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2. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   Metal roofs emissivity is better at reflecting solar radiation at 10%–75% depending on the color choice, compared to asphalt roofs that reflect 5%–25% depending on their color. Over the lifetime of the metal roof they keep 95% of the reflective capacity compared to other roof types that lose 20%–40% of their reflective capacity.

3. Copper in architecture - Wikipedia

   en.wikipedia.org/wiki/Copper_in_architecture

   Copper roofing in rural atmospheres corrodes at rates of less than 0.4 mm (1 ⁄ 64 in) in 200 years. [27] Unlike most other metals, copper does not suffer from underside corrosion that can cause premature failures in roofing. With a copper roof, supporting substrates and structures usually fail long before the copper on the roof. [11]

4. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Copper roofs have a high initial cost but very long lifetime: tests on European copper roofs from the 18th Century showed that, in theory, copper roofs can last one thousand years. [6] Another advantage of copper roofing systems is that they are relatively easy to repair. Standing-seam metal roof with concealed fasteners.

5. Copper cladding - Wikipedia

   en.wikipedia.org/wiki/Copper_cladding

   Depending on metal prices, copper may be a very cost-effective cladding and roofing material. With good building design, materials choice and craftsmanship , copper roofing or facade cladding may be cheaper than slates or concrete tiles, especially when one takes into account the lasting colour , durability, maintenance -free and lightweight ...

6. Terne - Wikipedia

   en.wikipedia.org/wiki/Terne

   Terne metal can last 90 years or more if the paint is maintained. Terne-coated stainless steel (TCS II or Roofinox), or copper is commonly used to replace terne metal roofs as either material will outlast terne metal. Terne-coated stainless steel roofing can last 100 years or more unpainted; copper roofing can last 50 years or more unpainted ...

7. Reflective surfaces (climate engineering) - Wikipedia

   en.wikipedia.org/wiki/Reflective_surfaces...

   The Copper Development Association has conducted several studies, beginning in 2002, which examined the elevated temperatures of wiring inside conduits at and above various color roof materials. The findings concluded that the temperatures above cool roofs were higher than those of a darker colored roof material.