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      Trap-Tee Standing Seam Roof Panel

      Symmetrical, mechanically seamed trapezoidal panels engineered for high uplift performance, full panel replaceability, and fast installation on large-scale, low-slope roofs.

      McElroy Metal’s 2 ¾” Trap-Tee profile delivers structural strength and long-term weather protection, while the symmetrical design allows installers to start or stop anywhere—and replace individual panels without disturbing adjacent ones

      Renderings & Profiles

      Color Charts

      Great for:

      walls-icon
      WALLS
      roofs-icon
      ROOFS
      residential-icon
      RESIDENTIAL
      commercial-icon
      COMMERCIAL
      Trap-Tee Panel
      Trap-Tee Panel Profile
      Trap-Tee - Mechanically Seamed Standing Seam Specs at a Glance
      Panel Type
      Rib Height
      Major Rib On Center
      Cover Width
      Factory Panel Length
      Onsite Forming Available
      Substrate/Gauges
      Installation
      Finishes
      Minimum Slope
      Concealed fastener standing seam
      2 3/4"
      18”, 24”
      18”, 24”
      Up to 40'
      Yes
      24 GA Galvalume®
      Solid Deck or Open Framing
      Kynar 500® (PVDF); Galvalume® Plus (acrylic-coated)
      1/4: 12

      Trap-Tee Ideal Applications

      • Large-scale commercial, industrial, and institutional buildings with expansive roof areas.

      • Low-slope roofing demands tested uplift resistance and superior weather protection.

      • Projects demanding long-term serviceability, including the ability to replace panels individually.

      • Retrofit and new construction where flexibility and maintenance access are key.

      See 3D Textures Here
      Trap-Tee
      Trap-Tee Panels

      Trap-Tee Top 4 Benefits

      1. Field-Replaceable Panels: Symmetrical design allows individual panels to be replaced anywhere on the roof without cutting or removing adjacent panels—simplifying long-term maintenance and repair.

      2. Flexible Start/Stop Installation: Installers can start or stop panel runs anywhere on the roof, giving crews greater flexibility around weather, sequencing, or project phasing.

      3. Superior Structural Performance: The 2¾" trapezoidal rib profile provides high spanning capability and exceptional wind uplift resistance for large, open-framed structures.

      4. Enhanced Weathertight Seal: Factory-applied sealant runs continuously past each clip, creating a watertight seam that performs in the most demanding conditions.

      Color Charts

      Architectural Color Chart

      CAD Drawings

      Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Hi-Side Tie-In Trap-Tee Floating Ridge Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed High Eave Trap-Tee Fixed Hi-Side Tie-In Trap-Tee Fixed Ridge Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Curb Install - Nail Base Trap-Tee Curb Install - Plywood Trap-Tee Curb Install - Purlin Trap-Tee Curb Install - R.I. / Metal Deck Trap-Tee Alternate Dektite Install - Nail Base Trap-Tee Alternate Dektite Install - Plywood Trap-Tee Alternate Dektite Install - Purlin Trap-Tee Alternate Dektite Install - R.I. Metal Deck

      PDF Drawings

      R-Seal® Side Lap Lap Detail Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Eave Trap-Tee Floating Eave w/ Gutter Trap-Tee Floating Hi-Side Tie-In Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed Hi-Side Tie-In Trap-Tee High Eave Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Ridge Trap-Tee Floating Hi-Side Tie-In Trap-Tee Floating Ridge Trap-Tee Fixed Eave Trap-Tee Fixed Eave w/ Gutter Trap-Tee Fixed High Eave Trap-Tee Fixed Hi-Side Tie-In Trap-Tee Fixed Ridge Trap-Tee Rake Off-Module Trap-Tee Rake Trap-Tee Rake Tie-In Off-Module Trap-Tee Rake Tie-In Trap-Tee Curb Install - Nail Base Trap-Tee Curb Install - Plywood Trap-Tee Curb Install - Purlin Trap-Tee Curb Install - R.I. / Metal Deck Trap-Tee Alternate Dektite Install - Nail Base Trap-Tee Alternate Dektite Install - Plywood Trap-Tee Alternate Dektite Install - Purlin Trap-Tee Alternate Dektite Install - R.I. Metal Deck

      English Installation Manuals

      Trap-Tee Installation Manual

      Brochures/Flyers

      Trap-Tee Flyer Insul-Tee Trap-Tee Flyer 2025 Product Catalog

      Product Data Sheets

      Trap-Tee Product Data Sheet

      Product & Trim Information Books

      Trap-Tee Product Information Book

      R-Seal

      R-Seal® Material Data Sheets R-Seal® Approval Drawing R-Seal® MBI Combined Details Drawing R-Seal® Panel Cross Sections R-Seal® Technical Bulletin R-Seal® VRR+ Facing Painting Spec Lamtec

      Specifications

      Trap-Tee

    • Trap Tee

      Customize (Recommended) Download All

      • Customize your submittal package Trap Tee

      Click on your desired documents below to select them for your package.

