About aerated concrete and low temperatures

The most common claim to building material is its destruction in cold weather. There are such cases, but you cannot blame the stone here, as gross errors are made when working with it. ⠀
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💧 Concealed aerated concrete is delivered to the construction site with excessive moisture, and it begins to dry when the walls are already built. And also, when laying, moisture from the solution gets into the gas block. Many masters when working with a gas block spill it with water for better setting, and this water is inside the wall. ⠀
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If you do not let the wall dry and trap moisture inside, then you should expect unpleasant consequences. With the onset of frosty weather, such a wall will freeze, turning water into ice, which will lead to delamination and destruction of the outer part of the structure. Locking moisture inside the wall is one of the main violations of the rules for the operation of aerated concrete. ⠀
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☀ The masonry can be considered dried up and ready for further finishing after at least two seasons. Before the expiration of this period, it is not recommended to make repairs or finishing works that affect the vapor permeability of the walls. ⠀
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The following factors lead to moisture blocking inside the wall: ⠀
🔸 plastering external or internal walls with stucco with low vapor permeability; ⠀
🔸 finishing of damp walls with a siding facade; ⠀
🔸 pasting of dry walls with vinyl wallpaper; ⠀
🔸 lack of ventilation in the first years of operation; ⠀
🔸 waterproofing the damp wall; ⠀
🔸 incorrect window design (lack of window sills). ⠀
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Another common mistake in the operation of new gas-block houses is the lack of ventilation or proper ventilation. Living does not do without the use of water, and water, as usual, leads to the formation of steam, which complements the moisture of the walls. In turn, excess moisture at a temperature difference in cold weather will climb outside, which will lead to its accumulation on the outside of the wall. What happens from her contact with frosty air is known. ⠀

Источник — FORUMHOUSE