Is it true that if living in a fluctuating temperature area i.e. a place that can go between 15-30/40 degrees e.g. Melbourne double glazing will expand and there will be…

Was told today double glazing is a waste of money and that roof insulation is far more effective as well as having laminated windows or putting a curtain over the…

If you have double glazed does that mean low e is not necessary?
How much if it's composite AL outside timber inside?

Thanks I'm wondering if the spec is over the top or a good balance i.e. good value for money

I have 4 timber windows in a double brick wall that are problematic namely:
- noise
- draft
- paint peeling off internally/externally
The most problematic is the noise as I live next…