{"id":5380,"date":"2026-02-27T16:16:36","date_gmt":"2026-02-27T09:16:36","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=5380"},"modified":"2026-02-27T16:16:36","modified_gmt":"2026-02-27T09:16:36","slug":"bao-lau-can-bao-tri-he-thong-ong-gio-chong-chay-bi-quyet-duy-tri-do-ben-vinh-cuu","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/bao-lau-can-bao-tri-he-thong-ong-gio-chong-chay-bi-quyet-duy-tri-do-ben-vinh-cuu\/","title":{"rendered":"How Often Does Fire-Resistant Ducting System Need Maintenance? Secrets to Ensuring Lasting Durability."},"content":{"rendered":"

In fire protection systems, fire-resistant air ducts (EI) play a vital role in venting smoke and preventing the spread of fire. However, many businesses often have a "install once, use forever" mentality, forgetting that the durability of the air ducts depends heavily on maintenance.<\/span><\/p>\n

So how often do fire-resistant duct systems need maintenance, and how long do they actually last? Let's find out in detail below.<\/span><\/p>\n

\"C\u00f4ng
OGSV workers are currently working on the project.<\/em><\/figcaption><\/figure>\n

1. Actual lifespan: How long do fire-resistant ductwork last?<\/b><\/h3>\n

Technically, a standard fire-resistant duct system (made from galvanized steel combined with specialized fire-resistant panels or fire-resistant paint) has an average lifespan of... <\/span>20 to 25 years<\/b>.<\/span><\/p>\n

However, this lifespan can only be achieved when:<\/span><\/p>\n

    \n
  • Materials meet standards:<\/b> Use fire-resistant panels (such as MgO panels, gypsum boards, or fire-resistant mortar) that offer good heat and moisture resistance.<\/span><\/li>\n
  • Ideal environment:<\/b> Avoid direct contact with corrosive chemicals or excessively high humidity that could cause the inner steel core to rust.<\/span><\/li>\n
  • Construction carried out according to proper techniques:<\/b> The flange connections and supports are securely installed, preventing pipe deformation over time.<\/span><\/li>\n<\/ul>\n

    2. How often does a fire-resistant duct system need maintenance?<\/b><\/h3>\n

    Despite their high durability, regular maintenance is mandatory to ensure readiness in the event of a fire. According to recommendations from HVAC experts and fire safety standards, the maintenance schedule should be as follows:<\/span><\/p>\n

    Regular maintenance every 6 months (Surface inspection)<\/b><\/h4>\n

    This is a quick check to detect signs of physical deterioration:<\/span><\/p>\n

      \n
    • Inspect the fire-resistant coating for any peeling, cracking, or damage.<\/span><\/li>\n
    • Identify any rust spots at the joints, bolts, and nuts.<\/span><\/li>\n
    • Check the tightness of the heat-resistant gaskets at the flange joints.<\/span><\/li>\n<\/ul>\n

      Intensive maintenance every 12 months (Operating system)<\/b><\/h4>\n

      A comprehensive inspection process should be carried out once a year:<\/span><\/p>\n

        \n
      • Clean the inside of the pipe:<\/b> Remove accumulated dirt and debris. Excessive dirt can be a fire hazard or reduce airflow during smoke evacuation.<\/span><\/li>\n
      • Check the fire damper:<\/b> Ensure that the valve's springs and temperature sensors remain responsive, capable of opening and closing immediately when temperatures rise.<\/span><\/li>\n
      • Reinforce the suspension system:<\/b> Ensure that the threaded rods and brackets do not become loose due to vibrations from the industrial fan.<\/span><\/li>\n<\/ul>\n

        3. Why is regular maintenance important for EI ductwork?<\/b><\/h3>\n

        Neglecting maintenance not only reduces product lifespan but also creates serious risks:<\/span><\/p>\n

          \n
        1. Ensuring legal compliance:<\/b> Modern high-rise buildings and factories are required to undergo periodic inspections by the fire safety authority. Ventilation systems with damaged protective casings will not be accepted for approval.<\/span><\/li>\n
        2. Preventing the risk of "disabling":<\/b> Fire-resistant paint or panels, if affected by mold or peeling, will lose their insulation properties. In the event of a fire, the pipes will deform within minutes instead of withstanding 60-120 minutes as designed.<\/span><\/li>\n
        3. Long-term cost savings:<\/b> Repairing a small section of rusted pipe is always much cheaper than replacing the entire vertical shaft system when it has been severely corroded.<\/span><\/li>\n<\/ol>\n

          4. Signs that indicate you need immediate duct maintenance.<\/b><\/h3>\n
          \"C\u00f4ng
          OGSV workers are currently working on the project.<\/em><\/figcaption><\/figure>\n

          Don't wait until your scheduled maintenance if you notice the following symptoms in your system:<\/span><\/p>\n

            \n
          • There are strange noises, a whistling sound coming from the joints (a sign of air leaks).<\/span><\/li>\n
          • The fire-resistant paint is blistering or the outer covering is damp and rotting.<\/span><\/li>\n
          • The airflow at the vents has decreased unusually.<\/span><\/li>\n<\/ul>\n

            Conclude<\/b><\/h3>\n

            The answer to <\/span>\u201c"How long do fire-resistant air ducts last?"\u201d<\/b> The key lies in how you maintain the system. With proper maintenance (every 6-12 months), your system will always be ready to fight fires, providing absolute safety for people and property.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

            In fire protection systems, fire-resistant air ducts (EI) play a vital role in venting smoke and preventing the spread of fire. However, many businesses often have a "install once, use forever" mentality, forgetting that the durability of the air duct depends greatly on [...]<\/p>","protected":false},"author":3,"featured_media":5381,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[199,154,200],"class_list":["post-5380","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","tag-bao-tri-ong-gio","tag-cong-trinh-ong-gio-hai-phong","tag-do-ben-ong-gio-hai-phong"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5380","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=5380"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5380\/revisions"}],"predecessor-version":[{"id":5384,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5380\/revisions\/5384"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/5381"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=5380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=5380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=5380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}