Adhesive
A substance that causes two or more materials to bond.
|
All-purpose
compound
Used for setting tape and covering joints and fasteners,
it is a combination of drywall joint and a topping compound.
Premixed or packaged as a dry powder to be mixed with
water, it has many of the smooth-spreading qualities
of topping compound but has greater adhesion. |
Backing
board
Gypsum wallboard designed to be the first layer in a
multilayer wall system. |
Base
Coat
The first coat of compound when multiple coats are applied. |
Baseboard
Finish trim where the floor and walls meet. |
Beveled
edge
The tapered factory edge of wallboard panel. |
Blister
A portion of the facing paper or joint tape that comes
unbonded from the surface of the panel. |
Bullnose
A radius (curved) finished edge. |
Butt
joint
The joint formed when two pieces of wallboard are butted
together. |
Chalk
line
A tool consisting of an enclosed spool of string with
powdered chalk inside, allowing the user to stretch
the string to a particular length then pluck or snap
the string to create a straight chalk mark on the surface. |
| Clickers |
Control
Joints
Are used to relieve stresses induced by expansion and
contraction in large ceiling and wall expanses in drywall
and veneer plaster systems. |
Corner
bead
A strip of formed sheet metal placed on outside comers
of drywall before applying drywall 'mud'. |
Dimple
Depression left by a nail being set by hammer in the
surface of sheetrock. |
Drywall
Primer
A paint material specifically formulated to fill the
pores and equalize the suction difference between gypsum
board surface paper and the compound used on finished
joints, angles, fastener heads, and accessories. |
Drywall
Also known as wallboard or gypsum board, a paper covered
panel of compressed gypsum used as the primary wall
covering in almost all homes. |
EIFS
Exterior Insulation and Finish Systems (EIFS) are a
type of exterior cladding. They are multi-component
systems which provide weather resistance, insulation,
and the final colour and shape of the structure. EIF
Systems have been used in Europe for over 40 years,
and have been available in North America for approximately
25 years. |
Field
The surface area of a gypsum wallboard panel. |
Fire
taping
Taping the joints in gypsum wallboard to eliminate a
path where fire might travel. This tape is used without
a finish coat of joint compound. |
Fire
Wall
Fire-resistant partition extending to or through the
roof of a building to retard spread of fire. |
Firewall
In construction, a firewall is a non-flammable wall
that prevents fires from spreading throughout a building.
Homes, for example, may have a firewall between the
garage and the rest of the house to prevent garage fires
from threatening other rooms. |
Furring
Small strips of wood or metal that are applied to a
wall or other surface to act as a fastening piece for
the finishing material. |
Greenboard
Greenboard is water resistant drywall. It is suitable
for humid areas, but not areas that actually get wet.
Concrete backerboard should be used where actual moisture
is expected. Concrete backerboard is typically used
as the underlayment for ceramic tile. |
Gypsum
A soft mineral used to make walls, sheetrock. |
| Hitch
hiker |
Insulation
A material designed to control the passing of heat and
/ or sound. |
Joint
photographing
The shadowing of the finished joint areas through the
wallboard finish. |
Joist
Horizontal wood framing member set from wall to wall
to support the boards of a floor or ceiling. |
Mud
Joint compound. |
Multilayer
To or more layers. |
Nail-pop
When nail heads "pop" through the surface
of the wallboard. |
Plumb
The term used to define a vertical element that is perfectly
perpendicular to a level surface above or below. |
Primer
Specially formulated paint used as the first coat to
seal a surface and provide a base for a final coat of
paint. |
PVA
Polyvinyl resin adhesive, commonly used as a drywall
sealer. |
Ring-shank
Nails with ring around the shanks. This increase the
gripping power of the nails. |
Rip
Generally used to refer to a lengthwise cut. In the
case of wood, it means to cut with the grain of the
wood. |
Ripper
Narrow strips of wallboard. |
R-value
A unit of thermal resistance used for comparing insulating
values of different materials. The higher the R-Value
of a material, the greater its insulating properties
and the slower the heat flows through it. |
Score
To scribe a line along a surface using a knife. |
Seam
A taped wallboard joint. |
Skim
coat
A
thin coat of joint compound spread over the entire surface
to fill imperfections. |
Skip-trowel
A hand application texturing technique adding sand to
the mud. |
| Smooth
wall |
Soffit
A covering over a space under the eaves of a structure
or over cabinets. |
Spotting
To cover fastener heads with joint compound. |
STC
This number represents how much noise is stopped by
something. The higher the number the better: the scale
is logarithmic, meaning each number is significantly
higher than the next, like the Richter Scale for earthquake
measurement. For more information see our drywall help
section on making walls
quiet. |
|
Stud
An upright 2 x 4 or 2 x 6 wall framing member.
|
Texture
A decorative treatment of gypsum board surfaces. |
Topping
Joint Compound
Topping is a smooth sanding material for second and
third coats over all-purpose compound. Produces excellent
feathering and superior finishing results. |
