{"id":5703,"date":"2026-03-23T11:56:37","date_gmt":"2026-03-23T04:56:37","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=5703"},"modified":"2026-03-23T11:56:37","modified_gmt":"2026-03-23T04:56:37","slug":"cach-xu-ly-dong-suong-tren-ong-gio-triet-de-hieu-qua-lau-dai","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/cach-xu-ly-dong-suong-tren-ong-gio-triet-de-hieu-qua-lau-dai\/","title":{"rendered":"How to completely and effectively eliminate condensation on air ducts for the long term."},"content":{"rendered":"
\"\u0110\u1ed9i
CGSV's engineering team is currently implementing mineral wool insulation for industrial piping systems at the project.<\/em><\/figcaption><\/figure>\n

Condensation on air ducts is a common problem in HVAC systems, especially in hot and humid environments like Vietnam. If left untreated, this not only detracts from the aesthetics but also leads to mold growth, ceiling damage, and reduced system lifespan. So what are the causes and how can this problem be completely resolved?<\/span><\/p>\n

Causes of condensation on air ducts<\/b><\/h2>\n

Condensation occurs when the surface temperature of an air duct is lower than the dew point of the surrounding air. Some of the main causes include:<\/span><\/p>\n

1. Lack of or damage to the insulation layer.<\/b><\/h3>\n

The insulation layer's purpose is to prevent temperature differences. When this layer is thin, torn, or improperly installed, it will cause condensation.<\/span><\/p>\n

2. High ambient humidity<\/b><\/h3>\n

In areas like basements, workshops, or during humid seasons, high humidity increases the risk of condensation.<\/span><\/p>\n

3. Cold air leak in the ductwork.<\/b><\/h3>\n

Leaky air ducts allow cold air to escape, lowering surface temperatures and causing condensation.<\/span><\/p>\n

4. The system design is not optimized.<\/b><\/h3>\n

Air ducts placed near heat sources or without proper flow rate calculations can also easily lead to this phenomenon.<\/span><\/p>\n

The harmful effects of condensation on air ducts.<\/b><\/h2>\n
    \n
  • It causes mold and mildew on ceilings and walls, affecting the aesthetic appearance of the building.<\/span><\/li>\n
  • Reduces HVAC system efficiency.<\/span><\/li>\n
  • Increased risk of bacteria and mold, affecting health.<\/span><\/li>\n
  • Damage to insulation and surrounding structures.<\/span><\/li>\n<\/ul>\n

    How to completely eliminate condensation on air ducts.<\/b><\/h2>\n

    To effectively resolve the issue, it is necessary to address the root cause and combine multiple solutions:<\/span><\/p>\n

    1. Proper insulation wrapping according to standards.<\/b><\/h3>\n

    Use quality insulation materials such as:<\/span><\/p>\n

      \n
    • Fiberglass<\/span><\/li>\n
    • Vulcanized rubber<\/span><\/li>\n<\/ul>\n

      Ensure:<\/span><\/p>\n

        \n
      • Suitable thickness<\/span><\/li>\n
      • The construction is sealed, with no exposed joints.<\/span><\/li>\n
      • Apply adhesive and seal the entire surface of the pipe.<\/span><\/li>\n<\/ul>\n

        This is the most important solution to prevent condensation.<\/span><\/p>\n

        2. Inspect and repair air duct leaks.<\/b><\/h3>\n
          \n
        • Inspect the joints and flanges.<\/span><\/li>\n
        • Use specialized sealant or gaskets.<\/span><\/li>\n
        • Ensure the system is completely sealed.<\/span><\/li>\n<\/ul>\n

          3. Control air humidity<\/b><\/h3>\n
            \n
          • Use a dehumidifier in areas with high humidity.<\/span><\/li>\n
          • Increase natural or mechanical ventilation.<\/span><\/li>\n
          • Avoid making the space too cramped.<\/span><\/li>\n<\/ul>\n

            4. Redesign the system if necessary.<\/b><\/h3>\n
              \n
            • Recalculate the airflow rate.<\/span><\/li>\n
            • Adjust the installation position of the air duct.<\/span><\/li>\n
            • Avoid placing the pipe near heat sources or humid areas.<\/span><\/li>\n
            • \n

              \"K\u1ef9
              CGSV technicians are performing sheet metal fabrication at the production workshop.<\/em><\/figcaption><\/figure><\/li>\n<\/ul>\n

              5. Regular system maintenance<\/b><\/h3>\n
                \n
              • Check the insulation layer.<\/span><\/li>\n
              • Cleaning air ducts<\/span><\/li>\n
              • Early detection of condensation<\/span><\/li>\n<\/ul>\n

                Conclude<\/b><\/h2>\n

                Condensation on air ducts can be completely eliminated if the cause is correctly identified and appropriate technical solutions are applied. In particular, proper insulation and ensuring an airtight system are key factors in maintaining long-term effectiveness.<\/span><\/p>\n

                If you are experiencing this problem, you should have your system checked as soon as possible to avoid incurring significant repair costs later.<\/span><\/p>\n

                 <\/p>","protected":false},"excerpt":{"rendered":"

                Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ecdng s\u01b0\u01a1ng tr\u00ean \u1ed1ng gi\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC, \u0111\u1eb7c bi\u1ec7t t\u1ea1i m\u00f4i tr\u01b0\u1eddng n\u00f3ng \u1ea9m nh\u01b0 Vi\u1ec7t Nam. N\u1ebfu kh\u00f4ng x\u1eed l\u00fd k\u1ecbp th\u1eddi, t\u00ecnh tr\u1ea1ng n\u00e0y kh\u00f4ng ch\u1ec9 g\u00e2y m\u1ea5t th\u1ea9m m\u1ef9 m\u00e0 c\u00f2n d\u1eabn \u0111\u1ebfn \u1ea9m m\u1ed1c, h\u01b0 h\u1ecfng tr\u1ea7n nh\u00e0, gi\u1ea3m tu\u1ed5i th\u1ecd […]<\/p>","protected":false},"author":3,"featured_media":5705,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[271,270,272],"class_list":["post-5703","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","tag-cach-xu-ly-ong-gio-dong-suong","tag-dong-suong-ong-gio","tag-xu-ly-ngung-tu-ong-gio-hvac"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=5703"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5703\/revisions"}],"predecessor-version":[{"id":5706,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5703\/revisions\/5706"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/5705"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=5703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=5703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=5703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}