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The installation process is
critical to the aesthetic appeal and acceptance of the finished Urban
Wallcovering Veneer .
Surface preparation, adhesive and primer selection, environmental
condition and quality workman-ship are the key elements for a successful
installation. Thus,
professional installation is highly recommended. Please visit your local paint
supplier for installers in your area. Urban
Wallcovering
cannot be held liable for faulty installation.
Storage:
Urban Wallcovering veneer should be kept in the
manufacturer's packaging until needed for installation. Store wood
wallcovering in a clean, dry, secure area that
has low humidity and a stable temperature range.
Inspection of Products:
Examine all sheets of Urban Wallcovering for
quality and compliance with the approved specification before starting
installation.
Adhesives:
Do not use clear or strippable adhesives. Do not cut your adhesive
with water.
The unique backing laminated to the wood veneer face helps stabilize the
veneer under normal temperature and humidity conditions. Generally, the
moisture from the adhesive bleeds into the substrate because of the
backing. If the substrate will not allow the moisture in the adhesive to
bleed into the substrate, then off gases from the adhesive may cause
bubbling or failure of the veneer to adhere to the substrate (See
"Preparation of Wall Surface."). Avoid using adhesives with
high moisture content. To purchase adhesive please visit your local
paint supply store. See below:
Use one of the following approved adhesives:
Sure Grip 111 Heavy Duty Clay Based Wallcovering
Adhesive, Mfr. Zinsser
Environmental Conditions:
Areas to receive wood wallcovering should
be environmentally controlled by a permanent HVAC system. Maintain a
temperature range of 65 - 85 degrees Fahrenheit, with not more than 50%
relative humidity, for a period of not less than 4 days prior to
installation and maintained thereafter.
Preparation of Wall Surface:
NEW DRYWALL - Finish gypsum
board to comply with AWCI (Association
Wallcovering
and Ceiling Industries) specifications, Level 4 or greater. All joints
and interior angles shall have tape embedded in joint compound and
threeseparate coats of joint compound applied over
all joints, angles, fastener heads, and accessories. All joint
compound shall be smooth and free of tool marks and
ridges. The surface shall be clean, smooth and dry prior to the
application of wood veneer. Check the moisture content of the wall with a
moisture meter. Moisture content shall not be in excess of 7%. If you are
installing veneer in extremely low humidity areas such as the
Southwest, then a primer such as Vinyl Prep 909, mfr. Romans Adhesives, Inc.)
should be used. This will help ensure that a
good bond between the substrate and wood
wallcovering occurs.
This vinyl prep or its equal prevents the adhesive from being absorbed
into the substrate too quickly and it will give added time to the installer
for
slipage and removal of selvage when double
cutting the material. After the wall has been primed and cured, size the
wall with a heavy- duty clay base adhesive. Allow the size to dry. Then
paste the back of the wood veneer and install.
Do not use alkyd/oil base primers
with Urban
Wallcovering Veneer.
PAINTED DRYWALL -
Acrylic/Latex - All surfaces must be clean, dry and smooth and it
is extremely important that the paint be tight and free from flaking. The
surface shall be sanded to break the paint seal and allow for the
moisture in the adhesive to be absorbed in the drywall. Size the
substrate with adhesive. Allow it to dry. Paste the back of the wood
wallcovering, then install. Depending on the
condition of the painted substrate, the installer may choose not to size
the drywall. It is suggested that the installer test an area first.
Alkyd/Oil - All surfaces
must be
clean,dry and
smooth and it is extremely important that the paint be tight and free
from flaking. Surfaces painted with alkyd/oil paint will not allow the
moisture to be absorbed into the drywall. Therefore, a wall liner must be
applied first to allow the moisture to bleed into it. Paste the back of
the wood
wallcovering, then install.
NEW PLASTER (1/2" to
3/4" thickness) -
Finish all plaster to comply
with the architect's specifications. All surfaces must be clean, dry,
smooth and free of defects. All undulations in the plaster must be
smoothen to a flat finish. allow
the plaster to cure for 60 to 90 days. Test the wall surfaces with a
moisture meter to insure the moisture content does not exceed 7%.
If the job conditions require the material to be installed
prior to the 60 to 90 days, then wash the newly plastered walls with zinc
sulfate solution to neutralize the lime (2 to 4 pounds of zinc sulfate
crystals per gallon of water). The environmental conditions must be
maintained with a permanent HVAC system for four days prior to the
installation of the material and thereafter. The temperature will be
maintained between 65 to 85 degrees Fahrenheit with a relative humidity
of 50%. Following the above procedures, an application of a quality
primer should be applied. Use Vinyl Prep 909, Mfr. Roman's Adhesives,
Inc. or E-5 Heavy Duty Acrylic primer or an equivalent. Size the
substrate with a recommended adhesive. Allow the size to dry. Then paste
the back of the wood
wallcovering and
install.
