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ROHN JRM23805 Non-Penetrating Roof Antenna Mount 2.375 in. x 5 ft. Mast

Price$475.00
Manufacturer CodeJRM23805
Qty
AvailabilityUsually ships in 24 Hrs

Highlights

No penetration on roof surface
Hot Dip Galvanized for corrosion protection
Designed for concrete block ballast mount
Goes together quickly
Minimum of bolted connections
Optional roof pads or mats are available
Made in the USA!

Bulk Quantities Available Here!

ROHN JRM23805 Non-Penetrating Roof Antenna Mount 2.375 in. x 5 ft. Mast
Made in the USA!Made in the USA!
Mast Dimensions - 2“ STD. Pipe (2-3/8 O.D.) x 60”
The JRM is a non-penetrating, 5' square ballast type roof mount that supports a 5’ pipe mast. The mast is extendable to 10’ (see JRM23855 or JRM23810). The JRM is designed to receive up to 12 standard concrete blocks as ballast. The JRM is used in cellular, PCS, broadband and other applications. The base mount and mast pipe are Hot dip galvanized for corrosion protection and go together quickly.
This Item Ships LTL Freight ONLY.

Note

Height and Antenna Loading capability are dependent upon ballast weight to counter the tip-over moment of the Windspeed rating desired. In addition to the Windspeed Loading Data found under the "Specification" tab (if Available), You need to Consult an Engineer to determine the Building Code Requirements and Load Bearing Capacity of the roof structure where you will be installing this mount. It is Important to choose a Mount and Mounting Location with a Picture of the Finished Installation in Mind. Be Sure to First select a location that lends itself to applying a Load without Compromising the Integrity of the Material you place the mount on top of; i.e. roof membrane, covering, decorative cover, etc., or the Structural Members beneath. Next consider the Location over a Lifetime of Adjustments, does it lend itself to modifications in Height or Direction? Larger Antennas increase the surface area presented to air movement and thus, Wind-load does increase. As the height of the mast increases from Its last attached point on the structure, the torque applied in cantilever towards the tip-over moment also increases with Antenna off-center Weight and Wind-Load EPA (Effective Projected Area), requiring a more substantive Downward Force and/or Load Dissipation; i.e. supplemental Down-guys may be required as to keep ballast weight within Load-bearing capacity. Keep the Distance Minimal from the Antenna to the Equipment you feed, as to minimize loss and the need for Amplification.
A Retention Tether SCK150 (Safety Cable Kit) is required for Commercial Installations to mitigate Loss and Damage to Property, Further, the FRM-PAD or FRM-MAT is recommended for all installations to prevent slippage, distribute weight more evenly and prevent damage to the roof surface

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Specification Sheet
ROHN JRM Spec. Sheet
Buyers Guide
ROHN JRM Buyers Guide
ROHN Roof Mounts Buyers Guide
Foundation
ROHN Ballast Requirements
Antenna EPA & Loading
ROHN EPA Wind Formula

Pre-Galvanized & Hot Dipped Galvanized Steel Pipe

Pre-Galvanized & Hot Dipped Galvanized Steel Pipe ,offers to meet a variety of communication tower needs such as Cellular, PCS, Wireless Cable, Microwave, Wireless Internet, WiFi Hot Spots, DBS, MDS, MMDS and UHF/VHF reception. Galvanization provides a protective zinc coating that prevents rust and corrosion from water or moisture over time.

Selecting Antenna Mast Pipe

Selecting the proper antenna mast pipe is crucial. Depending on the size of your antenna, it's EPA, weight and height all play a factor in selecting a supportive pole. When planning, it's best to have all the information you can get like outside diameter of your attaching method, the clearance of gutters, siding or other obstacles in the path of your erecting a mast or tower.

When selecting a pipe you will need to know the length, OD (outside diameter), whether the AWG is 16 or 18 (the smaller the number the thicker the steel) and whether you'll need any swaged ended pieces. You'll then need to select the proper mounting such as wall, roof or maybe a tripod mount
Here you will find standard straight pipe in 5' foot and 10' foot lengths. You can also find those same pipes with a special end called a swage. A swaged ended pipe allows you to attach several lengths of pipe together.
ROHN Swaged Masts are Designed for stacking with a Notch and Swage Feature that prevents twisting of one mast section to the other without a set screw.(as shown below)

Swaged End Straight End