M-Block Rooftop Pipe Support – Flat-Bottom Rubber Channel Support

Variants:

1. Rubber Block with 13/16" Strut Attached
2. Rubber Block with 1-5/8" Strut Attached
3. Rubber Block with no strut attached (attach your own strut or other accessories)

The MIRO-CG M-Block is a heavy-duty rooftop pipe and channel support designed to distribute weight more effectively and protect your roof. Unlike other rooftop supports, the M-Block features a completely flat bottom surface—providing maximum contact with the roof membrane and minimizing PSI. That means less risk of roof damage, leaks, and puddling over time.

Built for durability, engineered for performance:

• Prevent Puddling with Flat-bottom design: Only rubber block with a fully flat base for optimal weight distribution.

• Heavy-duty construction: Made from 100% recycled rubber for long-lasting performance in all weather.

• Multiple options available: Choose M-Block alone, or with 7/8" or 1-5/8" G90 galvanized strut for various mechanical, piping, or electrical applications.

• Non-penetrating: Keeps your roof intact—no fasteners or flashing required.

• Flexible load capacity: Recommended for up to 165 lbs at 3.0 PSI; maximum tested load up to 550 lbs.

Specifications:

• Base Dimensions: 11" L x 5" W x 4" H (add strut height on top of base height)

• Weight: 4.5 – 5.75 lbs depending on configuration

• 2-year limited warranty

• Recommended spacing: ≤10' on center

M-Block is ideal for supporting conduit, cable trays, ductwork, and rooftop mechanical systems. A smart, low-PSI alternative to other rubber blocks.

View the M-Block Detail Sheet (PDF)