Installation Guide
Do you want to Install more square feet with less effort, waste, transportation time and have a warranty
that will guarantee you no call-backs and down time? Did you know that the average waste with cement
board
is
a
r
o
u
nd
15%
t
o
2
0
%
?
B
AC
K
E
R-Lite
will
c
u
t that
to
3%
to
5%
.
In
tro
ducing
th
e
B
AC
K
E
R-Lite
;
it's
an
ultra light 42 lb. roll of an "uncoupling" underlayment system for tiled flooring that allows the installer to
cover
323
sq
.
f
t
.
with
le
ss
EF
FO
RT
,
T
IME
&
E
NERGY
which
e
quals
mor
e
mo
ney
.
BACKER-Lite is an extremely versatile floor
underlayment designed specifically for tile
and natural stone installations.
BACKER-Lite neutralizes stresses and isolates cracks in the
substrate, installs over difficult substrates, is lightweight and
saves installation labor time versus traditional cement
board materials.
The easy carry rolls are made of lightweight polyethylene with specially undercut pockets achieving a very
high rigidity combined with ideal bonding to thin-set mortars. With an installation height of
approximately 1/8 (3m), BACKER-Lite easily transitions too there surfaces. Finally, the materials elastic,
rot proof, and resistant to aggressive substances and liquids such as alkalis, solvents and oils.
BACKER-Lite is approved for Ceramic, Porcelain and Natural Stone.
Material
·
BACKER-Lite is Waterproof! Its HOPE polyethylene provides Moisture Control, Flexibility, resistance to mold
and mildew and provides a reliable waterproof layer in the floor system. Its polyethylene composition protects the
subfloor from moisture penetrating through to your floor. This is most important in today's building environment.
·
BACKER-Lite offers superior Point Load Distribution! Its HOPE polyethylene with column like pattern
creates strength for support and load distribution. The Cylinder design allows moisture vapor management, so
where moisture can be a concern, BACKER-Lite allows moisture vapor to wick into the cylinder columns patterned
throughout the underlayment.
·
BACKER-Lite Eliminates Cracking and Unstable Substrates! It offers an uncoupling layer through a non•
woven fleece and column like structure which allows in-plan movement through the support columns thus
eliminating the major cause of cracking and delaminating of the tiled surface.
·
BACKER-Lite has The Ultimate Locking System! A unique polyethylene scrim located on top of the
underlayment locks the tile flooring to the underlayment creating a one part system that is able to float over
the movement of your home. This integral part of the BACKER-Lite is what separates the Cl mat from it competition.
THE INSTALLERS CHOICE ...THE PERFECT SOLUTION
Dural BACKER-Lite Installation Instruction
DURAL USA acknowledges that modified and non-modified thin set mortars will work with our BACKER-Lite
underlayment. Dry times can vary with different type thin set products. Please refer to thin set manufacturers
recommendations for best results with these type of "uncoupling" underlayments or call DURAL USA for
recommended thin-sets. DURAL USA also recommends referencing the Tile Council of North America, Inc. 2009
TCNA Handbook for Ceramic Tile Installation before your installation.
Approved Substrates
Wood Subfloors (APA approved substrates only)
·
16" on-center joist spacing, minimum subfloor thickness: 5/8"
·
19.2" on-center joist spacing, minimum subfloor thickness:3/4"
·
24" on-center joist spacing, minimum subfloor thickness: 1-1/8" (double layer: 3/4"+3/8")
Limitations
-
Minimum 2x2 tiles
-
When installing natural stone, subfloor requirements are double layer regardless of
joist spacing.
Concrete
- Over any structurally sound and even concrete subfloor
·
Green concrete/young concrete (concrete cured less than28 days)
with Wood Substrate
·
On or below grade concrete subject to moisture migration (BACKER-Lite seams must be taped to create moisture
barrier)
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LATEX-PORTLANDCEMENT
MORTAR BONDCOAT
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