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Yes. That is why it's recommended to use instead of gypsum drywall in wet applications such as bathrooms/showers, etc.

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Q: Is cement board waterproof
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Related questions

What is a waterproof cement?

concrete


What is waterproof cement?

Waterproof cement is a type of cement that is formulated to resist water penetration and moisture ingress. It is commonly used in projects where water resistance is important, such as basements, swimming pools, and other water-retaining structures. Waterproof cement typically contains additives that enhance its resistance to water and help prevent water damage.


What is waterproof prtland cement?

Thhis cement is impregnated with sodium or aluminium stearate.


Is marbalite waterproof?

Cementuous materials are not waterproof. Hydraulic cement is the closest they come, but even it becomes saturated.


What type of backer board do you use when tiling a shower with a steam sauna?

Cement board, at most contractor supply places it will be called DUROCK cement board or Permabase cement board. = =


Do you need a doctor if inhaling cement board?

If you are inhaling cement board, you need a qualified safety professional or industrial hygienist to show you how to do the work without inhaling cement board.


Why is polythene laid in a cement concrete pavement?

To form a waterproof barrier.


What is a cement board used for?

A cement board can be used on the exterior of buildings . Cement boards are also convenient when making patios and decks as an extension in modern homes


Does cement board contain asbestos?

Older cement board may contain asbestos, and then it is properly called "asbestos cement board." Cement board more recently manufactured should not contain asbestos. The only way to know whether a particular cement board does or does not contain asbestos is to ask the manufacturer (if you know who made it) or have a sample collected from it by a qualified sampling technician and have the sample analyzed by a qualified laboratory.


Is cement board fireproof?

yes


How much does a 4x8 sheet of cement board weigh?

A 4x8 sheet of cement board typically weighs around 75 to 100 pounds, depending on the thickness of the board.


Is rubber cement waterproof?

yup but if your using it on electrical or papery things coat the thing entirely