounted equipment, change the looks of the building, etc.
These winds at the parapet tend to be extremely turbulent, and therefore will put severe strain on the bearings in the moving mechanisms. It is true that there is significantly higher winds speeds at the parapet (often resulting in ripped off roofs if not designed properly), but how long will the bearings last in this extremely turbulent zone?