Technical Specifications

PermaBASE
®
Cement Board
Technical Information
800.NATIONAL • 800.628.4662
09 28 00 / NGC
Job Name _______________________________________________________________________________
Contractor _____________________________________________________ Date ___________________
Submittal Approvals: (Stamps or Signatures)
DESCRIPTION
PermaBASE® Cement Board is a rigid substrate made of Portland
cement, aggregate and glass mesh. It has an exceptionally hard,
durable surface that can withstand prolonged exposure to moisture.
Use it as an underlayment or backing surface in a variety of interior
and exterior applications, including (but not limited to) tub and shower
surrounds, countertops, oors, and for cement board stucco and
adhered masonry veneer wall systems.
BASIC USES
Applications
Interior
PermaBASE® Cement Board is a superior underlayment for many
interior applications, including kitchen countertops and backsplashes;
bathroom shower and tub enclosures, garden and whirlpool tubs,
and steamrooms and saunas; ooring for kitchens, bathrooms,
entryways, foyers and laundry rooms; walls for bathrooms, accent
areas and replaces; and special additions, such as swimming pool
and whirlpool decks and enclosures.
Exterior
PermaBASE provides an excellent substrate for many exterior
applications, including Cement Board Masonry Veneer Wall System
(CBMV), Cement Board Stucco System (CBSS), Continuous Insulation
(CI), and Exterior Insulation and Finish Systems (EIFS).
PermaBASE allows the combination of exterior nishes on one continuous
substrate, providing greater design exibility. It works well for
commercial exteriors, residential exteriors, outdoor kitchens and decks.
Advantages
• Patented EdgeTech® Technology allows for closer fastener application
of nails or screws at the edge without crumbling or spinout.
• Use as a substrate for direct-applied nishes, tile, stone and thin brick in
exterior applications (as outlined in UL Evaluation Report ER22158-01).
• Use in combustible and non-combustible construction under the
IBC and IRC (as outlined in UL Evaluation Report ER22158-01).
• Resists the growth of mold per ASTM D3273 with a score of 10, the
best possible score.
• Can be cut using a standard utility knife and straightedge. With the
unique PermaBASE core composition, little or no additional labor is
needed to clean the edge after a cut.
• Is impact resistant, extremely durable and dimensionally stable.
It has excellent overall exural, compressive and tensile strength
characteristics.
• IBC/IRC Compliant. Meets ASTM C1325.
• Is highly moisture resistant, and will not rot, disintegrate or swell
when exposed to water.
• Use 1/2 in. (12.7 mm) PermaBASE® in 1-hour and 2-hour rated
assemblies (UL Classied).
• Achieves the lowest water-absorption rating of any cement board
per ASTM C473, oering better tile bond.
• Achieves GREENGUARD and GREENGUARD Gold Certication.
GREENGUARD Certied products are certied to GREENGUARD
standards for low chemical emissions into indoor air during product
usage. For more information, visit: ul.com/gg.
• Qualies as a low-VOC emitting material by meeting California
Specication 01350. For more information, visit:
calrecycle.ca.gov/greenbuilding/specs/section01350.
Heat Shield Applications
• UL approved for heat shield/wall protector per ANSI/UL 1618 and
ULC 632.
• Protects combustible walls.
• Reduces required clearance from wall by 40 percent.
• Lightweight and easy to install.
Cement Board Stucco Wall System (CBSS)
• Engineered system that allows a faster installation while providing
superior quality control (manufactured product that must comply
with ASTM product specications).
• Provides a 15-year exterior warranty – the industry’s best.
Cement Board Masonry Veneer Wall System (CBMV)
• Engineered system that allows a faster installation while providing
superior quality control (manufactured product that must comply
with ASTM product specications).
• Approved for use in ASTM C1780, and cement board is cited as
an approved substrate for this system by the Masonry Veneer
Manufacturers Association (MVMA): Installation Guide and Detailing
Options for Compliance with ASTM C1780.
• Easily allows for the inclusion of continuous insulation into the
assembly.
• Speed up your schedule – faster, easier and cleaner than traditional
metal lath/scratch coat method.
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