Comment on To finally bury this one anti-renewables astroturfed Reddit comment

• ColeSloth@discuss.tchncs.de ⁨1⁩ ⁨week⁩ ago

  They don’t build parking shade roofs to support the weight of being covered in panels, though. That has to be planned for. A typical panel that’s around five and a half foot by a bit less than 3 and a half foot weighs around forty pounds. Having like two of those on your covered spot at your house would probably hold fine. But to a large parking area will add a huge amount of weight.

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  • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

    Shade canopies or awnings…but yea solar is heavy.

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• paranoia@feddit.dk ⁨1⁩ ⁨week⁩ ago

  Yeah, I do, and I have good reason to, because I am a structural engineer and have designed them myself on occasion. A lot of these canopies over car and bike shelters are just a sheet of plexiglass.

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  • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

    Which are a canopies or awnings not a roof.

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    • paranoia@feddit.dk ⁨1⁩ ⁨week⁩ ago

      Fuck off lmao. A canopy is a roof.

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      • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

        No it’s not, if you asked to have a roof installed and someone installed a fucking canopy over your house, you’d be pissed.

        This is like asking for a truck and they show up with a station wagon and tell you well it’s got foldable back seats.

        Words have meaning.

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  • atomicbocks@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    Where are you designing these that they don’t need to support hundreds of pounds of snow or rain, or stand up to hail?

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    • paranoia@feddit.dk ⁨1⁩ ⁨week⁩ ago

      Northern/Western Europe.

      Hail bounces off, rain flows off. For a very light duty structure like a smoking shelter, bike shelter or trolley corral, they sometimes have a curved plexiglass roof that snow can just fall off or be blown off. A person is a much more intense load than snow (a person’s whole weight can be on one foot). The frame might take it, but the cladding may not.

      Usually they are just a product off the shelf.

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      • atomicbocks@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

        My parents just bought and installed a small off the shelf carport, it has its own built-in gutter system and the ability to hold 100s of pounds on its metal roof. Nobody is covering cars with plexiglass, that would literally defeat the purpose of having shade.

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• grue@lemmy.world ⁨1⁩ ⁨week⁩ ago

  Yes, when they’re called “awnings.”

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  • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

    Which isn’t really a roof, it’s just a cover.

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• Alcoholicorn@mander.xyz ⁨1⁩ ⁨week⁩ ago

  Yes. It doesn’t need to be 1 contiguous roof, gaps big enough to fit a ladder are ideal.

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  • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

    That’s more of an awning than a roof though. Plus that picture shows that this was specifically designed with the panels. As those are just straight solar panels and not roofing that’s had solar installed to it.

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    • Alcoholicorn@mander.xyz ⁨1⁩ ⁨week⁩ ago

      Awnings are fabric lol. This is a roof made with solar panels, a solar roof.

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      • SupraMario@lemmy.world ⁨1⁩ ⁨week⁩ ago

        And those panels are not light weight…so someone could walk on them if they wanted.

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