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Bare Steel
R Panel/PBR Panel
Bare Cold Rolled Rusted Roofing

Material does not arrive pre-rusted. Panel will rust naturally with exposure to the weather.
  • Product Data


    PBR Panel Profile Pic
    Material Type:
    PBR Panel (Purlin Bearing R Panel)

    Rib Distance (Pitch):

    Rib Height:

    Coverage for Roof and Wall Application:

    Available Gauges:
    A606-4 (aka Corten)

    Bare Cold Rolled
    22, 24

    A606-4 (aka Corten)
    Bare Cold Rolled


    Panel Length:
    1' to 52'

    Recommended Minimum Roof Slope:

    Installation over a solid substrate.
    Use a high temperature roofing underlayment.
    Bead mastic on the overlap if used for a roofing application.

  • Product Specifications


  • Install Guide

    Install Guide for Download

    PBR/R-Panel Installation Guide

  • Trim/Flashings

    Trim and Flashings

    Please click here to see available trim and flashings for this product.
  • Screw Placement & Panel Sidelap

    Screw Placement & Panel Sidelap

    Please click here to download the screw placement and panel sidelap file.
  • FAQ

    Frequently Asked Questions

    For a list of frequently asked questions about this product and more, please click here.
  • Warranty


    There is NO Warranty for A606-4 and bare cold rolled steel products. If you need a warranty than please look at our painted rusted roofing options.
  • Engineering Info

    Engineering Info

    A606-4 and bare cold rolled steel are architectural products only. Load charts, uplift, and engineering is NOT available for these finishes. The load that it carries when you install the product is not the load it will carry in the future as it rust.
  • CAD

    CAD File for Download

  • Product Data Sheet

    Product Data Sheet

    Please click here to download the product data sheet.
  • Roofing Underlayment
    Click here to view roofinig underlayment options.
  • Request a Quote

PBR/R-Panels | Metal Roofing & Metal Wall Panels
Bare Cold Rolled Steel

R Panel in bare cold rolled steel is the nicest panel available for the least amount of money. A metal roof installation on a home or business is a smart investment in regions with volatile weather. Persistent rain and wind can damage typical shingled roofs, requiring costly repairs almost every year. Bare PBR Panel metal roofing and siding, often referred to as a Purlin Bearing Rib (PBR) Panels, are a low-maintenance, durable alternative to conventional roofing and adds extra protection against the elements by including a purlin bearing leg that overlaps between panels sealing out moisture and wind.

For construction projects that require low cost metal roofing materials, bare steel roofing offers several exposed fastener metal roofing panel options that is suitable for commercial, industrial, agricultural, and residential settings. Our bare steel R-Panels are easy to install using self-drilling fasteners and can also be used as siding for wall, interior, and linear panel applications. R-panel is great for self-storage buildings, as equipment screens, for architectural accents, as decorative fencing, as a textured ceiling, or even as an interior wall treatment. In many cases, you will see our metal PBR Panels being used horizontally in the architectural community and positioned vertically in the commercial and agricultural industries. No matter how you plan to use your metal roofing panels, feel comfortable knowing, when you order from metal from roofing, there is no middle man. We are the manufacturer of bare cold rolled metal roofing and siding. We sell direct to all general contractors, roofing companies, and homeowners.


  • 22 Gauge Minimum
  • 36” Coverage means fewer panels to handle and install, saving time and money. There is no loss of material for the panel side lap.
  • Bare R Panel has a unique look and naturally oxidizing finish that make it especially desirable for many architectural projects.
  • Matching trim and flat stock available for bare PBR Panel.
  • Galvanized or stainless steel screws in a Koko Brown color are available to match bare steel finish.
  • Fiberglass skylight panels are available to match the profile of this panel.

Recommendations and Cautions

  • Bare Steel and A606-4 performs best in environments with low humidity
  • Load calculations and load tables DO NOT APPLY TO ANY BARE STEEL OR A606-4 PRODUCT.
  • Installation over a solid substrate.
  • Minimum roof slope 3:12 recommended.
  • Underlayment should be a HIGH TEMPERATURE UNDERLAYMENT.
  • Not recommended near salt spray environments and frequent rain locations as it will shorten the life expectancy of the products.
  • Acid washing will degrade steel performance.
  • Rust runoff will likely stain the surrounding surfaces.
  • Material does not arrive pre-rusted. Panel will rust naturally with exposure to the weather.

Ordering Information

Excellent customer service is important to us. When you place your order with Western States Metal Roofing you can expect the following:
  • Knowledgeable Sales Associates - Helpful and friendly sales associates that will answer all of your questions.
  • Made to Order Panels - We cut your metal roofing and metal siding panels to the exact lengths needed.
  • Fast Turnaround - Typical two week maximum lead times. However, if you need it quicker, we normally can accommodate just about any completion schedule.
  • Shipping Convenience - We have route trucks that service anywhere in the USA and Canada.
  • Affordable Shipping - Immediate and inexpensive shipping.

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