MIRO 3-RAH-12 Roller Pipe Support - Adjustable 3.875" to 12" Height

The MIRO 3-RAH-12 is an adjustable rooftop roller pipe support designed for gas, conduit, and mechanical piping that requires higher clearance. With an adjustable roller height from 5.25 to 12 inches, it ensures proper spacing while accommodating thermal expansion. Its polycarbonate base distributes loads evenly without roof penetrations, protecting membranes and extending roof life.

Key Features:

• adjustable clearance range from 3.875 in. to 12 in.
• supports axial thermal pipe movement with low-friction roller
• non-penetrating polycarbonate base protects roof membranes
• compact footprint for versatile layout and spacing
• backed by a 20-year limited warranty

• Model / SKU: 3-RAH-12
• Pipe capacity: up to 3 in. nominal (3.0–3.75 in. OD typical)
• Adjustable clearance: 3.875 in. to 12 in.
• Base dimensions: 9 in. × 15 in. (approx.)
• Footprint area: approx. 135 sq. in.
• Materials: polycarbonate base, polycarbonate roller, galvanized hardware
• Load rating: up to 122 lb per support (static, evenly distributed load)
• Recommended spacing: up to 7 ft on center depending on pipe size and load
• Design: non-penetrating, adjustable height, accommodates thermal expansion/contraction

• plan pipe routing and determine clearance requirements.
• clear and inspect roof surface to ensure stable placement.
• set the 3-RAH-12 base on the membrane along the pipe run.
• adjust roller height between 3.875 in. and 12 in. to achieve required clearance.
• place the pipe on the roller cradle, ensuring free thermal movement.
• repeat installation at intervals up to 7 ft depending on load and pipe size.
• confirm alignment, stability, and uniform load distribution.

Q: what pipe sizes can the 3-RAH-12 support?
A: it is designed for up to 3 in. nominal pipe, with outside diameters up to 3.75 in.

Q: what is the adjustable clearance range?
A: the 3-RAH-12 offers pipe clearance from 5.25 in. to 12 in.

Q: does it require roof penetrations for installation?
A: no, the polycarbonate base is non-penetrating and rests directly on the roof.

Q: what is the weight capacity of each support?
A: each 3-RAH-12 can support up to 122 lb of evenly distributed static load.

Q: does the roller allow thermal expansion?
A: yes, the roller assembly allows pipes to move freely with thermal changes.