Very insulative, transpirant windows, as an alternative to glass, a new glass or to combine with glass

1 Making or finding something very insulative and fully transpirant (as clear as glass) that can be used instead of glass windows
-It should have around the same properties, solid, not flexible, same strength, around the same weight etc.

2 Making glass that is very insulative, maybe by adding something. While it does not loose it's transpirancy

3 Combining. For example two layers of glass with in between them something which is fully transparant (as clear as glass) and which is highly insulative (this time that layer might be able to be flexible)

By Jef Koelewijn
From Holland
Written on: 04-05-2019