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Moisture is a constant presence in our surroundings and poses a significant threat to the longevity of buildings. Walls, foundations, and roofs are nearly always exposed to water from both external and internal sources.<\/p>\n
Internal Sources<\/strong> External Sources<\/strong> Freeze-Thaw Cycles<\/strong> Moisture problems affect not only older or historic buildings but also newly constructed ones. The question arises: where does moisture in walls or on basement floors come from?<\/p>\n Identifying Causes<\/strong> Consequences of Damp Walls<\/strong> Moisture issues can arise due to various phenomena, often independent of obvious household malfunctions.<\/p>\n <\/p>\n Along with penetrating water, dissolved salts harmful to the structure also enter the walls. Additionally, chemical reactions (acidic exhaust gases + binder = salt) can create salts within building materials. Moist partitions transport water containing salts to the outer layers of the wall. There, the water evaporates, leaving behind salts that form characteristic unsightly efflorescence. This recurring process increases salt concentration and consequently hygroscopicity, which enhances the absorption of moisture from the surroundings.<\/p>\n Is it Efflorescence or Mold?<\/strong><\/p>\n Salt efflorescence is often mistaken for mold. How can you distinguish between them? To differentiate salt deposits from mold, scrape off a bit of the residue from the wall and dissolve it in water at about 20\u00b0C. If it dissolves completely, it is definitely salt.<\/p>\n Efflorescence forms when dissolved salts in water emerge onto the wall's surface from the mortar and bricks. The water evaporates, leaving unattractive residues on the surface. These residues can range in color from snow-white, orange, red, to dark gray. They often appear as colorful stains or crystalline growths on the wall.<\/p>\n Unfortunately, salt crystallizing on the wall's surface is not easy to remove. The deposits will keep reappearing as long as the wall remains damp.<\/p>\n Where Do Harmful Salts in Walls Come From?<\/strong><\/p>\n What Damage Can They Cause?<\/strong><\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=\"257068\" img_size=\"medium\" alignment=\"center\"][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":" Na zawilgocenie mur\u00f3w nara\u017cone s\u0105 nie tylko budynki stare, zabytkowe, ale r\u00f3wnie\u017c nowopowstaj\u0105ce.<\/p>\n","protected":false},"author":1,"featured_media":269757,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[303],"tags":[],"class_list":["post-276999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/posts\/276999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/comments?post=276999"}],"version-history":[{"count":0,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/posts\/276999\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/media\/269757"}],"wp:attachment":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/media?parent=276999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/categories?post=276999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/tags?post=276999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nMoisture from inside a building typically takes the form of water vapor produced during daily activities such as washing, cleaning, cooking, breathing, and occasional events like plumbing failures or flooding.<\/p>\n
\nRain, snow, and fog impact the building externally, while groundwater exerts additional pressure on foundations, potentially leading to damp walls.<\/p>\n
\nIn our climate, the freezing and thawing of water within walls further exacerbate the issue. Water exposure is not unusual and is a year-round phenomenon affecting all types of buildings. However, negative effects only occur when a building lacks proper protective measures.<\/p>\n
\nBefore addressing the issue of moisture, it is essential to identify its source. Water in walls can cause damage to the structure and negatively impact the health of its inhabitants. Salts present in building materials, migrating with moisture, are hazardous to walls and can lead to their deterioration. These salts also result in unsightly stains.<\/p>\n
\nWet walls create ideal conditions for mold and mildew growth, which can cause health risks. Additionally, they lead to significant energy loss. In spaces where people live and work, walls and basements must remain dry and well-sealed to ensure safety and comfort.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\nCauses of Moisture Penetration Beyond Household Water System Defects and Leaky Roofs<\/strong><\/h3>\n
The Most Common Causes Include:<\/strong><\/h3>\n
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\nMoisture penetrates the wall due to the absence or malfunction of base sealing.<\/li>\n
\nSalts present in walls have the ability to absorb moisture from the air and surrounding environment, depositing it within the building material (hygroscopic properties).<\/li>\n
\nWater vapor condenses into liquid water on cold surfaces, typically resulting from thermal bridges within the wall structure.<\/li>\n
\nMoisture infiltrates walls or floor slabs due to missing or improperly functioning external waterproofing.<\/li>\n
\nMoisture enters the wall due to the absence or failure of horizontal damp-proofing and\/or external waterproofing, then rises through the material via capillary action.<\/li>\n<\/ol>\nHarmful Salts<\/strong><\/h2>\n
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