Common
Terms Glossary
Activator: A substance that contains wallpaper adhesives
to improve bond plus additives to increase slip and work time for
easier installations. Adhesive:
A substance that causes one thing to adhere to another; most wallpaper
adhesives are cellulose-, clay- or starch-based.
Adhesive
Removers: Solutions that are applied to walls to aid in the removal
of old wallpaper glue and adhesive residue left on the wall surface
after wallpaper removal.
Allowance:
The extra amount of wallpaper allowed at the top, bottom and/or
sides of a strip that is trimmed off after the strip is placed on
the wall.
Booking:
A term used to describe how wallpaper is folded after it is either
pasted or pulled through a water tray. Generally the top of the
wallpaper is LOOSELY folded (not creased) shorter on the top and
longer on the bottom end and allowed to book (relax) per manufacturers
recommendation (generally 5 to 10 minutes.)
Bolt:
A double-roll of wallpaper (50-56 square feet) is called a bolt.
A bolt of border is 15' long.
Border:
A band of wallpaper used for decorative purposes, usually at ceiling
height or at a chair-rail height (32" from top of baseboard)
or around windows and doors.
Butt
Joint/Butted Seams: A joint at which edges of wallpaper meet but
do not overlap.
Clay
Adhesive: Clay pastes are best suited for hanging heavy commercial
vinyl and "dry" hanging. A clay paste is one of the strongest
wallcovering adhesives made. Clay is generally recommended when
hanging over paneling or cinderblock walls and many liner papers
spec a clay based adhesive to install the liner for a strong bond.
Color
Run: The amount of rollage of a particular design produced of a
single color combination in a single production run of the design
. Subsequent runs of the same design and color may be slightly different.
(This is why it is important for purchasers to retain the run number
in case additional rollage is needed). Also referred to a Dye Lot.
Colorway:
The combination of colors in which a design is printed. Any given
design is usually made in from two to six colorings.
Design:
The imprint on the wallpaper such as florals, solids, stripes, geometrics,
etc.
Double
Cut Seam: Type of seam used in situations where it is necessary
to overlap two strips of wallcovering and yet avoid a raised ridge.
One example would be when a border is being installed and a second
border is needs to be joined to complete the run on the wall. The
pattern would be matched laying one border over the other and a
cut would be made through both layers. Once the cut is made, the
overlap (top cut-off section) and underlap (bottom cut-off section)
is removed, the edges smoothed and joined together, leaving a tightly
butted seam.
Double
Roll: A bolt of wallpaper, generally containing 50 to 56 square
feet or about 32 linear feet.
Drop
Match: A drop match simply means your pattern does not match straight
across the wallpaper but instead drops a certain distance on the
opposite side of the paper. Once you have decided on pattern placement
on your wall, every other piece will generally be the same.
Dry
Scraping: A method of wallpaper removal where one scrapes through
the wallpaper to expose bare or painted walls: can go through several
layers of old wallpaper; for use on plaster walls only.
Dye
Lot Number: A set of numbers and /or letters given to a particular
batch of wallpaper rolls printed at the same time; each time a new
ink or different batch is printed, the dye lot number (sometimes
called the color run number) will change; it is important to ensure
that all rolls have the same dye lot number before beginning a job,
sometimes referred to as a run number.
Embossed
Wallpaper: The application of pressure and heat to create a permanent
texture; because of an additional finishing process needed for the
emboss, it is slightly more expensive; two types are Random and
In-Register.
Engineering
the Room: Planning where your seams will fall to eliminate small
strips next to doors, windows, cabinet, etc. and determining where
your pattern should be placed for beautiful finished results is
a technique called Engineering the Room. With a pencil mark off
your seam placement to eliminate any problem areas and adjust your
starting point. Take the pattern (size, design type, repeat) of
the wallpaper into consideration when deciding pattern placement
at your ceiling and floor.
Expanded
Vinyl Wallpaper: A heavy textured vinyl wallpaper, great for use
over damaged walls and rough surfaces, sometimes referred to as
blown vinyl, usually paintable
Fabric-Backed
Solid Vinyl Wallpaper: Highly durable wallpaper with a woven or
non-woven fabric ground (mesh-like textile backing) and a solid
vinyl coating; used almost exclusively for commercial and institutional
applications.
Gravure
Printing: A high-speed, cost-effective and the most common wallpaper
printing process; utilized copper cylinders, with one color per
cylinder, etched with the pattern design; can achieve fine detail
and a wide range of tones in as many as 12 colors.
Ground:
Raw stock onto which a coat of pigment has been applied before the
top colors are put on in wallcovering manufacturing.
In-Register:
A type of embossed wallpaper where the emboss is synchronized with
the pattern in the wallpaper; has a silk-like, shiny appearance,
fairly common; also called Light Reflective.
Level:
A tool which has liquid in a small glass cylinder that moves to
indicate when it is positioned perfectly vertical. A 2 to 4 foot
carpenter's level is useful in drawing a "level line"
to start the first strip of wallpaper on a wall. Levels are used
for determining the straightness of seams and can be used to pencil
in horizontal lines to lay borders along.
Lining
Paper: Blank wallpaper stock that can be applied to provide a smooth
surface and minimize the possibility of mildew and staining. It
is hung horizontally (sometimes called railroaded) to ensure that
its seams and the wallpaper's seam do not fall on the same vertical
line; should be left to dry on the wall for at least 36 hours before
wallpaper is hung; super-heavyweight strippable lining paper can
be used directly over properly primed and prepared paneling, tile
and cement block. Sometimes referred to as blankstock, some lining
papers require priming over its surface before painting or wallpapering
over them, some liners are now pre-pasted and do not require priming
the surface.
