Shingles need to be replaced every 10-30 year depending on wear and their type. It just seems so uneconomical and such a pain.
I get that metal conducts heat more easily, but couldn’t you just let a thin layer of moss grow on your metal roof and call it a day? Even if they dry out in the summer, I doubt metal + thin layer of dirt would conduct heat more than black shingles
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In some countries it’s literally “planning laws” (in countries like the uk especially) that when you apply for planning permission the materials to be used, brick colour, roofing type, window formats, even paint finishes etc all need to be specified. In conservation areas you may have no choice at all in the materials used, if you have a listed building only like for like replacements can be used when extending or modifying or repairing a building.
Again in many countries buildings have to be erected “to code” where the materials have to meet certain durability specifications and insulation standards and often what you see in the “built environment” is the cheapest way of achieving the standards required rather than any individuals preferred option. House builders often build properties as cheaply as possible to maximise their profits.
So it may not be the choice of the homeowner or architect it may be the body responsible for the protection of the beauty of the “built environment” or local “insulation/durability” standards that these similarities exist.
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