Anyone with triple glazed sash windows?

[roses2]

We’re looking to get new upvc sash windows fitted.

Does anyone have triple glazed sash windows and are they worth the extra cost?

we don’t have any noise issue, looking at it from a heat retention perspective.

I don't believe you get that much extra from the 3rd pane, have you looked up figures?

You might be better off looking at the whole house and assiduously closing all gaps/door seals/insulating roof & floor voids etc

I looked at doing this but the sash is unlikely to be airtight in any case so just went for double glazed in wood frames. I have triple glazed at the back though which are not sash.