Ganot Nursing Home | Whitehall, Ohio

Inter-Lock IL20

Inter-Lock IL20 is a structural panel which is snapped together during installation.The panel is an integral interlocking system by design which installs in one direction from a given starting point. A double male starter panel is available (for a minimal setup fee) and may be installed in the middle of a roof area to achieve a symmetrical layout. Inter-Lock is a very flexible panel which works well with a wide range of building designs.

IL20 Profile

DynaClad® 70% Full Strength PVDF Paint Finish

Choice of over 32 Colors




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Roof Assemblies

Inter-Lock IL20 can be applied over various roof assemblies including:

  • rigid insulation (utilizing a bearing plate under each panel clip spaced 48″ o.c., max.) over 22 ga. corrugated metal deck
  • plywood sheathing
  • nail base insulation
  • steel deck
  • various other solid substrates

Uses & Applications

Product uses include roofs with slopes as low as 3:12, vertical fascia, equipment screens, mansards, and wall panels. This system may also be
installed on tapered roof areas.

*Note: Metallic paint finishes are “directional” and are not recommended for “double male” panels.

Product Offerings

24 ga., 22 ga. Steel, and .032, .040 Aluminum

  • IL2012 with 12” o.c. seams
  • IL2016 with 16” o.c. seams
  • IL2018 with 18″ o.c. seams

16, 20 oz. Copper

  • IL2012 with 12″ o.c. seams
  • IL2018 with 18” o.c. seams

Performance Tested

  • UL-580 Wind Uplift
  • ASTM E1592 Uniform Static Air Pressure
  • ASTM E1646 Water Penetration
  • ASTM E1680 Air Leakage


  • Optional Factory Applied Non-Curing Sealant: For superior watertightness
  • Engineered Snap-Together Design for easy installation
  • Symmetrical Visual Aesthetics: Providing a non-directional appearance
  • Clip allows for unlimited thermal expansion and contraction
  • Continuous Interlocking Seam: No seam disengagement
  • Anti-Siphoning Seam Design: Prevents water infiltration
  • Continuous Rollformed Lengths: Eliminates need for panel lap joints.
  • Total System Warranties Available: For total confidence

AIA Continuing Education

DMI is committed to providing you with high-quality expert-level education in accordance with the AIA/CES standards. The courses we offer are designed to meet the needs of architects and typically run one hour in length. All Attendees will earn 1 Learning Unit. Some of the courses offered will meet the Health, Safety, and Welfare (HSW) requirements as well as the Green Building Certification Institute (GBCI) credits.

information on available courses

Our Warranties are Second to None

DMI total system warranties protect "all aspects" of your metal envelope system. Whether that be the watertighness, the material or the finish. When looking at the warranties for your system it is important to note that not all warranties are created equal. Be sure to read the fine print to find out about any limits or exclusions. Are you truly getting a warranty or is it just a glorified maintenance agreement? Is the warranty covering all aspects of your Metal Envelope system? Is it guaranteeing that your project is being installed with the best quality? With DMI Total System Warranties you can feel confident that you are getting the best quality and guarantee in the industry!

Browse Our Warranties