This is something that as passed a few times in my background brain processes,
How does SHG on exterior cladding/glass influence heatloss ??
If glazings specs 50%VT , a part of the remaining 50% must be converted to heat?
If exterior cladding on a building is black, and sun is shinning on the south face,
it must affect the heatloss greatly for the shined on walls ??
As an example, let's assume a building up here cold north.
20c inside 0c outside.
Sun shines on a large flat south wall that was cladded with a black painted steel sheets finish.