Installation Instructions

Suboor
Construction/ Comments Notes
Materials
Congoleum
• UnderFlor and QuikStik UnderFlor are
underlayment systems for oating
installations of DuraCeramic Origins,
DuraCeramic Dimensions and Ovations
over a variety of substrates in lieu of
direct bonding. See detailed
instructions on page 7.
Wood
• Double layer construction over joist
or trusses on 16" or 19.2" centers with at
least 18" of well-ventilated air space.
• Install 1/4" or heavier underlayment
over strip wood, single layer wood oors
and APA-rated Sturd-I-Floor Systems.
Underlayment
• APA underlayment grade plywood
with fully sanded face.
• Hardwood and veneer
underlayment panels.
• Lauan plywood, particleboard,
oriented strand board and chipboard
create a higher risk for installation
and adhesive failure and are not
recommended unless warranted by
the panel manufacturer or supplier.
• Not recommended over cement
backer-boards, glass mesh mortar
units or acoustical cork.
Concrete
• On, above and below grade level.
• Radiant-heated oors not to
exceed 85°F (29°C).
• Minimum 100-pound dry density
• Installation over gypsum-based
acoustical toppings is not
recommended unless Congoleum
UnderFlor or QuikStik UnderFlor is used.
• Smooth, non-cushioned sheet
ooring and vinyl composition tile.
• Embossed non-cushioned and thin
cushioned vinyl ooring can be
prepared with embossing leveler
in residential applications.
• Do not install over soft, heavy
cushioned oors, ooring with a
cushioned backing, self-adhering
tile or tile installed below grade level.
• Ceramic, marble and granite.
• Not recommended. Remove
• Portland cement-based compound
such as Ardex Feather Finish,
Mapei Plani-Patch or equal.
• Gypsum-based patching
compounds are not recommended.
Congoleum UnderFlor
UnderFlor is an all-in-one underlayment system that provides
an economical solution for installing DuraCeramic Origins,
DuraCeramic Dimensions and Ovations as a oating ooring
system over a variety of suboor surfaces. Now, one under-
layment covers it all; wood, concrete, most old hard surface
ooring, gypsum topping, even old adhesive residue and
painted surfaces.
Congoleum UnderFlor is constructed in 6’ wide rolls, and
since it is a oating underlayment, it requires no fasteners or
special tools so it’s quick and easy to install.
Roll Sizes
UF120 – 6' x 180' (120 sq. yds. or 1080 sq. ft.)
UFB07 – 6' x 16.7' (11.11 sq. yds. or 100 sq. ft.)
Recommended Use
• Residential applications on all grade levels
• Interior use in dry, heated areas
• Do not install over ramps, in showers or other wet areas
General Information
• Always roll sheets of Congoleum UnderFlor tightly around a
tube with the vinyl side out for storing and transporting.
Avoid distorting Congoleum UnderFlor.
• Condition the room and all ooring materials at a constant
temperature between 65°F (18°C) and 85°F (29°C) for
48 hours prior to, during and 48 hours after installation.
• All UnderFlor underlayment and nished ooring must be
installed with a 1/4" space around the perimeter of the room
to allow for expansion and contraction of the ooring system
and suboor. Undercut door casing and slide nished oor-
ing under for a nished appearance.
• Use DS100 Adhesive only for installing Congoleum
DuraCeramic Origins, DuraCeramic Dimensions and Ova-
tions over Congoleum UnderFlor. Hard setting adhesives
should not be used with Congoleum UnderFlor.
Congoleum UnderFlor Installation
Install Congoleum UnderFlor with the vinyl side down just
prior to installation of nished ooring. Determine the ap-
propriate seam location and direction of the underlayment
(depending
on the nished ooring selection).
Important
For tile installation, position UnderFlor with seams at least 4"
away from the joints in the nished oor tile. (Fig. 4).
Fig. 4 – Position seams at least 4" away
from tile joints.
The suboor
system for
oating surface
must be
smooth, solid
and dry.
Suboor must
be solid and
free of move-
ment.
Install according
to panel manu-
facturers’ written
instructions.
Moisture vapor emis-
sions not to exceed 5 lbs.
or 80% RH.
Conrm
adequate
adhesion to
substrate.
Light Weight
Concrete
(Residential
Application only)
Resilient
Floor
(See WARN-
ING on inside
cover)
Must be single
layer, fully adhered
and well bonded.
Remove wax or
polish.
Fill grout joints
and level oor.
Ceramic
and Stone
Carpet/
Laminate
Patching
Compound
Refer to manufac-
turers’ instructions
for use and
applications.
Suboor Recommendations
6
UnderFlor
or QuikStik
UnderFlor
56