One Victoria | 63 m | 19 fl | Complete

[BuildingScout]

What are you talking about? Glass offers almost no insulating value, and insulated spandrel panels still don't come anywhere close to the thermal/insulating performance of an insulated solid wall system.

Before the misinformation gets too far in this thread - let it be known that glazing systems are weak in terms of thermal performance. That said, there are many ways to mitigate this using the latest building science advancements, and like much of architecture, decisions often fall in the grey area between matters of sustainability/energy efficiency and other architectural concerns such as aesthetic, feel of the space, light, ventilation, tectonics, etc. etc.

Gosh, talk about misinformation.

First, glass is a wonderful insulating material. A 1/4" single pane of glass has the same R-value as four times as much gypsum, three times as much plywood, and 16 times as much brick and/or concrete.

Second, a modern triple pane window has about 3x the R-value of a single pane, so now you have that a modern glass pane has about the same R-value as 16 times as much gypsum, 12 times a much plywood and 48 times as much brick and/or concrete, which is why current European regulations favour glass enclosed buildings.

Third, a glass enclosed building uses glass+air gap+inside glass/wall for insulation.

This gives an R-value of 12 for the glass+air+glass sections and 21 for the glass+air+wall sections. For comparison fiber glass with 2x4 wood studs has an R value of 12, so we just made the glass sections have performance similar to conventional non-transparent insulation and the walled sections have performance second to none.