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 4 weeks agoDo you think that they build roofs that can’t support people walking on them?
paranoia@feddit.dk 4 weeks ago
SupraMario@lemmy.world 4 weeks ago
Which are a canopies or awnings not a roof.
paranoia@feddit.dk 4 weeks ago
Fuck off lmao. A canopy is a roof.
SupraMario@lemmy.world 4 weeks 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.
atomicbocks@sh.itjust.works 4 weeks 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?
paranoia@feddit.dk 4 weeks 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.
atomicbocks@sh.itjust.works 4 weeks 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.
grue@lemmy.world 4 weeks ago
Yes, when they’re called “awnings.”
SupraMario@lemmy.world 4 weeks ago
Which isn’t really a roof, it’s just a cover.
Alcoholicorn@mander.xyz 4 weeks ago
Yes. It doesn’t need to be 1 contiguous roof, gaps big enough to fit a ladder are ideal.
spoiler
SupraMario@lemmy.world 4 weeks 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.
Alcoholicorn@mander.xyz 4 weeks ago
Awnings are fabric lol. This is a roof made with solar panels, a solar roof.
SupraMario@lemmy.world 4 weeks ago
And those panels are not light weight…so someone could walk on them if they wanted.
ColeSloth@discuss.tchncs.de 4 weeks 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.
SupraMario@lemmy.world 4 weeks ago
Shade canopies or awnings…but yea solar is heavy.