Installation Guide

PermaBase
®
brand Cement Board
More Reasons PermaBase Is Excellent
For Exterior Applications
Allows multiple finishes on one substrate
Saves time and labor when compared with field-applied
metal lath, brown and scratch coat installations
Works rain or shine – less affected by jobsite weather
conditions
Scores and snaps for quick installation
Qualifies for multiple-year system warranties
SIZES AND PACKAGING
Size: Thickness, Width And Length # Of Pcs Per Unit
PermaBase Cement Board
1/2" x 32" x 5' (12.7 mm x 813 mm x 1524 mm) 50
1/2" x 32" x 8' (12.7 mm x 813 mm x 2438 mm) 50
1/2" x 36" x 4' (12.7 mm x 914 mm x 1219 mm) 50*
1/2" x 36" x 5' (12.7 mm x 914 mm x 1524 mm) 50
1/2" x 36" x 6' (12.7 mm x 914 mm x 1829 mm) 50*
1/2" x 36" x 8' (12.7 mm x 914 mm x 2438 mm) 30
1/2" x 48" x 8' (12.7 mm x 1219 mm x 2438 mm) 30
5/8" x 36" x 5' (15.9 mm x 914 mm x 1524 mm) 35
5/8" x 48" x 8' (15.9 mm x 1219 mm x 2438 mm) 24
3/8" x 48" x 8' (9.5 mm x 1219 mm x 2438 mm) 40*
3/8" x 36" x 5' (9.5 mm x 914 mm x 1524 mm) 50*
3/4" x 48" x 8' (19.0 mm x 1219 mm x 2438 mm) 20*
PermaBase Underlayment
1/4" x 48" x 4' (7.9 mm x 1219 mm x 1219 mm) 60
1/4" x 36" x 5' (7.9 mm x 914 mm x 1524 mm) 60
* Special Order
For installation instructions and accessories, see page 20.
Continuous Insulation
As building codes and building
insulation requirements become
increasingly stringent, you can
count on PermaBase to help
meet your substrate needs for
Continuous Insulation (CI). CI on
the exterior envelope helps to
eliminate air and moisture leakage
as well as reduce thermal bridg-
ing, or the heating/cooling loss
transmitted through steel studs.
Methods to install the final exterior
finish over the exterior insulation
are now being refined, including
z-furring channels, batten strips
and direct fastener applications.
Use in all types of construction,
including commercial, residential
and multi-family.
Advantages Of Creating
Continuous Insulation With
PermaBase:

Provides better thermal comfort,
lowers heating and cooling
costs, reduces likelihood of
trapped moisture

Helps mitigate the loss of heat/
air conditioning by insulating
the studs

Allows multiple finishes on one
substrate

Works in all climates – adapt-
able to varying regional system
requirements

Guarantees 15-year exterior
warranty – the industry’s lead-
ing warranty

Speeds up your schedule –
faster to install than traditional
methods
PHYSICAL PROPERTIES
Property Method Test 1/4" 7/16" 1/2" 5/8"
PLUS
Water Absorption % ASTM C 473 <8 10 <8 <8
By Weight/24 Hours
Flexural Strength (psi) ASTM C 947 >1750 750 750 >1000
Fastener Holding ASTM D 1037 >85 >90 >90 >90
(Wet And Dry, lbs.)
(0.400" head diameter)
Weight (psf) ASTM C 473 1.8 2.1 2.9 3.65
Freeze/Thaw (Cycles) ASTM C 666 100 100 100 100
Per ANSI A118.9
Procedure B
Flame Spread/ ASTM E 84 0/0 0/0 0/0 0/0
Smoke Developed
Compressive Strength ASTM D 2394 N/A N/A 2250 2250
(psi) (Indentation)
Wind Load ASTM E 330 N/A 30 40 40
(psf, Studs 16" o.c.)
Thermal “R”/k Value Property of Material 0.2/2.7 0.28/2.7 0.37/2.7 0.47/.2.7
Bending Radius (ft.) Property of Material N/A 5 5 5
Falling Ball Impact ASTM D 1037 pass pass pass pass
(12" Drop)
Linear Variation ASTM D 1037 <0.07% 0.05% 0.05% 0.05%
(Due to change in
moisture content)
Fungus Resistance ASTM G 21 ( No growth ) ( No growth ) ( No growth ) ( No growth )
Mold Growth On Surface ASTM D 3273* 10 10 10 10
* When tested by an independent laboratory per ASTM D 3273 (“Standard Test Method for
Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber”),
PermaBase achieved a panel score of 10, the highest score possible, indicating no mold growth
under the laboratory test conditions. The use of PermaBase in actual installations may not
produce the same results as were achieved in controlled laboratory conditions. No material
can be considered “mold proof,” nor is it certain that any material will resist mold indefinitely.
10