Installation Guide

Installation Guide
The following manufacturers have Evaluation
Service Reports that list PermaBase Cement Board
as a component:
STO: ESR-2536
Parex: ESR-2045
Senergy: ESR-2357, ESR-2358, ESR-2359, ESR-2022
Cement Board
Stucco Wall System
(CBSS)
For use in residential and low-rise
commercial applications, CBSS
provides a drainage system to help
prevent water from penetrating
behind cladding in framed construc-
tion. It complies with ASTM D 226,
protecting approved sheathings/
structural components and helping
to evacuate incidental water.
Benefits Include

Appropriate for all climates and
resists the growth of mold and
mildew

Extremely durable with
increased resistance to impact
and inclement weather

Acrylic polymers provide more
resistance to fading, cracking
and peeling

Engineered system that allows
a faster installation while
providing superior quality
control (manufactured product
that must comply with ASTM
product specifications)

Provides a 15-year exterior
warranty – the industry’s best
Limitations

Follow finish material manufac-
turer's instructions for proper
installation

Treat joints in PermaBase with
mesh tape and base coat

Thin veneer construction can
reveal planar irregularities in
framing

Minor cracking at joints may
become visible in finished
exterior surface

Exterior finishes applied directly
to PermaBase: Reinforcing
mesh must be embedded in
basecoat (consult exterior finish
manufacturer for additional
installation requirements)

Conventional Portland Cement
plaster systems: Self-furring
metal lath must be used over
PermaBase and fastened to studs

Code-Approved Water/Air
Resistive Barrier (WRB) must
first be installed to protect the
cavity (type and placement will
vary per local building codes
and/or manufacturer’s specifica-
tions, installation guidelines and
warranties)
1. Insulation
2. eXP Sheathing
3. Water/Air Resistive Barrier
4. PermaBase Cement Board
5. Reinforcing Mesh
6. Base Coat
7. Finish Coat
Cement Board Stucco
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