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"Busting the myth on solar thermal reflective paints, and having a cool roof": https://efficiencymatrix.com/understanding-solar-thermal-reflective-paints-cool-
by axiolite 5y ago
"Busting the myth on solar thermal reflective paints, and having a cool roof":
https://efficiencymatrix.com/understanding-solar-thermal-reflective-paints-cool-roof-busting-myth/ https://efficiencymatrix.com/understanding-solar-thermal-ref...
If it was worthwhile, we wouldn't need to wait for a paint, we'd all have mirrored chromium surfaces on our roofs.
- carom 5y agoThat link doesn't really support what I think you are claiming. Their models show solar reflective paint reducing heat over a black roof. Most of the myths they bust are about it keeping a house warm, which it doesn't.
- axiolite 5y agoReflective roof paint only helps if you have no insulation (which might be true of a shed, detached garage, etc.). Basic R-4 insulation performs dramatically better. "A cool roof does not improve energy efficiency if your ceiling is [...] insulated, the roof area temperature is not lowered enough using a paint to make a quantifiable difference."