The Building Energy Act briefly explained – when it applies, what it means for insulation and heating, and why the certificate and structural engineering are included with us.

The Building Energy Act (GEG) governs the energy requirements for buildings in Germany – from insulation to heating technology. For tiny-house buyers the key question is: when does the GEG apply at all, and what does it mean for my house?
Use is decisive. As soon as a tiny house is used as permanently heated living space and counts as a building under planning law, the GEG requirements apply – for example to thermal insulation and heating technology. For purely seasonal or unheated use, the classification may be different.
The GEG sets requirements for the energy quality of the building envelope. Our houses are made of solid wood with high-quality insulation – which ensures a pleasant indoor climate, low energy costs and year-round habitability, even in winter.
A central point of the recent GEG amendments is that newly installed heating systems should run to a significant extent on renewable energy. For compact houses, efficient solutions such as heat pumps or infrared/electric heating combined with good insulation are often particularly sensible, because the heat demand is low to begin with.
A GEG certificate and structural engineering are often required for the building permit. Both are part of the offer at Green Cube House – you do not have to commission these documents separately. That saves time, cost and coordination effort in the permit process.
Energy regulations are adjusted regularly and can differ by federal state and point in time. This article gives a general overview and is no substitute for professional energy advice. Austria and Switzerland have their own rules.
We advise you on the right, efficient solution for your house and supply the GEG certificate and structural engineering.