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Get an edge on the elements, outdoors and in.

Curb appeal is important when it’s time to sell your home. But in the meantime, you and your family will be the ones who most appreciate how great it looks when you turn into the driveway. National Gypsum’s PermaBase® Cement Board gives your home an appealing edge outdoors as well as indoors. When you ask for PURPLE®, you enjoy the long-term advantages of cement board that supports exterior finishes such as thin brick, stucco and manufactured stone. It’s moisture- and impact-resistant to keep your house looking market-ready, year after year.

Related FAQs

  • Who makes PURPLE® products, and how long have they been around?

    National Gypsum has been making PURPLE® products for more than a decade.

    Headquartered in Charlotte, N.C., National Gypsum is one of the largest gypsum drywall manufacturers in the country. The company owns and operates a network of drywall, joint compound and cement board plants across the United States and Canada.

  • What is cement board?

    Cement board – also known as backerboard – is specially designed for use in place of drywall behind tile in the wet areas in bathrooms and kitchens. It’s hard, durable, naturally moisture- and mold-resistant, and won’t rot, disintegrate or swell when exposed to water. It’s ideal for use behind tile in showers, tubs, backsplashes and countertops, and behind exterior finishes such as thin brick, stucco and manufactured stone.

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