Drywall

Vinyl-Surfaced board

Available in a variety of colors; is attached with special drywall finish nails; and edges are left exposed without joint treatment.

Edge distance

3/8" to 1/2" 1. Do not double nail around the perimeter of a sheet 2.Single nail edges 6" to 8" apart.

12"

Scews are usually spaced _____apart regardless of drywall thickness.

16"

Screws may be placed _______apart on walls without loss of strength.

Wall (screw)

Screws placed up to 16" apart.

Celing (Screw)

Screws usually placed 12" apart.

Type S screws

Self-drilling and self-tapping designed for use with metal studs

Type W

Sharp points designed for use with wood studs.

1"

Smooth shank nails should penetrate the thickness of the drywall (layer or layers) plus _______ into underlying wood.

Chalk line

Snap a _____________ on the finish side of drywall sheets to indicate stud/joist center locations for quicker installation.

Nails

Specially designed, with oversized heads for greater holding power and treated to prevent rust and stains.

6" finishing knife

Used to bed tape in the first layer of joint compound and for filling nail or screw "dimples"

Adhesives

Used to bond single-ply drywall directly to a)framing members. b)furring strips c)masonry surfaces d)insulation board or other drywall Must be used with nails or screws

Chalk Line

Used to facilitate layout.

Casing (stop) bead

Used where drywall sheets butt at wall intersection, or wall and exposed ceiling intersections, or where otherwise specified. -matched to the thickness of the drywall used -used as edge protection and trim around windows and door openings and as moldings at ceiling angles.

2" to 3"

Using a 12" finishing knife, apply the third and final coat of joint compound. the final coat should be ______wider than the previous coat and should have feathered edges.

4"

Using a 6" finishing knife, spread a layer of joint compound approximately ____wide down the center of the joint.

Gaps

When attaching drywall, hold it firmly against the framing member (stud or joist) to avoid _______between the drywall and framing member which may cause "nail pops" or other weak spots.

Regular Gypsum Panel

Widely Used for single and multi-layer application. Applied to interior walls and ceilings.

Annular Ring

___________ nails are Most frequently used.

1/2" and 5/8"

_____________________are commonly used thicknesses of gypsum panels for single layer wall and ceiling application in residential and commercial construction.

specifications

________________may indicate which method should be used.

1/4"

______________thickness is used as a base layer in multi-layer applications; cover existing ceilings; and walls in remodeling work.

Careful Layout

__________will keep joints to a minimim.

3/8"

_________thickness is applied as a face layer in repair and remodeling work over existing surfaces; also used in multi-layer applications in new construction (not adequate for single-layer application.)

Single-Nailed

________nails should be driven in the center of the board, then outward toward the edges.

Nails; Scews; Adhesives

_______are used in wooden structures. ______in Wood or metal studs. ____________are used in conjunction with nails and/or screws.

3/8", 1/2" and 5/8"; 10'

a)Casing bead made of galvanized steel to fit _______________ wallboard. available in _____lengths. b)Three styles.

Small holes

apply fiber mesh tape directly over hole.

6"

avoid side joints within _____ of the outside edge of doors and windows. Bevel edges interfere with window trim, and the bevel maybe visible to avoid this, lay out vertical joints so they meet over a cripple stud toward the middle of door and window opening.

Drywall hammer

crown convex headed to imprint nail and form a dimple without tearing the paper.

corner trowel

flexes from 103 to 90 degrees; used to apply joint compound in interior corners.

1/2" or 5/8"

for _____________ single layer drywall, use 1" X 1-1/4" corner bead.

Water Resistant (WR) or Moisture resistant (MR) gypsum board

has a special moisture-resistant core and paper cover that is chemically treated to repel moisture. 1) Used in areas that are subject to high moisture (bathrooms, Laundries, and commercial kitchens) 2) "Green Board"

Type X Drywall

has special additives that make it fire-resistant.

vertically or horizontally

sheets may be installed ___________________

16" and wider finishing knives

used for applying the top coat of joint compound.

Drywall Carrier (Lifter)

used for carrying and lifting drywall sheets.

12" finishing knife

used for feathering the second layer of joint compound and is usually adequate for the third (or topping) layer.

Sandpaper/Sponge

used for feathering/smoothing dried joint compound.

Corner bead

used on all exposed (outside) corners to ensure a clean finish and to protect the outside corners of drywall from edge damage.

Smooth-Shank

used to attach two layers of drywall.

Clinch-On Cornerbead tool

used to fasten corner bead, this process elminates the use of nailing or screwing corner bead in place.

Mud pan

used to hold and carry joint compound.

T-Square

used to lay out and guide a 90 degrees cut on drywall.

Foot lift

used to raise sheets short distances vertically.

Utility knife

used to score/cut drywall.

Surform

used to smooth drywall edges after cutting.

2" to 4"

using a 12" drywall knife apply a second coat of joint compound. this second coat should be approximately _____wider than the initial coat.

1/2"

when cutting drywall to length, never cut too closely. Gap of _____ are acceptable at the top or bottom because the gaps will be coverd by molding, baseboard or finish flooring. Drywall sheets cut to exact lengths may be difficult to maneuver into place

Smaller piece

when cutting the drywall, grasp the ____________ and snap it sharply. the gypsum core will break along the scored line.

Apply Over

when doing mud for the inside corner, do not _________casing (stop) beads

Backing Board

Designed to be used as a base layer in multi-layer systems. Has a gray paper lining on both sides and is not suited for finishing or decorating.

Double up

Do Not ________ screws.

