Rohn JRM27505 Non-Penetrating Mount

Heavy-Duty Non-Penetrating Roof Mount for Wireless Equipment
The ROHN JRM27505 is a rugged non-penetrating roof mount designed to securely support antennas and wireless communication gear without damaging roof surfaces. This system features a 5-foot galvanized steel mast with a 2.88" outer diameter and a 0.203" wall thickness, delivering the strength needed for heavier antennas and demanding installations. It’s ideal for broadband, cellular, PCS, surveillance, and temporary broadcast applications where roof preservation is a priority.

Engineered for Non-Invasive Installations on Flat Roofs
This mount is built for use on flat rooftops and does not require any drilling or penetration into the structure. Instead, it uses ballast weight from standard 16" nominal concrete blocks (not included) to anchor the frame securely in place. This makes it suitable for leased buildings, commercial rooftops, or any site where maintaining roof warranties or avoiding permanent alterations is essential.

Wide Base Frame Provides Maximum Stability in Harsh Conditions
The JRM27505 features a 5-foot square base that distributes weight evenly and accommodates up to 12 concrete blocks for dependable wind resistance. This large footprint enhances stability while reducing pressure points on the roof. The galvanized steel frame is built to withstand the stress of outdoor exposure, high winds, and variable weather conditions across different regions.

Thick-Walled Galvanized Mast for Mid-Weight to Heavy Antennas
With a 2.88" outer diameter and 0.203" wall thickness, the included galvanized mast is specifically sized for larger antenna systems and equipment with higher loading demands. The 5-foot height is optimal for applications where clearance is required above rooftop obstructions without exceeding structural load limits or increasing wind exposure too drastically.

Fast Assembly and Modular Shipping for Job Site Efficiency
This system ships disassembled for easier transport and handling, especially in multi-story buildings or areas with limited access. Assembly is straightforward with included hardware, making it a practical choice for installation crews working under time constraints or in remote locations. Its compact shipping profile reduces logistical challenges while delivering robust rooftop support upon installation.

Compatible with Optional Safety and Protective Accessories
The JRM27505 is designed to pair with ROHN’s JRMMAT (roof mat) and SCK150 (safety cable kit), available separately. These accessories add protection to the roof surface and provide extra anchoring security in high-wind environments. Installers can refer to ROHN’s official ballast guidelines to determine the exact number of blocks needed based on antenna type and wind loading zones.

Trusted Mounting Solution for Communications Infrastructure
Used by wireless ISPs, cellular providers, surveillance contractors, and telecom installers, this mount is trusted for both permanent and temporary use cases. Its durability, non-penetrating design, and heavy-duty mast support make it a reliable choice when performance and rooftop integrity are equally important.