Prevent water intrusion
- Waterproof Core
- Moisture & Mold Resistant
- EdgeTech® Reinforced Edge
- Easy to Cut
PermaBASE WP® Waterproof Cement Board combines the strength and benefits of PermaBASE® Cement Board with a proprietary waterproofing formulation. Intended for use in interior wet areas around tubs and showers, PermaBASE WP is perfect for instances where liquid waterproofing has historically been applied over cement boards.
Advantages
- Waterproof core prevents water from causing harmful damage.
- Passes ANSI A118.10 for waterproofness.
- Helps inhibit mold growth with the highest possible score on mold tests (ASTM D3273 and ASTM G21).
- Smooth surface; strong bond.
- Lightweight and easy to cut.
Interior Applications
- For interior application information, click here.
- Lifetime Limited Warranty; Interior applications.
- 30-year Limited Warranty for Commercial Interior applications.
Video: PermaBASE WP® Waterproof Cement Board
Specifications
Products that suit any project criteria
Product Details
Applications:
Shower, Kitchen, Fireplace, Bathtub, Accent Wall, Heat Shield, Floors, Sauna / Steam Room
Edge(s):
EdgeTech® Reinforced Edge
Thickness(es):
1/2"
Width(s):
36", 48"
Related Resources
Product details and technical documentation
Tips & Tools
Detailed information to support your next project
Why use waterproof cement board
Learn why waterproof cement board is the perfect choice for your shower and tile installation project and what you should know before you buy
View
PermaBASE WP Installation Guide
Detailed instructions for the installation of PermaBASE WP.
View
PermaBASE Building Products Construction Guide
Comprehensive guide to using and installing all PermaBASE products.
ViewFrequently Asked Questions
What makes PermaBASE WP waterproof?
Special additives are added to the cement core to provide the waterproof performance to meet ANSI A118.10 requirements for waterproofness.
What do I tape the PermaBASE WP board joints with?
2” Alkali resistant mesh tape and mortar mix.
How do I create a waterproof installation?
All joints and fastener heads must be treated with waterproofing material to complete the waterproof installation.
What kind of fasteners do I use to install PermaBASE WP?
Corrosion resistant screw or galvanized roofing nails. Strongly suggest PermaBASE screws since they do not have nibs like competitor screws.
Compare Products
Cement Board
PermaBASE WP® Waterproof Cement Board
Product Type
- Cement Board
- Waterproof
- Lightweight
Sustainability
GREENGUARD Certified, GREENGUARD Gold Certified
Description
Waterproof core for wet areas where waterproof applications are desired.
Cement Board
PermaBASE UltraBacker® Cement Board
Product Type
- Cement Board
- Lightweight
Sustainability
GREENGUARD Certified, GREENGUARD Gold Certified
Description
Provides an exceptionally hard, durable surface and can withstand prolonged exposure to moisture.
Cement Board
PermaBASE® Cement Board
Product Type
- Cement Board
- Continuous Insulation
Sustainability
GREENGUARD Certified, GREENGUARD Gold Certified, HPD - Health Product Declaration
Description
A durable surface designed to withstand prolonged exposure to moisture.
Cement Board
PermaBASE PLUS® Cement Board
Product Type
- Cement Board
- Lightweight
Sustainability
GREENGUARD Certified, GREENGUARD Gold Certified
Description
Same qualities as PermaBASE® Cement Board but weighs 15% less
Foam Tile Backer
PermaBASE™ Foam Tile Backer
Product Type
- Foam Tile Backer
- Waterproof
- Lightweight
Sustainability
GREENGUARD Certified, GREENGUARD Gold Certified
Description
Waterproof tile backer board designed for interior tile and stone applications.
Cement Board
PermaBASE™ Cement Board Screws
Product Type
- Cement Board
- Foam Tile Backer
Sustainability
N/A
Description
Corrosion-resistant screws designed for use with cement boards and foam tile backer.
Cement Board
PermaBASE™ Cement Board Tape
Product Type
- Cement Board
- Foam Tile Backer
- Continuous Insulation
Sustainability
N/A
Description
Conceals and reinforces joints between PermaBASE® Cement Board.
Designs & Resources
Find product details and technical documentation in the Design & Resource Center.
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Expert Connection
Discuss your project with PermaBASE experts who can help guide your product selection.
Get In TouchNeed Technical Information?
Call 1-800-NATIONAL®
National Gypsum Company is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.