Guide to Roof Mounts
Height and performance
For most antenna styles, the height they can be mounted above ground or sea level is one of the most important factors governing RF performance.
Generally, the higher an antenna is mounted, the better it will work, as issues like terrain and vegetation obstructions will be negated.
In remote areas, it may be necessary to construct large towers to achieve the required performance and where available, existing buildings can be used as pseudo towers.
A simple and cost efficient way to gain height for antennas is to use existing structures and install posts, tripods or guyed masts etc. to a roof.
There is no standard roof mount design, rather mounts are fabricated to suit particular applications. For example - a single Yagi on a residential property, a grid array on an industrial compound, sector antenna farms mounted on top of a CBD skyscraper.
Using rooftops to mount RF equipment is such a common practice that many companies (particularly those who provide IT services), make arrangements to pay landowners a monthly fee to rent the space on the roofs of tall buildings or on buildings located on hills in the area where a business operates.