Cement Board

PermaBASE PLUS® Cement Board

Same qualities as PermaBASE® Cement Board but is 15% lighter



Technical Data Sheet

Lightweight, rigid substrate

For interior and exterior applications
  • Moisture & Mold Resistant.
  • Easier Cut & Faster Install.
  • Smoother Surface / Stronger Bond.
  • EdgeTech® Reinforced Edge.

PermaBASE PLUS® Cement Board has the same qualities built into PermaBASE® Cement Board but is 15% lighter. When you need to lighten your load, consider PermaBASE PLUS for both interior and exterior applications.


  • Stays intact when exposed to water; will not rot, disintegrate or swell – built for the long run.
  • Achieves the industry’s lowest water-absorption rating (ASTM C473) – offering better installation.
  • Helps inhibit mold growth with the highest possible score on mold tests (ASTM D3273 and ASTM G21).
  • Resists impact and remains dimensionally stable – extending the life of your project.
  • Holds up to toughest conditions.
  • Lightweight and easy to cut – speeding up installation.
  • Reduces job site waste – easier, cleaner cut.
  • Durable substrate for direct-applied coating systems.
  • Meets UL classifications for one- and two-hour fire-rated assemblies.
  • Building code approved – one substrate that does the job of many

Interior Applications

Exterior Applications


PermaBASE PLUS® Cement Board has achieved UL GREENGUARD Gold Certification.

Video: Kitchen Backsplash Installation with PermaBASE PLUS® Cement Board



Products that suit any project criteria

Product Details

Project Area:

Cement Board Masonry Veneer, Cement Board Stucco, Outdoor Living, Shower, Bathtub, Accent Wall, Floors, Sauna / Steam Room, Kitchen, Heat Shield, Architectural Coatings


EdgeTech® Reinforced Edge


7/16", 1/2", 5/8"


36", 48"

Frequently Asked Questions

Ready to answer your product and installation questions

What kind of fasteners do I use to install PermaBASE PLUS® Cement Board?

Corrosion resistant screws or galvanized roofing nails. Strongly suggest PermaBASE screws since they do not have nibs like competitor screws.

What do I tape the PermaBASE board joints with?

3" or 4” Alkali-resistant mesh tape and polymer-modified mortar mix.

How much lighter is PermaBASE PLUS?

PermaBASE PLUS is 15% lighter than standard PermaBASE Cement Board for the same thickness

What is the fastener spacing for interior wall applications?

Every 8” o.c. along the perimeter and field of board.

Related Resources

Product details and technical documentation

Sustainability Documents

Technical Data Sheet

Resources home

International Distributors

For International Distributors of Unifix products, click below

Explore Now
Contact Us home

Expert Connection

Discuss your project with Unifix experts who can help guide your product selection.

Get In Touch

Need Technical Information?

Call 1-800-NATIONAL®

Unifix is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.