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RibBracket I-V™

Are You Searching for a Mounting Solution for Exposed-Fastened, Trapezoidal-Rib Metal Roofs?

RibBracket I-V Brochure

Flexible Legs Accommodate Various Trapezoidal Metal Roof Profiles

The RibBracket I-V is used with the PVKIT® for (rail-less) solar PV mounting. This metal roof bracket comes in five different sizes and is an economical, sheeting-only attachment solution that can be placed anywhere along the roof ribs.

RibBracket I-V is not limited to the location of the building substructure, offering infinite flexibility for module placement anywhere on your roof. You can mount microinverters and other module-level power electronics as well.

Angled Attachment to Resist Pull-Out

The RibBracket I-V design converts upward pull from wind uplift into shear, achieving unsurpassed holding strength.

The slotted top hole provides lateral adjustability of the PVKIT for space correction and to easily square up the modules.

RibBracket I-V provides 4” (100 mm) of air space, allowing ample airflow for module cooling and easy access for installation. The part has a channel for wire management.

Be sure to check out the many other features on the bracket overview page.



Minor Box: $5.59 Qty: 45

Master Box: $5.41 Qty: 135

*Pricing above is per bracket in USD. Prices vary based on region and other factors. Pricing improves with order quantity. Broken boxes may be subject to handling charges. Call your Authorized S-5! Distributor for current pricing.
(Pictured: The PVKIT® 2.0 EdgeGrab mounted on an exposed-fastened, trapezoidal metal roof)

Project Configurator


RibBracket I-V Works for the Following Roofs:


Exposed-Fastened Trapezoidal

Product Specifications

  • Flex-to-fit legs ensure proper fit
  • Large channel above rib can be used for wire management
  • Sheeting-only attachment can be placed anywhere along roof ribs
  • Stainless-capped, self-piercing screws specifically designed to maximize holding strength & prevent swarf
  • EPDM sealing washer
  • Bracket allows for 4” (100 mm) of air space above rib
  • 4 self-piercing screws and 1 M8 nut included



Why Choose RibBracket I-V for Your Next Mounting Project?

Which RibBracket I-V is Right for Your Roof Profile?

Trapezoidal profiles vary in angles and dimensions. Most one-size-fits-all solutions offered by others involve top-down fastening, which puts the fastener in direct withdrawal (or pull-out). These pull-out values in sheet metal are extremely low, putting the PV array at risk of blow-off.

The design of the RibBracket I-V places fasteners in shear rather than pull-out. This provides a substantially stronger attachment. These metal roof brackets are therefore specifically designed to accommodate a variety of trapezoidal rib angles and dimensions.

Do not use RibBracket I-V with rails.

S-5! also offers a fully adjustable option that fits all trapezoidal profiles with the same technologies as discussed above, but at a higher cost. Visit the ProteaBracket to learn more.

RibBracket I

Designed for popular Hawaiian profiles, such as HPM Custom 4-Rib, HPMCustom 6-Rib, and similarly-dimensioned narrow ribs.

Compatible RibBracket I top rib dimension range:
.63 in +/- to 1 in +/- (16 mm to 25 mm)

Load Test Tables (Normal to Seam)

RibBracket II

Designed for popular African and Australian profiles, such as Lysaght Trimdek® 1015, Safintra Trimflute 1015, and similarly-dimensioned profiles.

Compatible RibBracket II top rib dimension range:

1 in +/- to 1 1/4 in +/- (25 mm to 32 mm)

Load Test Tables (Normal to Seam)

RibBracket III

Designed for popular North American and Indian profiles, such as PBR Panel, R-Panel, Kirby Roof (KR), and similarly-dimensioned profiles.

Compatible RibBracket III top rib dimension range:
1 in +/- to 1 3/8 in (25 mm to 35 mm)

Load Test Tables (Normal to Seam)

RibBracket IV

Designed for popular African and North American profiles, such as Safintra IBR, KingSpan® KS1000, and similarly-dimensioned profiles.

Compatible RibBracket IV top rib dimension range:
1 ¼ in +/- to 1 ⅜ in (32 mm to 35 mm)

Load Test Tables (Normal to Seam)

RibBracket V

Designed for Ternium TR and similarly-dimensioned profiles.

Compatible RibBracket V top rib dimension range:
.75 in +/- to 1 in +/- (19 mm to 25 mm)

Load Test Tables (Normal to Seam)

How to Install RibBracket I-V on Your Roof Profile*

No surface preparation is necessary. Simply wipe away excess oil and debris, align and apply.

RibBracket I-V is mounted directly onto the crown of the panel, straddling the panel rib.

Secure through the pre-punched holes using the S-5! piercing screws supplied or Bulb-Tite rivets.

*See more detailed installation instructions in the PDF download below.

RibBracket I-V Installation Instructions

Have More Questions?

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How do I know what bracket fits my trapezoidal rib metal roof?
Can I use the RibBracket to mount snow guards?
What is trapezoidal rib roofing?
How does S-5! ensure its brackets are weathertight?
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