PU Injection

PRO HOME

PU Injection & Roof Waterproofing Seremban

Pro Home provides professional PU injection and roof waterproofing Seremban solutions for water seepage through cracks, joints, concrete walls, ceilings, and roof slabs. PU (polyurethane) injection works by injecting suitable material into affected cracks or voids to help seal water entry points.

This method is commonly used for concrete areas such as roof slabs, basements, retaining walls, bathrooms, and other locations affected by water seepage. It allows targeted waterproofing treatment without requiring extensive removal of the surrounding concrete surface.

Before carrying out PU injection, our team inspects the affected area to identify where the water is entering and determine whether injection is suitable. If the leakage is caused by roofing materials rather than concrete cracks, other roof leak repair Seremban solutions may be more appropriate.

Types of PU Injection

01.

PU Foam Injection

PU foam injection is commonly used for active water leakage. The material reacts in the presence of moisture and expands inside cracks and voids, helping to form a barrier against continued water penetration. It is suitable for concrete areas affected by active seepage, including roof slabs, basement walls, and other wet conditions.

02.

PU Gel Injection

PU gel injection uses a flexible injection material that can penetrate smaller cracks and joints. It is suitable for certain damp or water-affected areas where a flexible waterproofing seal is required. The flexibility of the material can make it useful for areas where minor movement may occur.

03.

PU Resin Injection

PU resin injection can be used to fill and seal certain cracks and voids in concrete. Depending on the specific material and application, it may provide a firmer seal than expanding foam systems. Our team assesses the crack condition before selecting the appropriate injection material.

04.

Flexible PU Injection

Flexible PU injection is designed for cracks or joints that may experience slight movement due to expansion, contraction, or building movement. Its flexibility helps maintain the waterproofing seal while accommodating limited movement in the treated area.

When Is PU Injection Suitable?

PU injection may be considered when water is entering through cracks, joints, or voids in concrete structures. Common situations include:

  • Water seepage through concrete roof slabs
  • Cracks in basement or retaining walls
  • Leakage around concrete joints
  • Damp patches caused by concrete cracks
  • Recurring water seepage through ceilings
  • Areas where conventional surface waterproofing is difficult

PU injection should not automatically be used for every roof leak. If the problem is caused by damaged tiles, metal roofing, flashing, gutters, or other external roofing components, proper rooftop leaking repair Klang Valley or roof repair may be required instead.

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