ROHN PRM640 Non-Penetrating Roof Mount 4.00 x 50 inch Mast
Mast Dimensions - 3.5“ STD. Pipe (4 O.D.) x 50-5/16”
This non penetrating roof mount is capable of supporting dishes up to 6' in diameter for PCS, wireless, cable, DBS satellite and UHF/VHF reception depending on wind and Ballast load (see details). The base of the roof mount is 10.5’ triangular using 48 standard concrete blocks used as ballast to form the base. The base hardware and mast pipe are Hot dip galvanized for corrosion protection and goes together quickly.
Made in the USA!

Spec. Sheet

Height and Antenna Loading capability are dependant upon ballast weight... You need to Consult an Engineer to determine the Load Bearing Capability of the roof that you are entertaining such an Installation. Please refer to the Chart (pdf link above) which is a great place to start in determining whether your circumstances qualify for such an installation. If you cannot find someone local to evaluate the registered plans for your Flat Roof Structure, ROHN may be able to put you in contact with someone who can.

Warranty Sheet