| This is the best option for an aerial installation as the maximum height can be achieved without the use of a long mast.
On larger chimneys it is possible to install a longer mast with the use of the double chimney bracket method.
The double bracket method is also a good choice for the installation of a medium/large aerial, as a large aerial installation on a standard single chimney bracket could be damaged in high winds.
If in doubt regarding any aspect of height safety, always seek professional advice and never increase the risks by taking chances. Look here for more in depth details. | 
