Waterproofing start at kota Damansara Hospital TNB Room roof top

Waterproofing start at kota Damansara Hospital TNB Room roof top

Waterproofing Surface Preparation Checklist

Before starting any waterproofing application, proper surface preparation is essential to ensure maximum adhesion and long-lasting performance.

1. Thorough Surface Cleaning

  • Remove all dirt, dust, algae, moss, grease, loose particles, and any existing contaminants.
  • Clean the surface using a high-pressure water jet or suitable cleaning equipment to achieve a sound and clean substrate.

2. Protect Surrounding Areas

  • Cover and protect adjacent walls, windows, doors, finishes, and other nearby surfaces from water, dust, and coating splashes.
  • Ensure proper drainage or temporary barriers are in place to prevent water from flowing into unwanted areas.

3. Inspect the Substrate

  • Check for cracks, hollow areas, loose concrete, damaged screed, or deteriorated surfaces.
  • Repair all defects before proceeding with the waterproofing application.

4. Ensure the Surface is in Suitable Condition

  • Confirm the substrate is structurally sound, clean, and free from standing water (unless otherwise required by the waterproofing system).
  • Moisture conditions should comply with the manufacturer's application requirements.

5. Prepare All Materials & Equipment

  • Verify that all waterproofing materials, primers, tools, and safety equipment are ready before commencing work.
  • Ensure materials are mixed and applied strictly according to the manufacturer's specifications.