Roof-mounted sirens not on the very top of the roof

[Allenorgan42099]

I think roof-mounted sirens should always be on the highest part of the building. Here are some examples of buildings/sirens where that is not the case.

http://www.google.com/url?sa=i&rct=j&q= ... 0283201831
Model 3 in the last picture.

https://scontent-b-iad.xx.fbcdn.net/hph ... 0519_o.jpg
Do you notice the STL-10 on the back of the building in this picture?

http://www.flickr.com/photos/75905404@N ... 6039582770

http://www.youtube.com/watch?v=T8EWNV173mQ

http://www.youtube.com/watch?v=WHFFyxCgN9Y
The Model 5/7 is not seen in this video, but can be seen on street view.



I'm sure there are many more examples as well. Could you post some?

[sirendude2012]

Some of the links don't work, thought I'd let you know.

Anyway, sirens can be helped and burdened by things obstructing the sound like that. In the case of a slanted roof, the roof directs the sound higher. In the case of a wall, the sound goes the other way. Sometimes the highest point in a building isn't easily accessible or isn't structurally safe to support a large, heavy siren on the top.