1.5-Inch Ribs, 7.2 Inches on Center
AMP 7.2 Rib Metal Panel: A Deep-Rib Metal Wall Panel and Roof Panel for Texas
The AMP 7.2 Rib metal panel is the one profile in our line that is equally at home on a wall and on a roof. Symmetrical trapezoidal ribs 1.5 inches deep at 7.2 inches on center give it long spans, bold shadow lines and a look that reads the same from either direction. Architectural Metal Panels forms it in Forney and installs it on commercial buildings, barndominiums, canopies and agricultural structures across Dallas-Fort Worth.
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What Makes the 7.2 Rib Different?
Depth and symmetry. Most exposed-fastener panels have a tall rib on one side and a short one on the other, so they only lay one way. The 7.2 Rib has identical ribs across the sheet, so it can run vertically, horizontally or on a roof, and the installer can turn panels end for end without a visible change. The 1.5-inch rib depth is what gives it spans that lighter corrugations cannot reach.
AMP data confirms the rib depth, spacing, trapezoidal shape and dual orientation. Coverage, gauge and lengths below are the usual industry values for this class of panel, marked “typically”; your spec sheet confirms them.
| Specification | AMP 7.2 Rib |
|---|---|
| Rib depth | 1.5 inches |
| Rib spacing | 7.2 inches on center, symmetrical trapezoidal ribs |
| Net coverage | Typically 36 inches (five ribs per panel) |
| Gauge options | Typically 22, 24 or 26 gauge |
| Substrate | Galvalume steel (AZ50 under the paint); aluminum on request for walls |
| Finishes | Kynar 500 PVDF or SMP; bare Galvalume on request |
| Fastening | Exposed washer-head screws through the flats; spacing per the engineering data |
| Orientation | Vertical or horizontal on walls; on roofs the ribs run down-slope |
| Applications | Commercial walls and mansards, canopies and carports, barndominium walls and roofs, agricultural roofs, screen walls, soffits |
| Lengths | Cut to length in our Forney shop; typically up to about 40 feet |
| Span, load and wind ratings | Engineering data on request |
Where Is the 7.2 Rib Used in Dallas-Fort Worth?
On projects that want one bold profile to do several jobs. The same panel can clad the walls, cover the canopy and roof the building, and because the ribs are symmetrical the shadow pattern stays consistent on every surface.
Commercial
Retail and office buildings use it on mansards, parapet screens and feature walls; car washes and drive-through canopies use it for both the roof and the fascia. Horizontal installation on a long storefront gives a strong banded look.
Barndominiums and modern homes
A barndominium owner in Forney or Royse City can run the 7.2 Rib on the shop walls and the roof and switch to a concealed-fastener panel or standing seam on the living side. On a modern home it works as a roof over porches and as a vertical accent.
Agricultural and industrial
Equipment sheds, covered arenas and hay barns use it for roofs over wide purlin spacing, where its depth means fewer purlins than a lighter panel would need.
Installing the 7.2 Rib on Walls and on Roofs
On walls it fastens through the flats into girts, furring or sheathing over a weather barrier. On roofs it fastens into purlins or a solid deck with high-temperature underlayment, with sealed side and end laps.
Wall installation
- Substrate: steel girts, sheathed framing or furred masonry, kept flat because a deep rib shows every bow in the backing.
- Weather barrier: a weather-resistive barrier over sheathing on conditioned buildings, lapped and taped.
- Furring: hat channel where panels run horizontally or where a drained cavity is required.
- Fastening: screws in the flats at the engineered spacing, snug but not crushed.
- Trims: base, corner, jamb, head and rake trims plus profile-matched closures, all from our custom sheet metal shop.
Roof installation
Minimum slope and lap sealant requirements come from the engineering data; on a solid deck we use underlayment rated to at least 240 F because metal roofs run hot in Texas. Ridge, eave and gable trims, pipe boots and any crickets come from the same shop, and metal coping finishes parapets on commercial roofs.
