Metal roofing in St. Louis: what a 50-year roof actually buys you

Start with the lifespan. An asphalt shingle roof in our climate is a 20 to 30 year product that quietly loses value as it ages. A properly installed metal roof carries a performance expectation of 50 or more years. That difference changes how you think about the price per year of owning the roof, which is the number that matters more than the bid.

Then the energy math. Metal reflects solar radiant heat instead of absorbing it, which matters in a St. Louis July, and industry studies put the cooling cost reduction at 10 to 25 percent. The panel itself has a low insulation value, so the install detail is what earns the savings: metal set over rigid foam insulation, or with a dead-air space between the panel and the roof deck.

The question every homeowner asks: will it rust? Bare metal does. A modern metal roof is not installed bare. Galvanized steel and factory-applied protective coatings resist oxidation for decades, and aluminum resists corrosion with almost no maintenance at all. Metal is also the rare roofing product with an honest environmental story: 25 to 95 percent recycled content depending on the material, and 100 percent recyclable when its life as a roof ends.

On resale, a contemporary metal roof can improve a home's value by 1 to 6 percent compared with an asphalt-shingled equivalent, and homeowners recoup an average of roughly 86 percent of the cost. Metal is fire resistant, which has been known to lower insurance costs in our market. None of that shows up in the initial bid, which is the only place metal looks expensive.

Most of the residential metal work we install in St. Louis and St. Charles is standing seam: concealed fasteners, clean vertical lines, and the profile most custom builds ask for. And if the up-front number is what gives you pause, that is a solvable problem. Our financing options turn a 50-year roof into a monthly payment.