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Based on what I see in the photo in the article, PV array codes in Puerto Rico must be quite different from those in California, because the arrays seem to cove

by danans 1y ago

Based on what I see in the photo in the article, PV array codes in Puerto Rico must be quite different from those in California, because the arrays seem to cover almost the entirety of the roofs. In California fire access codes [1] prevent the entire roof from being covered like in PV that. 1. https://energycodeace.com/site/custom/public/reference-ace-2013/index.html#!Documents/76californiafirecodesolaraccessrequirements.htm https://energycodeace.com/site/custom/public/reference-ace-2...

blitzar 1y ago
Likely because they have building codes that prevent the construction of houses from matchsticks.
- potato3732842 1y ago
  It has nothing to do with construction and everything to do with rainfall. I can throw a lit road flare into my back yard and nothing will happen, because I don't live in a glorified desert. PR is an order of magnitude wetter than where I live.
  - deleted 1y ago
    [deleted]
  - neilknowsbest 1y ago
    PR has a dry season when the island receives less rain, and there are dry regions that generally get less rain. In fact, there are sometimes forest fires [1]. Regarding construction, I've never seen a smoke alarm inside a residential building in PR. I would hazard a guess that this is allowed for concrete/cinderblock; presumably the roof thing is the same. [1] - https://www.elnuevodia.com/noticias/seguridad/notas/incendio-forestal-comienza-a-quemar-terrenos-de-la-reserva-del-bosque-estatal-de-maricao/ https://www.elnuevodia.com/noticias/seguridad/notas/incendio...
heliodor 1y ago
The vast majority of roofs in Puerto Rico are flat and the vast majority of buildings are made of cinder blocks and concrete.
pjc50 1y ago
What's the rationale for that? It's not a rule in the UK. I'm not sure who's going to be walking on the roof of a building that's on fire.
- KaiserPro 1y ago
  looking at the linked doc, its so that the roof can easily be opened to let smoke out. I'm not an expert, but I've not seen in the UK (well apart from thatched roofs) firefighters opening the roof to get access.

by danans 1y ago

blitzar 1y ago

Likely because they have building codes that prevent the construction of houses from matchsticks.

potato3732842 1y ago
It has nothing to do with construction and everything to do with rainfall. I can throw a lit road flare into my back yard and nothing will happen, because I don't live in a glorified desert. PR is an order of magnitude wetter than where I live.
- deleted 1y ago
  [deleted]
- neilknowsbest 1y ago
  PR has a dry season when the island receives less rain, and there are dry regions that generally get less rain. In fact, there are sometimes forest fires [1]. Regarding construction, I've never seen a smoke alarm inside a residential building in PR. I would hazard a guess that this is allowed for concrete/cinderblock; presumably the roof thing is the same. [1] - https://www.elnuevodia.com/noticias/seguridad/notas/incendio-forestal-comienza-a-quemar-terrenos-de-la-reserva-del-bosque-estatal-de-maricao/ https://www.elnuevodia.com/noticias/seguridad/notas/incendio...

heliodor 1y ago

The vast majority of roofs in Puerto Rico are flat and the vast majority of buildings are made of cinder blocks and concrete.

pjc50 1y ago

What's the rationale for that? It's not a rule in the UK. I'm not sure who's going to be walking on the roof of a building that's on fire.

KaiserPro 1y ago
looking at the linked doc, its so that the roof can easily be opened to let smoke out. I'm not an expert, but I've not seen in the UK (well apart from thatched roofs) firefighters opening the roof to get access.