Proper Bond Breaker Placement in Bathrooms Prior to Waterproofing

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Applying a Bond Breaker in Bathrooms Before Waterproofing: A Comprehensive Guide

When it comes to waterproofing a bathroom, the application of a bond breaker is a critical step. Bond breakers are used at all the junctions where different surfaces meet—such as where walls meet floors, walls meet other walls, and in shower niches or recesses. They’re also important inside the drain, placed between the cement bedding and the PVC pipe, ensuring that the membrane doesn’t get stuck in sharp corners.

Why is a Bond Breaker Important?

The main purpose of a bond breaker is to allow the waterproofing membrane to remain independent at these junctions. This independence prevents the membrane from cracking or tearing at sharp angles. By providing a flexible curve, the bond breaker ensures that the membrane can expand and contract without losing its integrity.

Best Practices:

When working with Class 3 membranes, it’s essential to use neutral cure silicone or a compatible bond breaker recommended by the manufacturer. Always follow the manufacturer’s guidelines to ensure compatibility and the best performance.

This is How I Do It:

In my own practice, I always ensure to apply the bond breaker carefully at these crucial points to guarantee a durable, long-lasting waterproofing solution.

Always consult and adhere to the specific recommendations provided by the membrane and bond breaker manufacturers to achieve the best results.