Installation Guide

14
Installation Guide
Fasteners
PermaBase corrosion resistant screws
or equivalent, 1-1/4" or 1-5/8" long,
for use with wood framing. Type
S-12 screws or equivalent, 1-1/4" or
1-5/8" long, for use with 20 gauge
or heavier steel framing.
Galvanized roofing nails, 1-1/2" long
with hot dipped galvanized coating
for use with wood framing. Nails
should meet Federal Specification
#FF-N105B/type 2 style 20.
Joint Reinforcement
PermaBase mesh tape must be used
on all edges and cuts made to size.
Use 2" wide polymer-coated (alkali
resistant) mesh tape for interior
applications and 4" wide polymer-
coated (alkali resistant) mesh tape
for exterior applications.
Bonding Materials
Treat joint and set facing material,
preferably with latex-Portland cement
mortar or with dry-set (thin-set)
mortar. All mortars should comply
with ANSI A118.1, A118.4 or
A118.15 standards. Type 1 organic
adhesive meeting ANSI A-136.1 may
be utilized for interior use only.
Installation Accessories
For a seamless installation, we recommend PermaBase
®
Tape
and PermaBase
®
Screws.
Interior
Applications
An ideal substrate for interior
applications, such as:

Shower and tub enclosures

Garden/whirlpool tubs

Countertops

Backsplashes

Steamrooms and saunas

Swimming pool and whirlpool
decks and enclosures

Floor underlayment
 •Entryways
 •Kitchens
 •Bathrooms
 •Foyers
 •Laundryrooms
Installation
General: All framing should
comply with local building code
requirements and be designed to
provide support with a maximum
allowable deflection of L/360
under all intended loads. Framing
members should be spaced a
maximum of 16" o.c.
Cut or score PermaBase on printed
side of panel. 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. Install tile and tile setting
materials in accordance with current
ANSI specifications and Tile Council
of North America (TCNA) guidelines.
Control Joints: For interior
installations, allow a maximum
of 30 lineal feet between control
joints. A control joint must be
installed but not limited to the
following locations: where expan-
sion joints occur in the framing
or building (discontinue all cross
furring members located behind
joint); when boards abut dissimilar
materials; where framing material
changes; at changes of building
shape or structural system; at each
story separation. Place control
joints at corners of window and
door openings, or follow specifica-
tions of architect. Control joint cav-
ity shall not be filled with coating
or other materials.
Walls And Ceilings
Wall Framing: Edges of
PermaBase parallel to framing
should be continuously supported.
Provide additional blocking
when necessary to permit proper
PermaBase attachment.
Do not install PermaBase directly
over protrusions from stud plane,
such as heavy brackets and fas-
tener heads. Studs above a shower
floor should either be notched or
furred to accommodate the thick-
ness of the waterproof membrane
or pan. The surround opening for
a tub or precast shower receptor
should not be more than 1/4"
longer than unit to be installed.