Matching:
Hanging strips of wallcovering so that the design will be in the
correct relation to the preceding strips. The types of matches are
"random", "straight", "drop", and
"reverse".
Pattern
Repeat: The distance up and down before the printed pattern exactly
repeats/duplicates itself.
Peelable:
A wallcovering that can be dry-peeled from the wall leaving only
substrate (sometimes called paper backing) on the wall, which can
then be used as a liner under new wallcoverings. Peelable wallcoverings
are usually paper-backed vinyl in which a layer of solid vinyl is
adhered to an inexpensive backing.
Pigmented
Primer/Sealer: A colored primer/sealer which reduces the risk of
show-through with lightweight wallpaper or wallpaper with little
ink. Generally show through is caused by sheetrock seams or patterns
on old wallpaper. Typically primer/sealers are pigmented white and
can be tinted to a pastel color if desired.
Plumb
Line: A vertical guideline (sometimes called a level line) necessary
when hanging wallpaper; a length of string is usually coated with
chalk to which a weight is attached; when the string is snapped,
the chalk leaves a straight line on the wall. A level can also be
used to achieve the same results by tracing with a pencil on the
correctly positioned level.
Pre-pasted
Wallpaper: Wallpaper that has been pre-coated with an adhesive.
The dry adhesive is activated by pulling the wallpaper through a
tray of water.
Primer/Sealer:
A base coating designed for use under wallpaper to seal porous surfaces
prior to hanging; helps the wallpaper adhere by blocking the wall's
capacity to absorb moisture from the paste; makes hanging and removing
easier. It is always recommended to prime before hanging wallpaper
and to use an acrylic primer/sealer formulated especially for priming
for wallpapers.
Railroaded
- A method of installing wallcovering horizontally rather than vertically.
Generally used on lining papers.
Random
Embossed Wallpaper: Texture is created at random all over the embossed
wallpaper.
Random
Match: A pattern design where the pattern matches no matter how
the adjoining strips are positioned; textures and vertical stripes
are common examples.
Razor
Knife: Useful for trimming wallpaper at ceilings, baseboards, around
cabinets, etc. and for cutting through wallpaper layers such as
when double-cutting. Change blades often for neat, clean trims.
Relax(ing):
- A term used to describe the expanding process of wallpaper after
water or adhesive has been applied. Some wallpapers expand 1/2"
to 1" during the 5 to 10 minutes following exposure to moisture.
Reverse
Match: A method of installing wallcoverings where the top is reversed
on each piece (top up, then top down, then top up, then top down).
Generally this method is used on commercial 54" goods.
Scoring:
Process of perforating or cutting thin lines into old wallpaper
so that wallpaper removal solutions can better penetrate the paper.
Scrubbable:
Any wallcovering that can be safely washed with a sponge and detergent
while still on the wall. Perfect for high traffic areas such as
kitchens and baths. Typically scrubbables are solid vinyls and wallpapers
will be labeled as scrubbable.
Sizing:
A solution applied to the wall to add slip for ease of smoothing
and working the paper. Newer solutions such as activators and wall
primers have outdated the use of sizing.
Solid
Vinyl Wallpaper: Wallpaper in which a vinyl film coating is added
to the ground before the pattern is printed; durable, easy to clean,
scrubbable and moisture- and stain-resistant; two types are Paper-Backed
and Fabric-Backed.
Scraper:
A tool used to scrape away old wallpaper, glue and adhesives.
Spackling
Compound: A white pre-mixed compound or powder to which water is
added for use in mending cracks in plaster, holes in sheetrock walls,
skimming old wallpaper seams, should be sanded smooth and flat after
drying.
Spray
Removal: A method of wallpaper removal where a garden-type sprayer
applies wallpaper removal solutions to walls and then paper is removed
with a wall scraper.
Steam
Removal: A method of wallpaper removal where a commercially-available
steamer is used.
Straight
Edge: A tool that is helpful in conjunction with a razor knife for
mitering straight joints (such as double-cutting through two layers
of wallpaper) and for use as a guide in trimming selvages on un-trimmed
wallpaper.
Straight
Match: A pattern design where the pattern match flows directly across
the strips: when hung, every strip will be the same at the ceiling
line and the pattern on all strips will be the same distance from
the ceiling.
Strippable:
Wallpaper that can be dry stripped from the wall leaving very little
paste or residue and no damage to the wall surface.
Stripper:
A gel or liquid that is applied to walls to facilitate the removal
of old wallpaper.
Substrate:
The backing of a wallcovering. it becomes laminated to the design
layer.
Surface
Printing: similar to Gravure printing, but uses aluminum magnesium
alloy cylinders; amount of ink laid is much thicker and has a raised
printing surface; less durable than gravure; used mostly on higher-end
brands and more expensive.
Usable
Yield: The amount of actual wallpaper per double roll that can be
hung after taking into consideration the waste in the repeat of
the pattern.
Vinyl
Coated Paper: Paper wallpaper that has a thin layer of acrylic or
vinyl applied over the paper; pattern is printed on that. Generally
washable but not scrubbable. Best used in foyers, formal areas,
bedrooms, powder rooms.
Vinyl
to Vinyl Adhesive: A special adhesive used to make sure two wallpaper
stick together; recommended when hanging borders or joining wallpaper
a corners.
Wall
Preparation: The preliminary work on walls to prepare them for wallcovering
application, i.e. patching, sanding, priming.
Washable:
A wallcovering that can be cleaned with a sponge, soft towel, mild
soap and water.
Water
Tray: A specially shaped trough, usually made of plastic, design
to hold water for wetting pre-pasted wallpaper before hanging.
Work
Table: A work surface that facilitates the cutting and gluing of
wallpaper. Makeshift tables can be fashioned with saw-horses and
plywood or professional grade tables are available through wallpaper
and paint dealers.
|