Parallel or perpendicular

Drywall can be applied __________ to joists or studs. Both arrangement work, sheets running perpendicular afford better attachment.

8' or 12'

Drywall sheets are manufactured in 8', 9', 10', 12', 14', 16' lengths. Lengths of _____________are the most commonly used.

4'

Drywall sheets are most commonly used in ________widths.

Careful layout

Drywall sheets have tapered edges for taping and filling; ends are not tapered. end joints must be staggered. _____________will minimize end to end installations which are more difficult to tape and fill properly.

Taping, Filling, and sanding.

Each joint will require ________. try to keep joints to a minimum.

3/8" or 1/2"

For ____________ single layer drywall, use 1"X1" corner bead.

2"; 2"; 1-1/2"

For applying the inside corners: apply joint compound with a 4" finishing knife about _________on either side of the corner. Using a corner trowel, feather the compound out _____from the edge of the tape. feather the edges out _________beyond the first coat. if necessary, apply a third coat.

3" to 4"

For applying to outside corners-- Use a 4" finishing knife to apply compound _____wide from the nose of the corner bead, covering the metal edges.

2" to 3"

For applying to outside corners-- apply a second coat of mud, feathering the edges _____ beyond the first coat. apply a third coat, feathering the edges _______beyond the second coat.

1-1/4" X1-1/4"

For two layer drywall, use ________corner bead.

Rounded or Beveled edges

Pre-decorated drywall has _________________.

Does not

A longer nail _______necessarily fasten more securely than the proper size nail since a longer nail has more length exposed to expansion and contraction of the wood.

Adhesives

1.Allows you to bridge small gaps and minor irregularities. 2.Spaced nails 12" apart on sheet sides (allows use of approximately half the numbers of nails on sheet side.) use same nail spacing on sheet ends. 3.Run a 3/8" bead down the middle of a stud, use two parallel beads where sheets meet over the framing member. 4.Always follow manufactures recommendations for use, and always wear protective goggles.

3/4"

Annular ring nail should penetrate the thickness of the drywall layer plus ______into underlying wood.

Advantanges of Dry Wall

-Save time in Construction- has a short dry time -Many Types for multiple uses

3 Requirements for Dry wall

-moderately low mositure content of framing members. -stud alignment -ceiling joist alignment

Screws

1) preferred method of fastening among professional builders 2)made of high-quality steel; superior to conventional wood screws. 3) installed with a power screw gun or electric drill.

Joint tape

1. Available in Non-perforated paer, perforated paper, and self-sticking fiber mesh types. 2. perforated and mesh type are easier to bed and cover with joint compound. 3.self-sticking configuration elminates the need for the first layer of joint compound.

Nailing Technique

1. Drive each nail slightly below the surface, forming a "dimple". Be sure not to break the paper when driving nails. 2. The dimple creates a pocket, which is filled with joint compound.

Double-Nailed

Centers of nail pairs are approximately 12" apart with each pair 2" to 2-1/2" apart.

Maximum Practical length.

Choose drywall sheets of the ______________.

3/4" or 1"

Core board and liner boards used for shafts, firewalls, and stairways are commonly ________________ thick.

5"

Corner Bead: Nail or screw every _________through drywall into framing members.

10'

Corner bead made of galvanized steel and is available _______ lengths with different widths for different thicknesses of drywall.

Pre-Decorated nails

Have samller head, are left exposed, and are colored to match the drywall.

Mixed

In powder form, joint compound must be ______ with water to consistency of putty.

Assistance (helpers)

Increased sheet lenth increases sheet weight and handling difficulties. Larger sheets will require _______ in handling and installation.

Ceiling

Install drywall on _______first, then butt wall sheets against the ceiling sheets.

Celing spacing

Maximum of 7" between nails

Wall spacing

Maximum of 8"between nails.

Stud Alignment

Misalignment will cause a wavy, uneven appearance.

Low Moisture

Moderately ___________________ content of Framing members. Other wise drying out of framing members will result in "Nail Pops"

Ceiling joist alignment

Strong back provide for alignment of ceiling joists and can be used at the center of a span when ceiling joists are uneven.

Factory Edges

Successive sheets are aligned with the first, ensuring that factory edges are butted to ________________. cut edges should be placed at the corners or top/bottom of the wall.

Two

Take at least _____ measurements to accurately locate the opening on the sheet, then mark the height and width of the opening.

Joint Concealment

Tapered edge of gypsum panels for effective _____________.

Shorter shelf-Life

The ready mixed compound is easier to work with but has a _________________.

Joints/seams

Try to Minimize___________.

Multiflex tape bead

Two continuous metal strips on the undersurface of 2-1/8" wide reinforcing tape. Allows protection of corners formed at any angle. Available in 100' rolls.

3/8"; 1"; 1/2"

Type S screws - at least _____ should pass into a metal stud. -Type Screws _____long are commonly used for single-ply ______and ______drywall.

5/8"; 1/2"

Type W screws Should penetrate wood studs/joists at least __________ If pentrating two layers of drywall, screws holding the second layer need to penetrate wood only_________

Foil-backed board

Used as a Vapor barrier on exterior walls; available in various thicknesses.

Plasterboard (or gypsum lath)

Used as a plaster base, replacing wood or metal lath in new construction and renovations. It is available in 16" and 24" widths and is usually 48" long. Plaster board is not compatible with Portland cement plaster.

Sound Deadening Board

Used as a sub-layer with other types of drywall (Usually Type X); often only 1/4" thick.

Keyhold saw

Used for cutting out irregular shapes and openings, such as outlet box openings.

Finishing/Drywall knives

Used to apply and finish joint compound.