Does Durock cement board need waterproofing?

The Importance of Waterproofing Durock Cement Board

If you’re planning on using Durock cement board in your next home renovation project, it’s essential to understand the importance of waterproofing. While Durock is a durable and reliable material, it’s not naturally waterproof. Without proper waterproofing, your project could be at risk of water damage, mold, and other costly issues.

Why Durock Needs Waterproofing

Durock is a type of cement board that’s made from a blend of Portland cement, aggregate, and glass mesh. It’s commonly used as a substrate for tile, stone, and other finishes in wet areas like bathrooms, kitchens, and laundry rooms. However, because it’s made from cement, it’s not naturally resistant to water. If water seeps into the board, it can cause swelling, warping, and other damage.

How to Waterproof Durock

Luckily, waterproofing Durock is relatively simple. The most common method is to use a waterproofing membrane like RedGard or Hydro Ban. These products are applied to the surface of the Durock before the tile or stone is installed. They create a barrier that prevents water from penetrating the board, while still allowing moisture to evaporate.

Another option is to use a liquid-applied waterproofing membrane like Mapei’s Kerdi. These products are applied using a roller or brush and dry to form a flexible, waterproof barrier. They are commonly used in wet areas like showers, tub surrounds, and other areas of high moisture.

Why Waterproofing Matters

Waterproofing your Durock cement board may seem like an extra step, but it’s essential to the longevity of your project. Without proper waterproofing, you risk costly repairs and potential health hazards like mold. By taking the time to waterproof your Durock, you can ensure that your renovation project will stand the test of time.

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In Conclusion

Durock cement board is a durable and reliable material for home renovation projects, but it’s important to remember that it’s not naturally waterproof. By waterproofing your Durock, you can protect your project from water damage, mold, and other costly issues. Whether you choose a waterproofing membrane or a liquid-applied option, be sure to do your research and select a product that’s right for your project.


Author: superwhat