The minimum wall thickness is not an obligation, but a recommendation. Why is it possible to live with 300 mm aerated concrete as well as with 400 mm? Let me explain.

I have heard more than once how some people argue that if you do not make walls of the "necessary thickness" in the house that provide a normalized level of heat transfer, then it will be impossible to live there. And it seems to me that these comrades clearly do not deal with reality.

Friends all a big hello. Although I am not a professional builder, and do not even have the appropriate education, but for the entire time of building a house with my own hands, I reviewed a bunch of information on construction topics. And since the box is at home, and interior decoration is underway, then probably everything was not in vain.

When making any decisions in my house, I tried never to impose my opinion on others. But sometimes it's impossible to get past.

The thickness of the aerated concrete wall is a very popular question.

❗ And we are talking about its thermal insulation characteristics.

✔ Some say 300 mm is enough and you can live in peace.

✔ Others argue that 400 mm of aerated concrete cannot be left without insulation ..

And the most interesting thing is that opinions differ in the same region, with the same weather conditions.

So who to believe and what to build on?

The norms of thermal conductivity of the wall in our time are aimed more at reducing energy costs for heating. Although just for a comfortable stay in the house, they are overpriced.

• For example, historically in central Russia, houses were built with walls of 2.5 bricks. And they lived happily ever after...

• Although the wall is 2.5 bricks, in terms of thermal conductivity it corresponds to 100 mm of aerated concrete with a density of D400.

In general, the requirements for the heat-shielding properties of walls, since the late nineties, have increased almost three times. Those. What used to be considered normal is now unacceptable.And that's in a relatively short amount of time.).

So maybe the demands that many are fighting for now will soon become unusable ???

It seems to me that in your home you need to build on two things.

1. Thermal comfort. This concept is purely individual for each person. Someone feels good at home and at 18 ° C, someone freezes at 24 ...

2. your possibilities. Of course, if finances allow, then everything needs to be done with a margin. But if everything is limitedlike mine), then there is no hurry.

Here I am, I built a house box from aerated concrete D400, 300 mm thick, and I am in no hurry to insulate it.

• I know that the laying was done carefully, and the seams of the minimum thickness.
• I will do the interior decoration, the micro-slits in the masonry will generally go away, and the thermal insulation will improve.
• I will fill the house with all the contents, the atmosphere will also change.

I will live with all this, and only then will I finally understand whether the wall thickness of 300 mm is enough for me. Am I satisfied with the atmosphere in the house, and the bills that come for heating? or still make more insulation, and will it really be profitable ...

Of course, this approach is not suitable for everyone, but I think for many.

Friends, what do you think about this issue? Share your opinion and experience, it's always helpful.

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