Metal Roofing Standing Seam

Interlock® Standing Seam Roofing

Classic weather-tight panel roofing system.

Interlock® Standing Seam Roofing is a fully interlocking system. Its unique design profile forms a weather-tight unit, and unlike some other types of panel metal roofs, no rivets or screws are exposed on the surface of the panels.


  • lifetime limited warrantyLifetime Limited Warranty
  • Energy Star® Rated (US Only)
  • Curbside appeal
  • Weather and wind resistant
  • Low maintenance
  • 10 designer colors
  • Lightweight
  • Superior strength / Durability
  • Alunar® Coating embedded with TEFLON® surface protector
  • Non-combustible "Class A" Fire Rated available
  • No more cracking or splitting
  • Full interlocking connection system
  • Hail Resistance; Exceeds UL Standard 2218 Class 4, Impact Standard for Impact Resistance



Interlock® Slate roofs are exclusively protected for a lifetime by Alunar® embedded with TEFLON® surface protector for ultimate durability and protection.

  • energy star s

    Qualified Energy Star® Roofing System

    All Interlock® Metal Roofing Systems are Energy Star® rated in the United States. Please see the Energy Star® Reflective Values for additional information. When installed properly, this product will help reduce energy costs. Actual savings will vary based on geographic location and individual building characteristics. Consult your product manufacturer, roofing contractor, or call 1-888-STAR-YES (1-888-782-7937) for more information.

  • Alunar® Coating System embedded with Teflon® surface protector

    teflon surface protector sThis advanced and resistant coating finish gives your roof maximum protectionfrom fading, scuffing, stains, moisture and organic debris. That means your roof will look vibrant, beautiful and elegant for years-to-come. The unique 8-layer coating was developed to withstand the extreme weather conditions including snow, hail, wind, driving rain and our hot summers.

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  • osb sheathing

    Sheathing for the roof should be ½" minimum or closely fitting boards.
  • underlaymentThe entire roof area should be covered (prior to shingle application) with synthetic roofing underlayment.

  • starter flashing detail
    Trim seam locks with Interlock slate. No exposed fasteners.
  • end wall detail
  • valley detailProvides smooth, obstruction-free path for precipitation, no projections to catch debris or snow. Slate panels lock into valley lock on each side.
  • ridge venting detail
    Are also available as an option for additional venting. Ridge venting is installed underneath the ridge caps.

Specification Manual

All of our products showcase our total commitment to protect and beautify your home for life,  and to safeguard the environment.  Our roofing systems will provide you with a lifetime of value.