      General Product and Warranty Information

      Panel Load Tables w/Section Properties and Testing

      UL 580 Construction Numbers

      Trap-Tee Technical Bulletin (Pending)

      Approvals

      Trap Tee FM Approval

      Panel Load Tables w/Section Properties

      Trap-Tee Load Tables 18" 22 Ga. 50 KSI Trap-Tee Load Tables 18" 24 Ga. 50 KSI Trap-Tee Load Tables 24" 22 Ga. 50 KSI Trap-Tee Load Tables 24" 24 Ga. 50 KSI

      Miscellaneous Information

      99-418-23 Curb Requirements for WTW

      Finish and Substrate Warranties

      Standard Galvalume® Standard Fluropon® Kynar 500® PVDF with Galvalume® Substrate Project Specific Galvalume® Project Specific Fluropon® Kynar 500® PVDF with Galvalume® Substrate

      Weathertightness Warranties

      WTW - Joint NRL (Certified Installer) WTW - Joint Sample WTW - Single Source NRL Sample (Certified Installer) WTW - Single Source Sample (Certified Installer)

      Compare our standing seam panels using the tool below.

      For information on all McElroy Metal products, visit our full product library.


      Panel
      Seam Type
      Rib Height
      Panel Widths
      Minimum Slope
      Install Substrate
      Clips
      Substrate / Gauges
      Coating
      Notable Approvals / Tests
      Trap-Tee - Mechanically Seamed Standing Seam
      Mechanically Seamed Standing Seam
      2 3/4"
      18”, 24”
      1/4: 12
      Solid Deck or Open Framing
      Standard Clip; Super Clip; Tall Clip; Tall Super Clip; Standard Multi-Span Clip; Tall Multi-Span Clip
      24 GA Galvalume®
      Kynar 500® (PVDF); Galvalume® Plus (acrylic-coated)
      ASTM E1592; FM 4471; ASTM E1680/E1646

      Components Gallery

      Trap-Tee Seam

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      Trap-Tee Seam

      ML-90 Low Fixed Clip (Utility Fixed & High Fixed Clips also Available)

      Trap-Tee Seam

      caption

      Trap-Tee Seam

      ML-90 Low Fixed Clip (Utility Fixed & High Fixed Clips also Available)

      Weathertightness Warranties

      If your project requires a Weathertightness Warranty and you don’t already have a job specific Pre-Approval Form issued by McElroy Metal, click the button below to get started.

      Learn More

      Shop Drawing Service

      Running short of time to complete your own shop drawings? McElroy Metal can help. Click the button below to provide us some basic information and we’ll be in touch soon to discuss your project specifics.

      Contact Us

      Download Shop Drawings

      If you’re creating your own shop drawings, click the button below to gain full access to our CAD and PDF Files.

      View Drawings
      Peachtree Solar-501-1

      Notes & Manufacturing Locations

      • Manufactured in Houston, TX

      • Seam caps include factory-applied sealant

      • Best suited for simple sloped roofs without dormers, hips, valleys, or other special conditions.

      • 18" Factory Produced-40' Maximum Length; 18" & 24" Site Formed

      • Additional Material Options: (Note: Minimum quantity and additional lead-time may apply)

        • 22 GA Galvalume®

        • 20 GA Galvalume®

      • Oil canning is a natural occurrence in metal panels and not a cause for rejection.

      McElroy Logo Emp Ownd Opt1_BLK-RED

      Why Choose McElroy Metal

      McElroy Metal is an employee-owned manufacturer with more than six decades of experience producing high-quality metal roofing, wall systems, and substructural components. Our nationwide manufacturing and service center network ensures consistent availability, responsive support, and dependable delivery. Built on a culture of craftsmanship and partnership, our products are engineered for long-term durability and trusted performance on projects of every size.

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      R-Seal®

      r-seal-logo

      R-Seal’s continuous insulation system reduces heat transfer through the building's framing. Traditional insulation systems allow more heat to be conducted through the building's framing.

      CONTINUOUS INSULATION SYSTEM

      R-Seal® Advantages

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      Offers 7.5 per inch R-value

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      R-Seal is designed to be installed on top of Open frame metal buildings with purlins spaced 5’ O.C.

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      Rigid urethane board with shiplap side joints and waterproof facer

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      Tape seal flap makes a watertight joint between boards

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      Continuous R-Value of 7.5 per inch (no break over purlins)

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      42” wide board x up to 53’ long for super fast installation

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      With R-30 (4”) YOU CAN WALK ON IT!

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      Air-tight and water-tight after installation

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      Trades go right to work after installation in the building compressing the construction schedule

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      Ideal for new construction or removing and replacing a standing seam

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      Paintable

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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.

      Find a Contractor

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      Frequently Asked Questions

      The questions below address common considerations and help guide product selection for your project.

      What makes Trap-Tee different from traditional trapezoidal panels?
      Trap-Tee features a symmetrical panel profile, allowing installers to start or stop anywhere on the roof and replace individual panels without disturbing adjacent ones—something traditional trapezoidal systems can’t do.
      Can Trap-Tee be used on low-slope roofs?
      Yes. Trap-Tee can be installed on slopes as low as ¼:12 when mechanically seamed, providing reliable performance for large-scale commercial and industrial roofs.
      What finish options are available?
      Trap-Tee panels are coated with Kynar 500® (PVDF) for superior long-term color retention and weather resistance. For non-painted 24 gauge applications, we offer Galvalume® Plus (acrylic-coated).
      Is Trap-Tee suitable for retrofit applications?
      Yes. Trap-Tee’s symmetrical design and replaceable panels make it a smart choice for retrofit projects where accessibility and longevity are priorities.
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