Inexpensive house cladding that will save you 10-15% on heating

Not far away, as in the spring of 2020, I became interested in the issues of the so-called "smart cladding" of a country house. I read a lot of literature, got acquainted with the German standard "PassiveHaus", but most of all I liked the solution used by one Swedish family.

The introduction to the technology started with this short video. Do not be lazy - look at how the Swedes cleverly insulated their house:

I really liked this construction adventure, but here's the bad luck: I'm far from a millionaire, and there is always a shortage of free money that can be spent on construction. This means that it is necessary to simplify the technology.

The technology can be simplified by materials (instead of glass, I used polycarbonate), and by location (instead of construction of a complex atrium, I simply sheathed the wall of the house with this material with minimal air clearance).

It turned out something like this. Someone will like it, some will not, I will explain below that the cladding actually has 2 necessary functions at once.

How it works?

A small (~ 1 cm) air gap is left between the wood cladding and the polycarbonate sheet. On the coldest days, as a rule, it is sunny - the sun freely passes through polycarbonate (its light transmittance coefficient is 71%) and heats up the wall of the house.

At night, when there is little light, a double layer of polycarbonate prevents heat from freely leaving the house. On the other hand, the solid sheet also blocks the wind, which "blows" the heat out of the house.

Remember what I said about the second function?

Our roof has a fairly large angle of inclination, so raindrops from it fly to the blind area and jump back to a height of another 30-40 cm, which makes the cladding of the house wet. And here polycarbonate perfectly protects the wood from getting wet. Here is its second function.

Thanks to this and another technical solution, heating bills are much lower this year. Who cares, here is the second article about economical heating of a house with electricity.

I don't need gas now!

• I heat the house according to the Carnot cycle: from 1 kW of electricity I get 3.81 kW of heat.

I leave room for your comments, suggestions and questions!