Most standing-seam metal residential roofs in the Tampa-Sarasota corridor are one of three metals. The selection is usually driven by budget first and aesthetic second, but the longevity differences are meaningful enough to deserve a closer look.
Galvalume
The default. A steel substrate coated with a zinc-aluminum alloy, then typically PVDF-painted on the visible side. Manufacturers include Drexel Metals, Berridge, Petersen.
- Cost: $14-22 per square foot installed
- Lifespan in coastal Florida: 40-50 years
- Color: unlimited via PVDF coating; expect 30-year color warranty
- Best when: a specific color is required, or budget caps below copper/zinc
Aluminum
Less common but a legitimate choice in immediate coastal applications.
- Cost: $18-26 per square foot installed
- Lifespan in coastal Florida: 50-60 years
- Color: PVDF-coated, similar palette to Galvalume
- Best when: the home is within 1,000 feet of the water and the cost premium over Galvalume is acceptable
Aluminum is functionally immune to salt corrosion in its bulk material. The trade-off is that aluminum is softer and easier to dent during installation and during hail. It also reads slightly different from Galvalume at certain pitches and lights — the metal beneath the paint is closer to the surface.
Copper
The premium specification.
- Cost: $35-55 per square foot installed
- Lifespan in coastal Florida: 75+ years
- Color: natural copper; develops patina over 20-40 years
- Best when: the architecture warrants permanent material and the budget supports it
We have written separately about copper versus zinc. Briefly: copper is the right choice when the architectural language is historical or estate; zinc is the right choice on contemporary work.
What we recommend most often
In our project mix, Galvalume PVDF runs about 65%, copper about 20%, zinc about 10%, aluminum about 5%.
The Galvalume share is high because most projects have budgets that align with it and the PVDF finishes available today read meaningfully better than they did ten years ago. A Drexel Custom Bone or a Berridge Cocoa Brown on a contemporary coastal home in Sarasota looks correct and ages well.
A note on color matching
PVDF finishes from different manufacturers are not identical even when the color names are similar. Specifying "Drexel Custom Bone" is different from specifying "Bone — manufacturer's discretion." If you are matching a neighboring building or an existing accent, request a physical sample from the specific manufacturer before committing.
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