Tag: <span>ГОСТ</span>

Currently, GOST 30971-2012 is in force in this area. Seams are mounting units for adjoining window blocks to wall openings. General technical conditions (instead of GOST 30971-2002). If desired and necessary, it can be studied in detail, since besides the seams themselves, there are a lot of other useful information on the installation of window blocks. ⠀
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📋 But in short at the seams: ⠀
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The junction of the window (balcony) block to the wall opening. ⠀
(Photo 2) ⠀
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1. The central layer ⠀
2. Outer sealing layer ⠀
3. Inner sealing layer ⠀
4. Additional sealing layer ⠀
5. Low tide ⠀
6. Windowsill ⠀
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📐 Also, GOST describes the requirements for sizes, according to the materials. ⠀
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🗣 In our opinion, the optimal width of the seam, from the point of view of heat engineering, ease of installation and convenience of further internal and external decoration is 20-30 mm. ⠀
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🗣 In single-layer walls, in places where windows are installed, in addition to the installation joint of 20-30 mm, it is recommended to make grooves and install insulation in them. As a result, the width of the installation joint is designed to prevent freezing of the window and the window-slope assembly, and not to simplify installation for installers. ⠀
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Layered joint construction: ⠀
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🔸 main - providing thermal insulation and sound insulation; ⠀
🔸 external - ensuring the free exit of steam from the seam and protection of the main from external influences (UV, wind, moisture); ⠀
🔸 internal - vapor barrier, protection. ⠀
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Whatever materials are used in the construction of assembly joints, they must ensure tightness and prevent freezing of the circuit. And also to be durable and resistant to operational loads. ⠀