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.
Exposed-Fastened Trapezoidal
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.
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)
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)
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)
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)
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)
RibBracket I-V is mounted directly onto the crown of the panel, straddling the panel rib.
*See more detailed installation instructions in the PDF download below.
Due to variations in lapped ribs and sealant placement, installing these brackets on a lapped rib of trapezoidal panel profiles is not generally recommended. If your application requires fixing to a lapped rib, please contact our support team at [email protected].
Submit your information by clicking the form below, and we’ll get back to you almost immediately.
Our RibBrackets are very descriptive with critical dimensioning and some example panel nomenclatures.
Please contact [email protected] to request assistance.
No. RibBracket is a sheeting-only attachment for face-attached metal roof profiles. Snow guards on these types of profiles should always be attached to the building structure. (Corrubracket can be used in this fashion on corrugated roofs and some trapezoidal ribbed panels as it fastens to structure)
A trapezoidal roof profile has a trapezoidal-shaped rib pattern spaced across the panel. (A trapezoid is a quadrilateral (four-sided shape) that has just a single pair of parallel sides.) Sometimes, trapezoidal roofs are mistakenly referred to as corrugated. This is a misnomer as the corrugated profile has a repeating wavy pattern across its surface.
Trapezoidal rib roofs are popular with producers because the shape makes them very material-efficient with a high strength-to-weight ratio. This makes for a very cost-effective profile. The shadows of the trapezoidal shapes offer clean lines whether installed vertically, diagonally, or horizontally. They also possess good structural characteristics and can carry design loads well (e.g. for snow and wind). However, it is not considered as premium a profile as standing seam due to its attachment method.
S-5! brackets feature integrated sealant reservoirs to prevent over-compression of the seal and to protect the sealant from UV degradation. No risky, field applied sealants are ever used. No need to source sealant materials. Instead, you get permanence, convenience, maintenance freedom, ease of installation, a complete assembly, and peace of mind.
Double Seal
EPDM factory-seal is used on sheeting-only attached brackets that mount on roof ribs or corrugations out of the drainage plane. This creates a “double-seal” by way of the EPDM washer on the fasteners from above and the pre-applied EPDM on the feet of the bracket from below.
Triple Seal
A watertight, factory-applied, 60-year butyl polymer seal is used on our brackets that attach to the decking or structure in the drainage plane of the roof. This butyl polymer along with the EPDM seal on the fasteners forms what we call a “triple seal”. The first seal is formed by the washer on the fastener from the top side. The second seal is the butyl polymer beneath the feet of the bracket, and the third is formed as the fastener is driven into the substrate, pulling butyl polymer into the threads of the fastener.