CertainTeed CTG_CT037_EF - Manual (Page 2)

CertainTeed drywall is
very easy to work with
and cutting is quite
simple. To make a cut,
score the paper on the
face side with a utility
knife along the edge of
your T-square. Apply
firm, but even, pressure
to snap the board along the score. Then fold
the board along the score and cut the paper
along the crease with the utility knife. Lastly,
smooth the rough edges with a sanding block
or drywall rasp.
Remember, always wear safety glasses when
cutting or sanding boards.
attaching certainteed drywaLL
You can attach your
drywall to studs or
joists using nails,
screws. We recom-
mend using drywall
screws for optimum
installation and pro-
fessional finish. You
might wish to consult
with your dealer when considering the different
application methods.
Always install ceiling first, then install walls,
allowing a space of at least 1/2" off of the floor.
Keep fasteners 6-inches away from the interior
ceiling and ensure that nails or screws are not
less than 3/8" from the ends and edges of the
drywall.
ceiLing
Installing ceiling boards can be tricky and
requires two people. In addition, you will find
it much easier if you use T-braces or a drywall
lift to hold the drywall in place until they are
fastened.
You can build T-braces
yourself! You’ll need a
two by four that is an
inch longer than the
distance from the floor
to the ceiling framing
members, as well as, 2-two foot lengths of one
by fours.
One piece of the 1 x 4 should be used for the
top of the “T”, while the second piece should
be used as a brace and attached diagonally
from the top piece to the stem. You’ll need to
make sure the T stays square.
Have your helper use one T-brace, while you
manage the other to lift the drywall into place.
Your drywall screws should be installed 12" to
the joists. If using nails, they should be placed
6" apart. Install nails or screws slightly indented
into the surface, without breaking the paper
face or damaging the gypsum core. If you
do break the paper, remove the fastener and
replace with one 2" away.
waLLs
When installing drywall, install the upper board
first, ensuring that you push the board firmly
against the ceiling and that tapered edges are in
contact. Then fasten with drywall screws spaced
16" apart (or preferably double nails 6" apart)
working from the center out to the edges.
To put the lower panel into place, you may wish
to use a wedge or drywall lifter. Put the angled
edge under the board and use it as a lever to
jack it up against the top panel.
cutouts
You will need to cut openings in your drywall to
accommodate electrical outlets, light fixtures,
windows and doors.
For light fixtures and electrical boxes, measure
the distance from the edge of the adjacent
board to the near and far sides of the installed
fixture box. Then mea-
sure from the top edge
of the panel to the top
and bottom of the box.
Trace the outline of the
box in the position you
just measured on the
board. Cut the opening
with a drywall saw.
For larger openings, install the panels directly
across the openings. Then use a drywall saw to
cut the panels, using the framing as your guide.
As you install the boards, make sure that you
do not place joints at the edges of doors or
windows. If you do, as the door or window
is opened and closed over time, the joint will
crack.
inside corner
To join boards at an inside corner, simply butt
the second board against the first and fasten its
end to a framing member.
outside corner
On outside corners, be sure to cover the end of
the first installed board with that of the second.
Fasten both ends of the boards to the common
stud.
To prepare the corner
for finishing, install a
corner bead. Measure
the length needed, then
cut the bead with tin
snips, cutting through
each flange towards
the nose, then bending
the bead to break. After
selecting the corner bead of your choice, follow
the manufacturer’s instructions for installation.
certainteed drywaLL
A durable, lightweight, cost-effective building
material for interior walls and ceilings.
Consisting of a premium quality, non-com-
bustible gypsum core, CertainTeed drywall
is encased in a smooth face (front) and back
covering of 100% recycled paper. The tapered
edges are precision manufactured and
paper bound for easy joint finishing, making
CertainTeed drywall the ideal choice for finish-
ing interior walls and ceilings. Once primed, it can
be painted, wallpapered or textured for a look
that works for you.
tooLs you wiLL need
To properly install CertainTeed drywall,
you’ll need the following tools:
o
Tape measure
o 4-foot T-square or straight edge
o Utility knife with extra blades
o Step ladder
o Marking pencil
o Wallboard Saw
o Tin snips
o “Mud” Hawk or Pan
o 2-1/2", 4", 7" and 12" finishing knife
o Drywall rasp
o Dust mask
o Safety glasses or goggles
o 150-180 grit sandpaper
o Sanding pad and pole sander
o Sponge
o Drywall hammer or regular carpenter’s
hammer (if installing with drywall nails)
o Electric screw gun or standard drill with
dimpler attachment (if installing with drywall
screws)
planning the Job
It’s best to plan your drywall installation with
the least amount of joints (the seam where
boards meet). Fewer joints will mean less
finishing work.
We recommend installing CertainTeed drywall
perpendicular to studs or joists. drywall comes
in 4-foot wide and various lengths and thick-
nesses. However, most common are 8", 10",
12". You may find it easiest to work with 8-foot
boards.
If you are intending to finish your ceilings with a
water based texture, you should use CertainTeed
1/2" Interior Ceiling Board on maximum 24" on
centre joists, in order to avoid sagging.
To determine how many boards you will need,
simply calculate the total surface area of your
walls and/or ceiling by multiplying the length by
the width. You might wish to draw a sketch of
the room/area you are working on to make
things easier. When calculating, do not subtract
windows or door areas. Divide your total
square footage by the square footage of your
boards (32-feet for an 8-foot board) and round
up to find the number of boards you need.
Based on the square footage of your project
area, you’ll need the following materials per
100-square-feet:
o 100 1-1/4" drywall screws (or 1/2 lb of nails)
o 30-feet of CertainTeed joint tape
o 4.5 L of CertainTeed joint compound
Drywall Installation Guide
installation instructions
cutting the Board