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How to Waterproof Drywall Behind a Shower Surround: Step-by-Step Guide

Learn the best method to waterproof drywall behind a shower surround using cement board and waterproof membranes for a durable, moisture-resistant finish.

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Video transcript

To waterproof drywall behind a shower surround, first use a cement board rather than regular drywall. Next, apply a waterproof membrane such as a liquid waterproofing product, and ensure all seams are taped and sealed. Finish by installing the shower surround according to the manufacturer's instructions.

Questions and answers

  1. Why should I use cement board instead of regular drywall behind a shower surround?

    Cement board is moisture-resistant and durable, making it an ideal backing material for wet areas like showers, whereas regular drywall can deteriorate and promote mold growth when exposed to water.

  2. What type of waterproof membrane is best for shower walls?

    Liquid waterproofing membranes are commonly used because they create a seamless barrier that adheres well to cement boards and effectively prevents water infiltration.

  3. How do you properly seal seams behind a shower surround?

    All seams should be taped with waterproof mesh tape and coated with waterproof membrane to prevent water penetration and ensure a continuous moisture barrier.

Related questions

Continue exploring

For more detailed tutorials on bathroom waterproofing and renovation, explore our related guides on installing cement boards, applying waterproof membranes, and maintaining moisture barriers in wet areas to ensure a long-lasting and mold-free shower space.