HDB bathroom renovation: Ensuring proper waterproofing (checklist)

Waterproofing prevents water damage, mold growth, and structural issues in your HDB flat, protecting your investment and ensuring a healthy living environment.

Key areas include the shower area, flooring, and around the toilet bowl and sink, as these are most exposed to water.

Cementitious or liquid-applied membranes are commonly used due to their flexibility and ease of application in confined spaces.

Look for even coverage, no bubbles or cracks, and proper curing time as per the manufacturers instructions. A water ponding test after application can also help identify leaks.

Contact your renovation contractor immediately to assess the issue and rectify the waterproofing. Ignoring leaks can lead to more significant problems later on.

Most contractors offer a warranty period of 1 to 5 years for waterproofing work, covering material defects and workmanship.