McElroy 138T & 238T
Retrofit Standing Seam Metal Roofing

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Retrofit Standing Seam Metal Roofing is an important product for All-Star Roof Systems. While standing seam roofing systems have been used for generations, 138T and 238T panels feature technological advances in roofing that set a new standard for retrofit standing seam performance. As a result, we classify 138T and 238T systems as symmetrical standing seam systems and offer many advantages including patented recover solutions featuring the industry’s best method to recover existing metal or shingle roofs.

Above all, we provide steel standing seam metal roof systems with life expectancies of 40 years. Also, we’ve enhanced our performance and testing to ensure our products can meet the demands of Hurricane Force Winds. We also design our standing seam metal roof products to be installed to stay attached through even the most devastating of conditions.

In addition, the steel roofing systems we offer are all interlocking, non-exposed fastener systems. In other words, they provide the most protection for your home from the elements. Furthermore, these products are available in a variety of colors. We can typically install these systems over an existing composition roof. If you need to remove your old roof, we will see to it that it is recycled.

All of our products are manufactured in America because we support helping to build a healthy economy. While importing steel and aluminum from other countries can be less expensive, the quality is sometimes compromised.

 

McElroy 138T & 238T

 

 

McElroy 138T & 238T

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While standing seam roofing systems have been used for generations, 138T and 238T panels by McElroy Metal feature technological advances in roofing that set a new standard for standing seam performance. As a result, 138T and 238T systems are classified as symmetrical standing seam systems. These standing seams offer many advantages/ For instance, they include patented recover solutions featuring the industry’s best method to recover existing metal or shingle roofs. We also mechanically seam our 138T and 238T panels along with the seam caps.

  • Ease of installation
  • Individual panel replacement capabilities
  • Watertight seam design
  • No laps improve weather tightness
  • Outstanding recover solutions
  • Patented Metal-Over-Metal recover with 238T
  • Patented recover solution of shingles with 138T
  • 138T minimum slope: 2:12
  • 238T minimum slope: 1/2:12
  • 238T subject to prior approval, 1/4:12 may be acceptable
  • Can install 138T over a solid deck
  • Can install 238T over a solid deck or open framing
  • 138T & 238T are mechanically seamed profiles

138T & 238T

  • Uplift Test – UL580 Class 90, UL 1897 and ASTM E1592
  • Fire Rating:  UL Class A
  • Impact Resistance:  UL Class 4
    FM Class 1-SH

238T Only

  • Uplift Test: FM 4471
  • Air Infiltration: ASTM E1680
  • Water Infiltration: ASTM E1646
  • Static Water: FM 4471 Appendix G, ASTM E2140
  • Texas Department of Insurance Approval: RC-270
  • Florida State Approval: FBC #16606.1, 16606.2, 16606.3
  • Miami Dade Approval: NOA #15-1216.03
  • Panel height & width:
    • 138T: 1 3/8″ x 12″ or 16″
    • 238T: 2 3/8″ x 16″, 18″, 24″
    • 238T 24″ Panel formed on-site only
  • Panel Configurations:
    • 138T: flat, striated, plank & pencil ribs, plank, minor ribs
    • (plank & pencil rib recommended)
    • 238T: flat (16″ & 18″ only), striated, plank & pencil ribs, plank, minor ribs
    • (plank & pencil rib recommended)
  • Coating:
    • – Kynar 500® (PVDF)
  • Substrate:
    • – Standard 24 GA Galvalume®
    • – Optional 22 GA Galvalume
    • – Optional .032 and .040 aluminum
    • – Optional 16 oz and 20 oz copper
    • (Houston Plant Only)
  • 138T & 238T Manufacturing: factory, jobsite roll-formed, curved on-site
  • Can curve 138T panels (16” width only)
  • Can curve 238T panels (16”, 18” widths only)
  • 138T, 238T, and Multi-Span Clips are curved onsite by McElroy curving technicians
  • Minimum Radius:
    • 138T – 8’ radius
    • 238T – 24’ radius
    • Multi-Span Clips – 35’ radius
  • Maximum length on Multi-Span clips is 30’
  • 138T flat panels will curve naturally on a radius of 150’ or greater
  • 238T flat panels will curve naturally on a radius of 225’ or greater

 

 

Retrofit Roofing Solution

For roofs with irreparable degradation, All-Star Roof Systems provides retrofit roofing. We also do our retrofit solutions by using 138T and 238T products. Regardless of what product you choose, you can count on All-Star Roof System’s single-source accountability for roofing materials and installation services.

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