What is the correct thickness of insulation? The reply from the album of technical solutions

Pon my own experience, I can say with confidence that many self builders refer to the issue of choice of insulation and vapor barriers are very, very lightly.

Tipichnaya situation: a person decides to insulate foam frame house, Epps or Penoplex not looking to buy the cheapest one sheet of, say, 40 mm thick here and Sales approaches him and says that the 40 mm foam for heat transfer resistance equal to 60 mm of conventional mineral wool insulation. All purchase is made.

BUT to climb up to the manufacturer's website, find the album of technical solutions, see the test results of material (flammability, resistance to heat, etc.) - no, we do not.

Poetomu on your channel, I try to give subscribers ready-made solutions based on technical calculations and science.

So, today, to answer one of the most common questions - what thickness of insulation should be used? And is it possible to lay the insulation in two or even three layers?

ABOUTBrothers Album of technical solutions of one of the producers of basalt insulation. In it unambiguously stated that house warming plates 100 and thickness 150 mm effective than tab 50 millimeter plates.

So, the city's three-layer wall (3 * 50mm) makes no sense.

TOrum, the insulation thickness of 100 mm and above are not prone to sagging, and accordingly, it is better kept in the frame (if you build a frame house).

How many layers of insulation to put?

NIIMosstroy He conducted research and compared insulation frame house in two layers (50 + 100 mm) and one insulation layer (150mm).

RPerforman are: the difference in the resistance to heat transfer between the two types of warming no. In both cases, the insulation is equally effective.

ABOUTptimalnaya clearance between the sheets and insulation kontrobreshetkoy - 2 mm. If the gap is greater, the house loses heat rapidly.

What is the thickness of the insulation is optimal?

For insulation of walls: Southern regions of Russia - 100 mm, the central region - 150 mm, North-West, Ural and Siberia - 200 mm.

For thermal insulation of the roof: Southern regions of Russia - 150 mm, the central region - 200 mm, North-West, Ural and Siberia - 250 mm.

I hope that answered your questions about the insulation.
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