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Shingles are made of asphalt, derived from the lowest grade of oil. It's so cheap we paint it all over our roads, too.
by kijin 15y ago
Shingles are made of asphalt, derived from the lowest grade of oil. It's so cheap we paint it all over our roads, too.
- dkastner 15y agoNot only is it made from the lowest-grade oil, but this low grade oil constitutes the majority of all the oil (and near-oil substances) that's left, e.g. tar sands, oil shale.