Lifestyle

What energy efficiency class A means, how thermal resistance R and the U-value work, how much brick 200 mm of PUR foam replaces, and how to heat a small house during power cuts. With a worked heat-loss example.

You can declare your place of residence in a prefab house in Ukraine once it is registered as a residential house with an address and a recorded owner. A step-by-step procedure as of October 2026.