Will the Energy Saving Ordinance from 2021 make new construction unaffordable?

2019-01-11 16:37:14

Well, it wasn't meant completely seriously. Specifically, you usually need more insulation under the floor slab, on the walls, and under the roof. Possibly even better windows. In addition, everything must be done very precisely; there must be no gaps, cracks in foils, etc. I wanted to express that the difference hardly exists in practice; it only really shows on the certificate from the energy consultant and on the bill from the general contractor. Comfort gain or heating cost savings are virtually nonexistent.

2019-01-11 18:07:08

Now things are getting mixed up Energy Saving Regulation 16 = KfW70, not 55!

The next Energy Saving Regulation will then be KfW55, 40, or 40+. I’m guessing 40+, since with the mandatory smart energy control you can show how economical a house currently is through colorful animations in a media-effective way. Otherwise, not much changes. KfW55 is only complicated if you (like us) want to stick with a gas boiler. That requires a few extra centimeters of insulation & a controlled residential ventilation system. If you replace the gas boiler in a gas-heated & controlled residential ventilation KfW55 house with an air-to-water heat pump, you almost automatically get a KfW40 house. Photovoltaics on the roof, a battery in the utility room, and an iPad on the wall, and you have KfW40+.

Many builders are already installing photovoltaics anyway.

For the prefabricated house providers, it’s not an issue at all (Streif House, for example, already advertises: "every house with us is KfW40").

The shell constructors just have to adjust, because with monolithic, single-layer construction it won’t be so easy anymore. 24 cm Ytong Town & Country houses are then definitively history. One need not necessarily be sad about that.

PS. Building gets more expensive every year.

I am aware that the Energy Saving Regulation is not KFW 55, but many manufacturers offer KFW 55 as standard and no longer have Energy Saving Regulation in their program. Especially in the timber frame sector.

2019-01-11 18:58:45

The KFW 55 standard is something I cannot observe like that, at least not in the single-family house sector here in the area, and timber framing is still more of a marginal phenomenon, definitely not more than 10%. When the KfW still offered interesting conditions in 2016/17, some built KFW 55, we did too. The builders who are currently building are mostly building to the Energy Saving Ordinance standard again.

2019-01-11 20:59:44

When we searched, the timber frame companies we contacted did not offer houses with the Energy Saving Ordinance. KFW 55 or upgrading to KFW 40. And they were not just regional companies Weberhaus, Schwörerhaus, Hanse Haus, Albert-Haus, Rensch-Haus, Kampa, Streif Haus and some others.

For solid houses, it looked different.

2019-01-11 22:55:13

It is hardly possible to build worse with a timber frame. The 25-year-old timber frame house of my parents would also easily meet the Energy Saving Ordinance 2016 with new windows and a heat pump, photovoltaic panels on the roof and then it’s KfW 55.

2019-01-12 00:01:46

My position is that increasing insulation standards due to CO2 reduction leads to an unreasonable increase in building costs, ventilation systems, photovoltaic systems, blower door tests, etc. This drives up rents. Not good. K.

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Will the Energy Saving Ordinance from 2021 make new construction unaffordable?

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