Window double or triple glazed?

Good morning

We are about to finalize a contract with a well-known general contractor. We are facing the decision of which windows to choose: double-glazed or triple-glazed. Since we are considering using muntins, we were advised to go with double glazing, as the muntins ruin the U-value of triple glazing and the financial effort for triple glazing is simply not worthwhile.

Do you have any tips, advice, or opinions?

Thank you

Should they be real muntins? Then the GU might be right. If the muntins are glued on for the look, not. What is important to you when building a house and choosing windows? Great appearance or energy efficiency? You have to know what you want; the price then determines what you get.

Man: Efficiency Woman: Optics The question is whether the loss of efficiency is really that large.

We built a kfw70 house in 2013: with double glazing. Many large windows, no special technical requirements beyond the usual... with values just missing Kfw55.
Just for your information, you have to decide yourselves.

Brief regards

with double glazing

With muntins or without? And if yes, which ones?

Woman: Optics

Woman: doesn't clean herself? - glued-on muntins also make the surface easier to clean, as a nice side effect to the constructive continuity of the glass surfaces with only optical segmentation.