Comment on Ultra-white ceramic cools buildings with record-high 99.6% reflectivity

• Potatofish@lemmy.world ⁨11⁩ ⁨months⁩ ago

  Is your roof flat? Many. /s

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  • maniii@lemmy.world ⁨11⁩ ⁨months⁩ ago

    I can guarantee that a Rooftop Terrace garden cuts down almost 40% to 60% heat ever reaching the ceiling. If you have enough cover with smaller plants under larger bushes/shrubs/small trees then there will be a cool breeze around the terrace, provide nesting places for small birds and animals, a pocket of nature in an otherwise concrete heat jungle.

    The problem is who can afford to maintain the Terrace garden is the bigger challenge. Constantly checking soil, composting, watering, maintenance and just time+expense is usually beyond a lot of folks.

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    • phx@lemmy.ca ⁨11⁩ ⁨months⁩ ago

      It would be cool to bring back for apartment buildings though

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      • Kusimulkku@lemm.ee ⁨11⁩ ⁨months⁩ ago

        Going back to flat roofs and adding plants and soil to the mix sounds like a recipe for some major water leakage issues.

        Would be cool to have rooftop gardens though

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    • Th3D3k0y@lemmy.world ⁨11⁩ ⁨months⁩ ago

      Green roof, looks cool, usable space, and helps with cooling. Just damned expensive.

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• 0ddysseus@lemmy.world ⁨11⁩ ⁨months⁩ ago

  Trees? Not many. Grasses, herbs, wildflowers, and shrubs? Tons of them. And you can pretty easily retrofit over an existing sloped roof. And the weight is no more than a tiled roof.

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  • Kusimulkku@lemm.ee ⁨11⁩ ⁨months⁩ ago

    Wetness could pose a problem to the structure

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    • 0ddysseus@lemmy.world ⁨11⁩ ⁨months⁩ ago

      Not if you use a waterproof base layer. This isn’t some theoretical thing, its tried and tested technology in common use

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      • Kusimulkku@lemm.ee ⁨11⁩ ⁨months⁩ ago

        Well of course you’d use waterproof base layer, typically you’d use several even without the plants. It’s tried and tested with multiple cases of failing with age. That’s the issue. Even just flat roofs have been a failure point even without the plants but soil and plants are a definite concern for builders when talking long term.

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• ILikeBoobies@lemmy.ca ⁨11⁩ ⁨months⁩ ago

  Kind of

  There are eco apartments (planning idk about practice); grass on the roof and trees growing up the side

  Lakehead University Orillia was going to do this but I don’t know if they have

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