Tag: <span>установка окон</span>

Many consider the technology described below to be the most advanced: ⠀
⠀
➖ Pre-treatment of aerated concrete: primer, then STIZ-D. ⠀
➖ Window fasteners: mounting plates up to 700mm pitch, terrace exit to anchor bolts. ⠀
➖ Support pads: plastic. ⠀
➖ Waterproofing (from the street): STIZ-A vapor-permeable sealant or analogues. ⠀
➖ Mounting seam: polyurethane mounting foam. ⠀
➖ Steam insulation (from the room): vapor barrier tape. ⠀
➖ Additional sealing of connectors and expanders with PSUL tape. ⠀
⠀
@energo_doma⠀
In addition to supporting blocks, plates and mounting foam, everything else is a waste of money. ⠀
⠀
Arguing: ⠀
⠀
? Polyurethane foam is negligible. ⠀
? Foam is negligible hygroscopic. ⠀
? For internal and external decoration, the foam will be closed inside and out, which will create the same barrier as sealants. The internal slope will be denser, which means that the rule is denser from the inside than outside, ⠀
Of course, you can do it using the technology described above, it won’t be bad, but it won’t be as bad without special stages. ⠀
⠀
⚠ Conclusion ⠀
⠀
The width of the mounting seam is important both from the point of view of heat engineering, and from the position of ease of installation of window blocks and further finishing from the inside and outside. Whether to adhere to GOST, everyone’s personal affair, the argument "I have a seam of 1 cm, but there is no condensation, especially mold," often causes much more confidence than standards. Nevertheless, it is important to observe a number of installation rules that will allow you to neutralize the negative aspects of unprofessional installation of windows. ⠀

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. ⠀
⠀
📋 But in short at the seams: ⠀
⠀
The junction of the window (balcony) block to the wall opening. ⠀
(Photo 2) ⠀
⠀
1. The central layer ⠀
2. Outer sealing layer ⠀
3. Inner sealing layer ⠀
4. Additional sealing layer ⠀
5. Low tide ⠀
6. Windowsill ⠀
⠀
📐 Also, GOST describes the requirements for sizes, according to the materials. ⠀
⠀
🗣 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. ⠀
⠀
🗣 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. ⠀
⠀
Layered joint construction: ⠀
⠀
🔸 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. ⠀
⠀
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. ⠀