Hail, Heat and Long Spans in North Texas
A 1.5-inch rib stiffens the sheet enough that hail dents on walls are rare, and on roofs 24 gauge resists denting better than 26 gauge; ask about the impact rating of the full assembly if an insurer will want it. Large hail can mark any metal roof, so check the policy for a cosmetic-damage exclusion.
On roofs the sun is relentless. DFW sees a summer UV index of 9 to 10 and about 20 days above 100 F each year, so we recommend Kynar 500 PVDF for anything but light colors on a budget. Our 24-gauge vs 26-gauge guide explains the thickness choice.
Long panels move. A 40-foot roof panel grows and shrinks measurably between a January freeze and an August afternoon, and exposed screws pin it in place, so we keep single-panel lengths practical, follow the fastener pattern at eaves and corners, and plan a washer check at roughly year 10. The flats between ribs are narrow enough that oil canning is rarely visible.
7.2 Rib vs PBR vs Wave 16-4
The PBR panel is the metal-building standard with a purlin-bearing leg; it costs a little less and is the default for shop roofs. The 7.2 Rib spans similar distances with a symmetrical look that suits walls better. The Wave 16-4 hides its fasteners and belongs on the public face of a building, not on the roof.
| Factor | 7.2 Rib | PBR | Wave 16-4 |
|---|---|---|---|
| Rib depth | 1.5 in | Typically 1.25 in | 7/8 in |
| Rib pattern | Symmetrical trapezoid | Major ribs with purlin-bearing leg | Four rounded waves |
| Fasteners | Exposed | Exposed | Concealed |
| Roof use | Yes | Yes | No |
| Best for | Walls and roofs that share a look | Metal building roofs and walls | Facades and homes |
Compare the full line on our metal wall panels page.
Engineering Data, Spec Sheets and Lead Time
Because the 7.2 Rib is often chosen for its spans, we send load and span data with the spec sheet on request so an engineer or plan reviewer can check purlin and girt spacing. Submittal packages include the profile sheet, color chart, finish warranty and trim details. Stock colors typically ship within a few weeks of approved drawings. Request everything through the free price quote form.
For complete shop, barn and barndominium roofs, including R-panel and standing seam alternatives, see commercial metal roofing in Dallas-Fort Worth. Our owner brings 26+ years of metal roofing experience to every roof and wall.
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7.2 Rib Questions
Can the AMP 7.2 Rib be used as both a wall panel and a roof panel on the same building?
Yes. Symmetrical ribs let the same profile run on walls, canopies and roofs with a matching shadow pattern. Roof panels follow the slope and lap rules in the engineering data.
What is the minimum roof slope for the 7.2 Rib?
It depends on the gauge, lap sealant and the engineering data for the project, so we confirm it on your quote. Shallow pitches need sealed laps; very low slopes are better served by mechanically seamed standing seam.
How far can the 7.2 Rib span between purlins?
Further than lighter corrugations because of the 1.5-inch rib depth, but the exact figure depends on gauge, load and wind zone. We provide span tables on request.
Is the 7.2 Rib an exposed-fastener panel?
Yes. Screws with sealing washers go through the flats. Plan a fastener check every few years and a replacement round at roughly 10 to 15 years in Texas sun.
Can I install the 7.2 Rib horizontally?
Yes. Horizontal walls need vertical furring and end-lap details that shed water; the symmetrical ribs make a horizontal run look intentional.
Do you sell the 7.2 Rib materials-only?
Yes. We cut panels to length, form the trims and closures in Forney and package the fasteners for contractors and owner-builders.
Get Your Free In-Home Estimate
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Or text a photo of your roof to (469) 569-3956
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One Profile for Walls and Roof?
Send plans, spans or photos and we quote the 7.2 Rib for walls, roof or both, with engineering data on request. Made in Forney, installed across Dallas-Fort Worth. Call (469) 569-3956.