{"id":277419,"date":"2024-02-09T11:26:27","date_gmt":"2024-02-09T11:26:27","guid":{"rendered":"https:\/\/www.sanier.pl\/zalany-garaz-podziemny-co-zrobic\/"},"modified":"2025-01-16T13:55:56","modified_gmt":"2025-01-16T13:55:56","slug":"zalany-garaz-podziemny-co-zrobic","status":"publish","type":"post","link":"https:\/\/www.sanier.pl\/en\/aktualnosci-en\/zalany-garaz-podziemny-co-zrobic\/","title":{"rendered":"Flooded Underground Garage"},"content":{"rendered":"

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Flooded Underground Garage \u2013 What to Do?<\/h1>\n

Why Does Water Enter Underground Parking Garages?<\/h2>\n

Flooded garages are a common issue that can arise not only during heavy rains but also in the spring thaw period when groundwater levels gradually rise.<\/p>\n

The main culprit for underground garage flooding is rainwater, as it tends to accumulate around these structures. However, there are several potential causes of flooding, one of which is improperly executed waterproofing.<\/p>\n

If the waterproofing is inadequate or damaged, water can easily penetrate the garage, leading to flooding and causing significant property damage, such as vehicle corrosion or structural damage to the building. Proper waterproofing is therefore a critical component in protecting underground garages from the adverse effects of water.<\/p>\n

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Water in Underground Garage \u2013 Where Does It Come From?<\/h3>\n

There are many reasons why water or moisture can appear in a garage. Primarily, three potential sources of moisture should be considered: rainwater, rising groundwater levels, and often overlooked, runoff water from vehicles.<\/p>\n

Common Causes of Water and Moisture in Underground Parking Garages:<\/h3>\n
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  1. Leaking Construction Joints in the Garage Roof<\/strong>
    \nStructural expansion joints in the ceiling of the garage hall, often located beneath parking lots or green roofs, can lead to rainwater infiltration if they are not properly sealed.<\/li>\n
  2. Cracks in Walls and Ceilings<\/strong>\n
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    • Groundwater can seep through cracks in walls, while rainwater can infiltrate both walls and ceilings.<\/li>\n
    • Such cracks often result from construction work or execution errors, including a lack of proper sealing in connections between foundation walls and the bottom slab. Unfortunately, improper or omitted sealing by contractors can allow water to penetrate the building.<\/li>\n<\/ul>\n<\/li>\n
    • Runoff Water from Vehicles<\/strong>\n
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      • This issue arises from the lack of durable seals between linear drainage channels and the floor. Over time, this can lead to the gradual degradation of walls and floors.<\/li>\n
      • Water from rain or snow carried on vehicles slowly seeps through gaps between the drainage channels and the floor, creating hidden streams. Over time, this accumulation of water has little chance to fully evaporate, leading to damp walls, damaged finishes, and water pooling beneath the floor.<\/li>\n<\/ul>\n<\/li>\n
      • Leaking Joints in Inter-Floor Slabs and Along Drainage Channels<\/strong>\n
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        • Water runoff can penetrate various levels of the garage through leaks in expansion joints and drainage channel seals.<\/li>\n
        • As water moves through the structural layers of the slab, it may carry harmful chemicals that deposit on vehicles, damaging their paintwork.<\/li>\n
        • Furthermore, water infiltration through slabs can cause rebar corrosion, compromising structural integrity.<\/li>\n
        • Similar problems occur around pipe penetrations in slabs, where insufficient sealing can lead to significant leaks.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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          Flooded Underground Garage \u2013 What to Do?<\/strong><\/h3>\n

          To resolve the issues mentioned above, the following methods are commonly used:<\/p>\n

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          • Sealing Expansion Joints in Ceilings<\/strong> \u2013 Work should always be performed from the exterior. However, in certain cases where external construction prevents this operation, an injection technique is applied. This involves injecting resin into the joint gap to seal it effectively.<\/li>\n<\/ul>\n

            In such situations, the best solution is to consult an expert who can recommend the most suitable approach for the specific case.<\/p>\n

            We provide advice on waterproofing foundations, basements, and injection techniques. Before taking any action, we perform a detailed assessment of the situation based on photos and descriptions of the problem provided by the client, or ideally, during an on-site visit. We encourage you to fill out our contact form or reach out to us by phone so we can promptly address your needs.<\/p>\n

            Schedule a consultation with a waterproofing and renovation expert:<\/strong><\/h3>\n

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            During this consultation, you will learn more about:<\/p>\n