This isn't aluminum-vs-something — it's two aluminum profiles. The right pick depends on your home's style and roof shape.
| Factor | Interlock Shingle/Slate/Shake | Standing Seam |
|---|---|---|
| Look | Traditional slate, shake, tile texture | Modern vertical lines |
| Fasteners | Concealed 4-way interlock | Concealed clips |
| Best roof types | Complex, multi-facet roofs | Simple, long, steeper planes |
| Texture | Dimensional | Flat/ribbed |
| Material | Aluminum | Aluminum |
How to choose
Traditional New England homes — capes, colonials, Tudors — usually suit a slate or cedar-shake profile. Modern or agricultural designs and long simple rooflines suit standing seam. Complex rooflines with many valleys and dormers are often easier and cleaner with an interlocking shingle.