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Leakage of Pointed Roof of Container House

Admin September 15, 2026

Leakage of the pointed roof of a container house may be caused by loose fasteners, material aging, construction defects, or poor drainage, and requires targeted treatment.

  1. Loose or Aged Fasteners
    During the installation or use of a container house, if the roof is stepped on or subjected to long-term external forces, the fasteners may become loose, and the aging of the waterproof gaskets can also cause leakage. Regularly inspect the roof fasteners, replace aged waterproof gaskets, and reinforce loose components.

  2. Unqualified or Aged Waterproof Materials
    If inferior waterproof materials are used during construction, or if the materials are exposed to harsh environments (such as ultraviolet rays and temperature changes) for a long time, they will accelerate aging and become ineffective. Select waterproof materials with strong weather resistance, such as modified asphalt membranes or polymer waterproof coatings, and regularly inspect the material status, replacing aged parts in a timely manner.

  3. Construction Defects

    • Improper Opening Treatment: When installing equipment such as fans and exhaust pipes on the roof, if the waterproof treatment of the surrounding cracks is not perfect, or if the cracks at the joints expand due to thermal expansion and contraction, the original waterproof layer will be damaged. Use sealant or waterproof sleeves at the openings and strengthen the waterproof treatment at the joints.
    • Inadequate Base Layer Treatment: Directly covering new membranes over old waterproof layers without addressing issues such as hollowing and blistering in the base layer can lead to the formation of interlayers between the old and new layers, causing water leakage due to water seepage. Thoroughly clean the base layer to ensure it is flat and dry before construction.
  4. Drainage System Problems

    • Unreasonable Gutter Design: If the gutter has no horizontal slope or the outlet is blocked, water may not be able to drain during heavy rain, potentially causing backflow into the eaves gutter or corroding the gutter structure. Adjust the slope of the gutter, clean debris from the outlet, and perform regular anti-corrosion treatment.
    • Debris Accumulation on the Roof: Debris such as fallen leaves and dust can block the drainage outlets, causing water to soak the waterproof layer. Regularly clean the roof to keep the drainage unobstructed.

Treatment Recommendations: First, locate the leakage points and inspect the fasteners, waterproof layer, and drainage system; if there is local damage, perform targeted repairs; if there are multiple leaks or the waterproof layer is severely aged, an overall renovation is required, strictly following norms for base layer treatment, material selection, and construction techniques.