PAINTED PLASTER - All surfaces
must be clean, dry, smooth and free of defects and it is extremely
important that the paint be tight and free from flaking. All efflorescence
crystals should be removed before starting the installation. All
undulations in the plaster must be smoothed to a flat finish. Plaster
surfaces must be installed with attention to the type of paint applied to
the surface and the number of coats it has received over time. If the
painted surface can be sanded and the paint seal broken to allow the
moisture from the adhesive to bleed in the wall, then the installer may
size the wall with a recommended adhesive. Allow the size to dry. Then
paster the back of the veneer and install.
Painted plaster walls, which have numerous coats of alkyd/oil or even
latex may have to use a wall liner when the sealed
surface cannot be broken by sanding. Install the wall liner allowing
sufficient time for the moisture in the adhesive used to evaporate (use
recommended adhesive). Then paste the back of the wood
veneer and install.
METAL - All surfaces
must be clean, dry, smooth and free from defects. If the metal surface
has not been factory primed with a rust inhibitor, then the installer
shall use a quality zinc chromate primer to prime the metal surface.
Install over metal surface with a recommended contact adhesive (Follow
the manufacturer's instructions). Exterior metal doors must be insulated.
Do not install Urban
Wallcovering over
metal surfaces which are subject to extreme temperature changes. (Urban
Wallcovering is not to be used as an exterior
product.)
WOOD - All surfaces
must be clean, dry, smooth and free of defects. Wood surfaces expand and
contract under varying differences in humidity conditions. The
wood
wallcovering must be installed
in a controlled, maintained environment on wood surfaces at the job site.
Do not install wood
wallcovering over
any solid wood substrate which is not stable.
Install no less than three (3) full-width panels of each
pattern specified in an area designated for testing. The test
installation area shall be reviewed for conformance to the manufacturer's
standard installation instructions and
recommended adhesives. The
approved test area shall remain as part of the finished installation work
and as a standard of comparison for the installation throughout the
project. Do not install specified material beyond the test area, prior to
the approval of the test area. Remove the wood veneer sheets
from the box and allow them to relax and acclimate to the environment for
approximately 12 - 24 hours. If the air is dry or the sheets
remain out of the box for an extended period of
time, then cover the wood
wallcovering with
a sheet of vinyl
wallcovering to prevent the
veneer from drying out. After inspecting all the wood
venner sheets, arrange the sheets in numerical
sequence as labeled on the back of each sheet in the lower left corner.
The wood veneer sheets must be installed in sequence with the sequence
numbers at the floor or ceiling level. Depending on the
appearance wanting to be achieved will depend upon whether the numbers
are installed at the floor or the ceiling. Follow the instructions
enclosed for the recommended type of adhesive and preparation of wall
surfaces before beginning. Apply the wood veneer sheets to the wall in
sequence, filling in over doors and windows in sequence from the
consecutive sheets.
Standard lengths of Urban Wallcovering may
be either butt jointed or double cut on the wall depending upon the job
constraints. All wood
wallcovering over
10 feet in length must be double cut on the wall. Vertical joints shall
not
occur less than 2 1/2 inches from all
outside and inside corners. Overlapping of seams is not acceptable.
Smooth the wood veneer
wallcovering on
the wall with a broad knife, which will not mar the finish but ensures
that all air bubbles are eliminated and there is a good adhesive bond
between wood veneer and the substrate. Remove excess adhesive from
each seam immediately prior to installing the next sheet. Do not let the
clay base adhesive dry on the face of the wood veneer. Use a clean, moist
natural sponge to remove excess adhesive and then dry the surface with a
lint free towel. It is very important to change the water frequently in
order to maintain cleanliness. Urban
Wallcovering has
a face veneer moisture content of 6-9%. If the wood
wallcovering becomes too dry and difficult to
install, moisten the veneer face with a damp cloth. Place the sheets face
to face on the floor and cover with a sheet of vinyl
wallcovering.
Allow the wood veneer to relax for at least 30 minutes and then
start the installation.
Air bubbles must be removed and installation errors
corrected before the adhesive dries. Sufficient lighting will greatly
enable to see the bubbles and other installation problems. After
installing 3 sheets, inspect the wood
wallcovering for
proper installation. Allow the wood veneer to bond to the wall
for 24 hours before inspecting.
Finishing:
If the natural color is acceptable, no additional steps are
required. An additional finish may be required for protection if
the wood
wallcovering is in an area which
is subject to abuse. It is recommended that the finish coat be of low to
mid sheen in order to reduce the chance of seeing drywall imperfections.
If an additional stain or finish is specified, follow the
Manufacturer's instructions.
Clean Up and Protection:
All excess material is to be removed from the premises and
the area left in a clean and orderly condition. The finished wood
wallcovering should be protected from damage that may occur from other
trades.
For Best Results:
• DO NOT use oil/alkyd wall primers
• DO NOT install Urban Wallcovering over
alkyd/oil-based paints without using a wall liner.
• DO NOT cut recommended adhesives with water.
• DO NOT install wood veneer wallcovering if
the drywall moisture content is over 7% and/or the relative humidity
exceeds 50%.
• DO NOT sand Urban Wallcovering with
a heavy grit sandpaper if repair of scratches is
required; use
Watco oil and 300 - 400 grit
sandpaper.
• DO NOT use alcohol based stains or strong solvent
finishes on wood veneer.
• DO NOT use heavy-duty clear adhesives.
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