How to Guide

Cement Board
Masonry Veneer Wall
System (CBMV)
Combine the strength and durability
of PermaBase with the popular
beauty of stone and thin brick
veneers. Use in residential and
low-rise commercial applications.
Cement Board Masonry Veneer
Wall System is designed to:
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Offer a complete, engineered
solution for installation
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Provide increased performance
by utilizing polymer modified
adhesive mortars (designed for
hanging materials) versus type S
and N mortars (developed for
stacking materials)
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Speed up your schedule –
faster, easier and cleaner than
traditional metal lath/scratch
coat method
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Offer the ability to incorporate
an effective water-management
system (type and placement of
water barrier will vary based on
local codes and/or warranties)
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Approved for use in ASTM C 1780,
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 C 1780
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IBC/IRC Compliant. Meets
ASTM C 1325.
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PermaBase is approved as a
substrate for direct applied
finishes, tile, stone and thin
brick in exterior applications, as
outlined in ICC-ES Evaluation
Report ESR-1510.
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PermaBase is suitable for use in
combustible and noncombustible
construction under the IBC
and IRC, as outlined in ICC-ES
Evaluation Report ESR-1510.
Designs you can achieve
with this system:
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Use for a variety of building
exteriors with manufactured
or natural stone and thin brick
veneers
Note: A code-approved Water/Air
Resistive Barrier (WRB) must first
be installed to protect the cavity.
Limitations
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Sheathing selection and installa-
tion varies according to type of
wall construction
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Code-approved Water/Air
Resistive Barrier (WRB) must be
installed to protect the cavity
(type and placement will vary
per local building codes and/or
manufacturer’s specifications,
installation guidelines and
warranties)
1. eXP Sheathing
2. Plywood Or Other Structural
Sheathing
3. Water/Air Resistive Barrier
4. PermaBase Cement Board
5. 4" Alkali-Resistant Mesh Tape
6. Liquid Water/Air Resistive
Barrier (WRB)
Alternate Location
7. Polymer Modified Adhesive
Mortar
8. Thin Brick
9. Manufactured Stone
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Thin Brick Exterior Metal Stud Assembly
Manufactured Stone Exterior Wood Stud Assembly
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