You've made the investment in your wireless equipment, maybe an enclosure also, you need to maximize that system's RF performance outdoors, i.e. the wireless coverage.  In general, antenna height and line of sight is a key factor. That means identify your 'peak' installation spot to install your antenna based on your personal tolerance for the various antenna mounting options that can be used on that spot, and then how much if any additional antenna mast height do you want above?    

Choose the best combo of antenna mounting option and target deployment location and mast height and diameter! These factors are intertwined, some locations may not accommodate all mounting options or mast heights, and mounting options alone may not accommodate certain mast heights or diameters. So, knowing the mount options and mast height/diameter first allows you to survey for best location and weigh the tradeoffs on cost/complexity of mount installation vs. the final height.

• Mount an antenna directly onto existing facade, tree, mast pole, etc. using after market antenna mounting options and run LMR 400 low loss RF Coax cable from there to your enclosure.
• Mount antenna directly onto the enclosure itself, then it just comes down to the location chosen to install the enclosure, which can be installed onto any facade, flat wall or pole. This is an attractive option as it reduces the potential signal loss from the antenna since there is only a very small RF Coax cable run of 1' or less inside the enclousre to connect the antenna to wireless gateway/miner.
• Mount antenna on mast(pole):
  • Choose the mast pole and desired height
  • Choose one of the mast mounting options that can support the chosen mast height and mast pole diameter:
    • Non-penetrating roof mount
    • Tripod roof mount, requires holes in your roof and bolts to rafters, and check the specs on models to see what mast height and diameter it can take.
    • Side wall mount, needs to be structurally solid wall for exterior mount such as 'Y' style wall mounts or if the side wall mount will not be anchorable to load bearing structure such as plyboard or siding, then you need to use a hollow-wall mount which installs a backing plate on interior side that can span across load bearing studs, etc.
  • Use a guy wire kit if you have more than 10' of mast above the last mount enforcement point. You can use it for lower heights, but it's mandatory over 10'.

Powertaur focused on mast poles and fabricated heavy duty, galvanized, 63" mast poles that can be stacked end-to-end with each other to assemble final heights up to 20'.The top picture shows 3 poles stacked for a total 15' height.

• each pole is 63" long, 14ga, SCH 020, 1 5/8(1.66)" OD pipe, .085" wall thickness. 
• Galvanized for rust protection
• Swaged length of 8" inset from one end of pipe for extra strong mating to non-swaged end of other pipe.