R-Panel

R-Panel is a multi-use wall and roof panel used primarily in pre-engineered metal building applications. R-Panel is also a popular choice for residential metal roofing, especially in the Southwest. An optional purlin bearing leg (PBR) rests on purlins and provides support for fastening the panel lap.  Fade and Chalk resistant Kynar 500 (PVDF) coatings are a McElroy Metal standard for R-Panel and provide building owners with a long-term, high performing panel that retains its original color and beauty year after year.

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Great for

Walls

Walls

Roofs

Roofs

Residential

Residential

Commercial

Commercial

Requirements for R-Panel Walls and Roofs

To ensure performance across varying applications, McElroy Metal's R-Panel has been thoroughly tested. R-panel wall and roof panels feature a Class A fire rating under UL 790 (ASTM E108 and NFPA 256) procedures. Other R-Panel testing and classifications includes UL 580 Class 90 Uplift testing, ASTM E1680 air infiltration, ASTM E1646  water infiltration,  and UL2218 Class 4 impact resistance.

R-Panel also has Florida State Approval 1747.9 and 1832.11, Miami Dade Approval (PBR only) and Texas Department of Insurance Approval RC-284 (PBR only).

Installation of R-panel roofs requires a minimum slope of 1:12 and butyl sealant should be utilized in the laps. 

 

A Variety of Options

Because R-Panel is very versatile and utilized on a wide variety of applications, it is available in many options. R-Panel is available with and without purlin bearing legs (PBR). Typically, PBR panels are utilized on roof applications because roofers appreciate the extra support when installing the panels to the roof substrate, or deck. Non PBR panels are more common for wall applications.  Building owners can select R-Panel in wide range of Kynar 500® colors, or silicone-modified polyester coatings. R-Panel's most popular steel substrate is 26 GA Galvalume®. Or select optional 22- or 24-gauge Galvalume® panels.

Specifications & Details

Details
Minimum slope (with sealant) 1:12
Manufacturing Facilities Bossier City, LA; Clinton, IL; Ashburn, GA; Sunnyvale, TX; Diamond, MO
Note Oil Canning is a natural occurrence in metal panels and is not a cause for panel rejection
Testing
Fire Rating Class A
Uplift Test UL580 Class 90; ASTM E 1592 (24 Ga. PBR)
Air Infiltration ASTM E1680
Water Infiltration ASTM E1646
Class 4 Impact Resistance UL2218
Static Water FM 4471 Appendix G (24 GA PBR only)
Florida State Approval 1747.9, 1832.11
Fire Resistance UL263
Miami Dade Approval NOA #17-0829.04 (roof-24 GA min. PBR)
NOA #17-0829.05 (wall-24 GA min. PBR)
Texas Department of Insurance Approval RC-284 (PBR Only)
Testing Data For available Test Data, Section Properties or Load Tables, please visit our downloads section.
Panel Options
Roof panels purlin bearing leg required
Wall panels non-purlin bearing leg optional
Coating - Kynar 500® (PVDF)
- Silicone Modified Polyester (SMP)
Substrate - Standard 26 GA Galvalume® (roof and wall panels)
- Optional 24, 22 GA Galvalume (wall panels only)

Get More Information

To ensure you have all the information you need before making a purchasing decision, we’ve provided a series of downloadable files related to R-panel walls and roofs below. These downloads allow you to access more information related to test data, section properties, load tables and much more.

Don’t see the information you need? You can always reach out to us directly. One of our customer service representatives can provide any additional information you may require.

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Related Files

Information Flyers

Technical Bulletins / UL 580 Construction Numbers

Technical Bulletins / Miscellaneous Information

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General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

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Samples & Color Charts

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FAQs

While the upfront costs of installing a metal roof are often higher than shingles, a metal roof lasts longer and will be replaced or repaired far less frequently. A typical shingle roof lasts anywhere from 12 to 20 years, depending upon how well it’s maintained and weather elements it may encounter. Metal roofs, on the other hand, can last between 40 and 60 years while also requiring less maintenance, making them a more cost-effective choice over the lifespan of the roof.

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While it may be true that metal roofs on buildings like garages and pole barns intensify the sound of falling rain, this is primarily caused by the lack of a roof deck, insulation, and underlayment. On a residential home, layers of building materials between the metal roof and the living area reduce the noise significantly, making metal roofs as quiet as any other roofing material when it rains. Check out this video to see and hear for yourself.

Metal roofing actually reflects much of the sun’s heat and energy. While conventional shingles absorb much of the sun’s heat, metal roofing can actually reduce cooling energy costs by as much as 20%. That’s because the coating used on modern metal roof panels incorporates special pigments that reflect the sun’s energy and release heat that is absorbed throughout the day.

Residential metal roofing is available in a variety of aesthetically pleasing designs that can heighten the curb appeal of any home. In addition to conventional panels, there are several styles that are virtually indistinguishable from conventional tile and shingles. Metal roofing is available in a wide array of colors as well, making it easy to find an option that best suits any style of residential home.

The odds of a lightning strike hitting a metal roof are the same as any other roof, regardless of material. In the event that there is a lightning strike, however, metal roofing will not ignite and catch fire since it is not combustible.

Far from it. Studies conducted by the Insurance Institute for Business & Home Safety (IBHS) have found that metal roofing is far less likely to be punctured by hail than conventional asphalt shingles, withstanding even golf ball-sized hailstones with only cosmetic damage.

Metal roofing consistently outperforms shingles when it comes to resisting harsh elements. In addition to being fire and hail resistant, metal roofs are also effective against extreme winds. Many insurance companies recognize the durability of metal roofing, offering discounts for structures with metal roofs.

Definitely not! Like most building materials, metal roofing is available in varying levels of quality. Homeowners should be sure to ask their contractor or supplier what substrate and paint coating they are recommending for their home. Galvalume steel substrates and Kynar 500® (PVDF) coatings provide the best long-term peformance. Click here for facts about substrates and coatings.

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Find a Distributor/Contractor Near You

Whether you’re building a new home or planning renovations, a metal roof can deliver long-term cost savings and comfort. To explore your options and find the product that meets your aesthetic and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help make your dream home a reality.

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