User Guide

Description
PermaBase brand PLUS
TM
Cement
Board is a lightweight, durable
backerboard made from portland
cement, aggregates, polystyrene
beads and fiberglass mesh.
Reinforced edges permit fastening
closer to the edge than competi-
tive products.
Interior Applications
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Shower and tub enclosures
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Garden/whirlpool tubs
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Countertops/backsplashes
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Steam rooms and saunas
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Swimming pool enclosures
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Floor underlayment
Exterior Applications
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Tile applications
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Decks
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Outdoor kitchens/grills
Features/Benefits
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25% lighter
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Easier, cleaner cut
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Patented EdgeTech
®
reinforced
edge
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Low water absorption
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Mold resistant
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Manufactured in accordance
with ASTM C 1325
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Approved for use in 1-hour
and 2-hour rated assemblies
and is UL Classified
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IBC/IRC compliant
Installation
With the printed side up, use a
straightedge and pencil to mark
line. Use utility knife to score/cut
the glass mesh. Snap the board
and cut through the now visible
glass mesh on the other side.
National Gypsum recommends
the use of PermaBase tape and
PermaBase screws to complete
the installation.
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Joints should be treated with
alkali resistant fiberglass mesh
tape set in a latex-Portland
cement mortar.
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Maximum wall framing pacing
should not exceed 16" o.c.
and must be designed to limit
deflection to L/360 under all
live and dead loads.
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PermaBase PLUS is not a
water barrier. Consult local
building code for moisture
barrier requirements.
Warranty
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PermaBase PLUS carries a
Lifetime Limited Warranty for
interior applications
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PermaBase PLUS carries a
15-year Limited Warranty for
exterior applications
Applications
Walls
Countertops/Backsplashes
Fireplaces
Showers
Floors
Outdoor Kitchens
PermaBase brand PLUS
TM
Cement Board
Technical Data
STANDARD SIZES
Thickness 7/16" (11.1 mm)
Width 36" (914 mm)
Length 60" (1524 mm)
Weight 2.1 lbs./sq. ft. (32 lbs. per sheet)
Water Absorption % by Weight/24 hrs.
per ASTM C 473 <10%
Fungus Resistant per ASTM G21 0 (No Growth)
Mold Resistant per ASTM D 3273 10 (Best Score)
PBPLUSbooklet20131008a.indd 4-5 10/11/13 10:34 AM