It’s not visibly reflective. Yes, it’s white, but it’s cool to the touch because the majority of the energy is radiated out into space via non-visible wavelengths. Someone has already posted a great YouTube video from Night Hawk In Light in a comment where he explains how this tech works and makes his own paint!
Comment on Ultra-white ceramic cools buildings with record-high 99.6% reflectivity
Treczoks@lemmy.world 1 year ago
Probably illegal here because of the high reflective value. Depending on the sun’s position, it could dazzle and blind people, e.g. people driving cars or riding bikes. I know that for this reason, shiny metal roofs are not allowed.
AstridWipenaugh@lemmy.world 1 year ago
trackindakraken@lemmy.whynotdrs.org 1 year ago
Yeah, it’s good to read the article before commenting.
Here’s a link to the Night Hawk video. Good stuff. invidious.fdn.fr/watch?v=KDRnEm-B3AI This guy just gives away a formula he developed for the pigment. OG shit.
PsychedSy@sh.itjust.works 1 year ago
Him, Thought Emporium and Breaking Taps are in their own league of genius.
ladicius@lemmy.world 1 year ago
I have aluminium foil covering my windows in summer and that doesn’t blind anyone by far, even in full sunlight.
Not everything reflecting is a mirror.
KapiteinPoffertje@lemmy.world 1 year ago
There is a difference between mirror like reflection and diffuse reflection. Mirror reflection is what you get with metal roofs which beam the sun directly to a target resulting in one spot being blinded. Diffuse reflection will spread it around, resulting in more light all around which is what we can handle as humans.
Silentiea@lemm.ee 1 year ago
Can mostly handle. Snow blindness is a thing, and that’s all diffuse reflection too, not specular. But it’s unlikely a roof would be such a problem.
Pulptastic@midwest.social 1 year ago
We have snow here