The Roofing Book

Materials / Standing-Seam Metal Roof

Standing-Seam Metal Roof

UL 2218 Class 4

Interlocking vertical metal panels with concealed fasteners and raised seams, typically steel or aluminum. A premium, long-life steep-slope and low-slope system.

Category family
metal
Typical lifespan
40–70 years
Typical wind resistance
rated assemblies commonly to 140+ mph
Typical fire rating
Class A
Max impact class
UL 2218 Class 4
Weight per square
50–150 lbs
Cost band
$$$$
Slope suitability
both
Typical warranty
30–50 years
Pros
  • very long service life
  • excellent wind and fire performance
  • recyclable
  • sheds snow and resists ignition
Cons
  • high installed cost
  • can dent from large hail
  • requires skilled installers
  • oil-canning aesthetics on flat pans
Colorado notes
  • hail_performance: resists puncture but large Front Range hail can cosmetically dent panels
  • altitude_uv: durable coatings (PVDF) hold color under intense high-altitude UV

Manufacturers

McElroy Metal ATAS International Berridge Manufacturing Company Elevate Englert Metal Sales Manufacturing Corporation Petersen Aluminum Isaiah Industries

Named products

238TMcElroy Metal ATAS Colonial SeamATAS International ATAS Dutch SeamATAS International ATAS Field-LokATAS International ATAS PC SystemATAS International Berridge Cee-LockBerridge Manufacturing Company Berridge Double-Lock Zee-LockBerridge Manufacturing Company Berridge Tee-PanelBerridge Manufacturing Company Berridge Zee-LockBerridge Manufacturing Company Elevate UNA-CLAD UC-3 Roofing PanelElevate Englert A1000Englert Englert A1101/1120Englert Englert A1301Englert Englert S2400Englert Englert S3000Englert Englert Series 2000Englert MaximaMcElroy Metal Medallion-LokMcElroy Metal MeridianMcElroy Metal Metal Sales Image IIMetal Sales Manufacturing Corporation Metal Sales Magna-Loc 180Metal Sales Manufacturing Corporation Metal Sales Vertical SeamMetal Sales Manufacturing Corporation Petersen PAC-CLAD PAC T-250Petersen Aluminum Petersen PAC-CLAD PAC-150Petersen Aluminum Petersen PAC-CLAD Snap-CladPetersen Aluminum Petersen PAC-CLAD Tite-LocPetersen Aluminum Petersen PAC-CLAD Tite-Loc PlusPetersen Aluminum Universal Standing SeamIsaiah Industries

Related guides

Asphalt vs. Metal vs. Tile Wind & Fire Ratings New Roof Cost Class 4 Impact-Resistant Shingles Class 4 Insurance Discounts Metal Roofing in Colorado

Sources