I read in the magazine "Colors" (the issue they did on slums) that slum dwellers near Barajas airport in Madrid used roll-ends from a nearby Tetrapak factory as a roofing material. I guess that if you place it metal side up then it reflect the heat too.

I've been curious in the material ever since. You can also use it for simple non-solder circuit boards e.g. screw in LEDs with small self-tapping screws.

Polvo

Fire safety?[edit source]

How are these for flammability, and toxicity of smoke if they do catch light? I like the sustainability, but if it's not safe, we need to find other sustainable designs. --Chriswaterguy 04:26, 19 July 2011 (PDT)

Hi,

We're adding some functionality to project pages. I'll be adding a form to organize this page better, I hope it's useful! --Emilio (talk) 00:39, 16 October 2020 (UTC)

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