Bathroom waterproofing is a key concern for anyone during renovations. If it's not done properly, leaks can become a long-term headache. So, here’s the right way to waterproof your bathroom, based on many expert contractors' experiences. Hope it helps!
1. Bathroom Waterproofing Process
1.1 Bathroom Waterproofing Project Steps
Surface Preparation → Additional Layer Application → First Waterproof Coating → Second Waterproof Coating → Initial Water Test → Protective Layer Application → Second Water Test → Project Inspection.
1.2 Waterproofing Process Breakdown
Surface Preparation: Ensure the surface is even with no visible water or debris; clean any dust, sand, or grease. For weak areas, reinforce or level as needed.
Detail Layer Application: Apply waterproof coating to vulnerable areas like pipe roots, drains, and corners, brushing twice for thorough coverage.
Coating Application: Apply a uniform first coat, followed by a second coat in a perpendicular direction. Pay special attention to corners and seams, ensuring no gaps or peeling.
Water Test: After the waterproof layer dries, conduct a 24-hour water test to check for any leaks. No damp spots below indicate a pass.
2. Bathroom Waterproofing Techniques
2.1 Vertical Pipes
Secure and Seal: Position and seal pipes with waterproof mortar, clean surrounding areas, and apply sealing material.
2.2 Floor Drains
Slope and Seal: Create a 2% slope towards the drain and seal with waterproof mortar. Reinforce the drain base with iron if necessary.
2.3 Toilet Fixtures
Seal and Reinforce: Use waterproof mortar around the base and apply a waterproof coating around joints.
2.4 Ground Connection
Seal Joints: Clean and seal with a 1mm layer of waterproof adhesive.
2.5 Wall Base Waterproofing
Elevate: Pour concrete 100mm above the floor for extra waterproofing and round off the base corners.
2.6 Floor and Wall Leveling
Drain Adjustments: Set drains 5-10mm below the floor and smooth edges for seamless drainage.
2.7 Piping Gaps
Seal Gaps: Fill gaps with C30 concrete to prevent leaks.
2.8 Wall-to-Floor Corners
Shape and Seal: Form a rounded or triangular shape with cement mortar for added protection
3. Safety and Quality Assurance
3.1 Quality Control
Understand project specifications and follow waterproofing standards. Ensure all materials are certified.
3.2 Site Protection
Limit access to essential personnel only. Protect waterproof layers during construction to avoid damage, and address any breaches immediately. With these measures in place, your bathroom waterproofing should be robust and durable, ensuring a long-lasting, leak-free result.
