Single-family house KfW55 - Extra costs: rip-off or justified?

100ers are no longer allowed, right? I thought the Building Energy Act is the minimum?

Yep - and that is a "KfW 70" house in new construction.

I would have loved to have double-glazed windows in the new house, but I didn’t dare ask for it, not even here in the forum.

That is a pity. For us, it was standard. When we moved in, the hype with triple and 5-fold glazing started. You can read a lot of negative things. They are heavy, expensive, and cause moisture buildup in the morning… etc. All just to save 10 euros a month.

The story of our new house is actually one of those "didn’t dare" stories. ;-)

That is a pity!

Our house also has a cold roof, and the future attic conversion is "excluded" as well.

You have a city villa with a hipped roof (or similar). That doesn’t really lend itself to that. Crawling through the floor hatch and the low roof involves dangers. I think you could still store a few boxes around the hatch.

100ers are no longer allowed, right? I thought the Building Energy Act is the minimum?

No, they are no longer allowed. But the houses that were built recently to that standard can provide a home for a family and work wonderfully, even with low heating consumption. Many forget that those who are now building in the craze that everything must be the newest "standard." Many forget that new does not mean best. There is no need to badmouth what is proven.

I would have so much liked to have double-glazed windows in the new house, but I didn't dare to ask for it, not even here in the forum. The story of our new house is actually one of those "didn't dare" stories. ;-)

I don't understand that, especially since you know a window specialist :-(

I don’t understand that, since you know a window fitter :-(

I didn’t know him that well at the time in question. ;-) Besides, I assumed that triple-glazed windows also have advantages and seem to be the standard. I don’t want to deviate from the standard in too many things.

Only to save ten a month.

With the current gas and electricity prices, that’s already turning into twenty ;)

With the current gas or electricity prices, that already makes a 20er ;)

Which brings us back to the topic of energy consumption: a Kfw55 house with double-glazed windows can certainly be compared to a Kfw55 house with triple-glazed windows. Many roads lead to Rome: one may be rocky, another against the wind – the energy invested is ultimately the same.