[throw0101a]

> The glass roof is not a bad idea.

To what end? The roof is on the outside put the inside is vaulted stone.

The glass would only be visible from the outside... unless one wants to get rid of the internal vaults?

[ceejayoz]

The idea would be to turn what was previously the "attic" of the church into a public, park-like space.

https://www.cnn.com/style/article/france-notre-dame-green-sc...

[cc439]

That would simply create a gigantic greenhouse that would require enormous energy inputs to keep it habitable during most of the year. Not the most eco-friendly solution.

[ceejayoz]

There's certainly precedent.

https://en.wikipedia.org/wiki/Louvre_Pyramid

[seszett]

It would be on the small side for greenhouses. It could also very well be unheated in the winter, it's just Paris and not Vladivostok.

[throw0101a]

There are films that can be applied to glass that block infrared light, which would reduce thermal heating.