3 ms·
Mirrors have low emissivity. While they accept a bit less heat, they will hold on to it more than something with white paint (which can have pretty good emissiv
by jccooper 4y ago
Mirrors have low emissivity. While they accept a bit less heat, they will hold on to it more than something with white paint (which can have pretty good emissivity) and will thus get hotter.
- gumby 4y agoThanks, that’s interesting. Al is a pretty good IR reflector, and I believe most common mirrors these days use it as the reflective coating. Is the glass the problem?
- simondotau 4y agoGiven that window glass can get damn hot when exposed to strong sun, and situating a perfect reflector behind it would presumably double the effect, intuition leads me to guess that yes, the glass would be a problem.