Spec of basic glasses
- Windscreen with grey top tint, and
- Green-tinted thermally insulated glass.
How does it insulate heat?
Does the thermally insulated glass also helps reduce noises?
Are they some sorta sandwich panels?
Or just with tinting film inside?
If the latter is the case, tinting an extra layer of aftermarket film over the factory green tint seems to be overdone.
Please let me know if you know anything about the above questions.

