Today’s metal roofing materials come in many designs, some of which resemble “traditional” roofing styles such as slate, wood shake, shingles, barrel tile and more. The most factor in these materials isn’t how they’re shaped but how they’re installed.

Interlocking panels that connect on all four sides offer the greatest resistance to wind and are more secure than panels that simply overlap.

Roofing material with full interlocks costs more to make, but it pays off with decades of top performance.

In addition, concealed (vs. exposed) panel fasteners allow for expansion and contraction of the panels without causing excess wear.