How do people waterproof a concrete shower floor?
Sources
Shower Waterproofing Options: A Complete Guide - Rise
www.buildwithrise.com
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1
Waterproofing Shower Solutions: What is the best option? - Guru USA
www.guru-usa.com
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2
Build Curbless Walk In Shower on Concrete Floor (Part 4 - YouTube
www.youtube.com
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3
Three Ways to Waterproof Tile Showers - Fine Homebuilding
www.finehomebuilding.com
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4
Answer
Waterproofing a concrete shower floor is a crucial step to prevent water damage and mold growth. Here are the primary methods used today:
Sheet Membranes
Sheet membranes are plastic compounds that are attached directly to the tile backer board and shower surface. They often come with "peel and stick" technology for easy installation. These membranes are durable and provide a strong barrier against water penetration12.Liquid Membranes
Liquid membranes act like waterproof paint. They are applied with a paint roller and, once dried, form an elastomeric layer that remains flexible. This method is popular for its ease of application and effectiveness. RedGard is a well-known product in this category124.Foam Wallboards and Bases
Foam wallboards, like Kerdi Board, and foam shower bases are made from extruded polystyrene foam and provide both structural stability and waterproofing. These are often used in conjunction with other waterproofing methods for added protection14.Preslope Shower Pan
A preslope shower pan involves creating a sloped mortar base to direct water to the drain, covered with a waterproof membrane. This method ensures that any water that penetrates the tile and grout is directed towards the drain, preventing pooling and subsequent damage2.Installation Tips
- Preparation: Ensure the concrete floor is clean and free of debris.
- Application: For liquid membranes, apply the product with a roller, ensuring even coverage. For sheet membranes, peel and stick them onto the surface, ensuring no air bubbles.
- Sealing: Use silicone to seal any screw holes or penetrations to maintain the integrity of the waterproof layer.
- Corners and Seams: Pay extra attention to corners and seams by using additional fabric or tape to reinforce these areas124.
References
1. Shower Waterproofing Options: A Complete Guide - Rise2. Waterproofing Shower Solutions: What is the best option? - Guru USA3. Build Curbless Walk In Shower on Concrete Floor (Part 4 - YouTube4. Three Ways to Waterproof Tile Showers - Fine Homebuilding5. How to Waterproof a Shower (3 Awesome Methods!!) - YouTube
Author: Bunnings Warehouse
Key insights
- The importance of following guidelines and instructions when applying primer for waterproofing the bathroom floor.
- ️ It's important to wait 24 hours for the silicone to dry after filling the cracks.
- When waterproofing up to the shower recesses, the waterproofing agent needs to be applied at least 1.8 meters high.
- 🧤 Using a paintbrush instead of a roller can make the process easier and more manageable.