Modeling shows green roofs can cool cities and save energy::Extensive greenery coverage on building rooftops could significantly reduce temperatures at the city scale and decrease energy costs, according to a new study.

  • Whelks_chance@lemmy.world
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    9 months ago

    Interesting that they note that the installation and upkeep are expensive. I wonder if they’ve factored the upkeep into the energy expenditure. Flat roofing is far worse than a pitched room for needing replacement etc.

    Basically, it sounds good, but the research needs to consider the full lifecycle of these projects.

  • TheGrandNagus@lemmy.world
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    9 months ago

    Also looks great.

    Buuuut it’s expensive and needs constant maintenance. It’s also a greater risk, there have been cases of trees being blown off of buildings like this, although if properly anchored with shitloads of netting this shouldn’t be an issue.

    I do wonder if it’s more practical to just put solar panels there though

    • Pretzilla@lemmy.world
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      9 months ago

      They work great together. Bifacial PV panels let enough light through for growing, and make excellent vertical edge barriers.

  • nexusband@lemmy.world
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    9 months ago

    Spain and Portugal laughing from their benches on their roofs…surrounded by lush green plants…