5 ms·
My first thought was that dirt would immediately make this useless. But since we are only talking about heat from radiation and not convection then putting a l
by georgyo 5y ago
My first thought was that dirt would immediately make this useless.
But since we are only talking about heat from radiation and not convection then putting a layer of glass above it would solve most of that issue. Bonus points if the paint and layer of glass are separated by a vacuum.
This world greatly increase the cost but would insulate very well and still reflect all the heat. The paint layer itself would never get dirty.
- ikr678 5y agoThe glass would still get dirty though.
- bluepoint 5y agoMaybe you can put another layer of glass on top of it? Or, disposable plastic? (joke)
- georgyo 5y agoYes, it would, and it would absorb more heat. It would then radiate that heat and the paint would reflect it. If the glass gets dirty to the point that it is fully covered then it would have no benefit. But if it is dirty where say 20% of light is absorbed, then it the reflective layer underneath would still be hugely effective.
- ikr678 5y agoIt was a joke - there are self cleaning glass products on the market but I don't know how well the self-cleaning properties hold up on horizontal installations - you will still get some sediment buildup. The self-cleaning coatings may also change the heat reflective properties of the installation.
- beardyw 5y agoWouldn't you just use mirrored glass?