Rohn JRM27505HC Non-Penetrating Roof Mount

Heavy-Duty Non-Penetrating Roof Mount for Antennas and Equipment
The ROHN JRM27505HC is a robust non-penetrating roof mount system that provides stable, rooftop antenna support without the need to drill into or compromise the surface. This unit includes a galvanized 5-foot mast with a 2-7/8″ outer diameter and arrives with a full hardware carton for quick and straightforward installation. Designed for ballast-based mounting, it’s widely used in telecom, broadband, security, and wireless network applications.

Ballasted Roof Mount Design Protects Roof Surfaces
This mount is engineered to anchor securely using standard 16" concrete blocks (not included), eliminating the need to puncture the roofing material. As a result, it helps maintain roof warranties, prevents water intrusion, and avoids long-term structural damage. Its base frame accommodates up to 12 concrete blocks, making it ideal for flat roof deployments where preserving the surface is essential.

Supports Larger Masts for Heavier Installations
The included mast measures 2.88" in outer diameter with a wall thickness of 0.203", making it suitable for supporting heavier antennas and communication gear. The system is designed to support mast extensions up to 10 feet in height and can also be configured with alternative mast diameters ranging from 2" to 3" for greater compatibility. This makes the JRM27505HC a flexible platform across a wide range of mounting scenarios.

Shipped Unassembled for Efficient Transport and Job Site Setup
The entire mount ships disassembled on a single skid, minimizing bulk and making transport to job sites or rooftops more manageable. Once fully assembled, the unit weighs approximately 50 pounds (excluding ballast), offering a sturdy yet movable solution for temporary or permanent installations. All required mast hardware is included in the hardware carton to simplify setup.

Versatile Use Across Telecom, PCS, and Broadband Applications
From rooftop surveillance systems and point-to-point wireless bridges to LTE boosters and WISP backhauls, this mount supports a wide variety of communication technologies. The mast’s diameter and wall thickness provide the durability needed for moderate-to-heavy antenna loads, while its 5-foot height keeps gear elevated and clear of most rooftop obstructions.

Compatible With Safety and Roof Protection Accessories
To protect roof membranes and add extra anchoring security, ROHN offers optional accessories like the JRMMAT (1/8" thick) or JRMPAD (3/8" thick), both of which provide a physical buffer between the mount and the roofing surface. The JRMMAT consists of four interlocking 72" x 18" pads, forming a 72" x 72" shield beneath the base. Installers working in windy conditions can also use the SCK150 safety cable kit (3/8" x 150') for added structural security.

Reliable Mount for Professionals Needing Rooftop Flexibility
The JRM27505HC is trusted by technicians and contractors who need a secure mounting option without compromising the rooftop below. Its combination of strength, weather resistance, and tool-friendly assembly makes it a top choice for rooftop antenna projects across the wireless, security, and infrastructure industries.