Panels application products – USG Manufactured Housing Handbook User Manual

Page 3

Perpendicular or Parallel Application

Panels may be applied perpendicular
(long dimension across studs or
joists) or parallel (long dimension
parallel to studs or joists).
Perpendicular application using 12

Ј-

Ј panel lengths is ideal for walls

because linear footage of joints is
minimized. If possible, span the
entire wall or ceiling from corner to
corner. To minimize joints, use the
longest-length panels available and
offset all end joints in adjacent rows.

HEETROCK

MH Brand Gypsum Base

Board

is a superior grade, 5/16

Љ panel

specifically designed to accept lami-
nated vinyl film before installation.
The panel is shear-wall rated and for
use on both shear and nonshear
walls, and also carries a Class A
Surface Burning Rating for use as
wall liner in HUD Code home-furnace
and water-heater rooms.

HEETROCK

MH Brand Gypsum Panels

-B

ASE

™

)

are designed to meet the needs of
the manufactured housing industry.
They have an extra-tough core to
provide superior structural perfor-
mance during construction and in
transit. Classified by Underwriters
Laboratories Inc. as to shear resis-
tance and surface burning character-
istics. The 4

Ј-wide panels are avail-

able in 3/8

Љ, 1/2Љ, and 5/8Љ

thicknesses.

HEETROCK

MH Brand Gypsum Ceiling

Board (U

LTRA

-B

ASE

™

)

is a lightweight, sag-resistant ceiling
product specifically designed to meet
the manufactured housing industry’s
need for weight reduction, structural
integrity, and speed of installation. A
revolutionary new technology per-
mits this 1/2

Љ board to offer signifi-

cantly improved sag resistance when
compared with standard 5/8

Љ gyp-

sum board, while reducing the
weight in the average home by 500-
700 pounds. U

LTRA

-B

ASE

Ceiling

Board is recommended for attach-
ment with long edges parallel to
framing (spaced up to 24

Љ o.c.) to

speed manufacturing and eliminate
butt joints, facilitating finishing.
U

LTRA

-B

ASE

Ceiling Board resists sag-

ging even with parallel application,
insulation loading, and wet texturing
applied in a hot and humid environ-
ment. Board is 4

Ј wide and cut to

your specified lengths. Caution: No
gypsum panel product will resist
sagging if exposed to excessive
moisture for prolonged periods. Also,
excessively long drying times will
result in problems with the ceiling
finish, such as joint banding and
staining. This requires careful atten-
tion during the production process.
Moisture from the interior finish
should be removed from units as
quickly as possible through the use
of ventilation equipment.
Supplemental heat or dehumidifica-
tion may be required. Do not enclose
or seal units before all finishes are
completely dry.

WALLS

CEILINGS

Panels

Application Products

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HEETROCK

௡ Brand Regular

Gypsum Panels

have long edges tapered on the face
side to form a shallow recess to
receive joint compound and tape.
Made in four thicknesses: 1/4

Љ, 3/8Љ,

1/2

Љ, and 5/8Љ. (The 1/4Љ thick panel

should not be applied as a single
layer but only to cover existing wall
and ceiling surfaces.)

HEETROCK

Brand 1/4

Љ Flexible Gypsum

Panels

are designed for the easy construc-
tion of curved surfaces. Curved par-
titions provide an attractive way to
soften the hard lines of flat wall
dimensions, and add sophistication
to any design. S

HEETROCK

Brand 1/4

Flexible Gypsum Panels are light-
weight and more flexible than stan-
dard 1/4

Љ panels, while retaining the

same strength and fire resistance.

HEETROCK

௡ Brand Gypsum Panels,

Water-Resistant,

provide a water-resistant base for
the adhesive application of ceramic
and plastic tile and plastic-faced wall
panels. Not recommended for ceil-
ings or for single-layer resilient
attachment where tile is to be
applied.

HEETROCK

௡ Brand Gypsum Panels,

IRECODE

௡ Core,

combine all the advantages of regu-
lar panels with additional resistance
to fire exposure. Consult local build-
ing codes for fire resistance require-
ments.

HEETROCK

௡ Brand Foil-Back Gypsum

Panels

provide an effective vapor retarder
for walls and ceilings when required.
Not to be used in high moisture
areas.

Type W Bugle Head Screws

attach single-layer gypsum panels to
wood framing. Screws provide
greater holding power than wall-
board nails, minimize popping, and
help prevent damage to the panel.

HEETROCK

௣ Brand Paper Faced Metal

Drywall Bead and Trim

requires no nailing. Excellent for use
with setting-type compounds for
quicker finishing and decoration, this
product provides superior resistance
to edge-cracking and chipping.
Available in a variety of dimensions
and profiles, including inside and
outside corners, both 90° and bull-
nose styles. Specially designed trims
for coves, vaulted ceilings, and other
applications are also available, as
are nail-on versions of this bead and
trim. See J996 for a complete listing.

-A-B

EAD

௡ Corner Bead

is a galvanized steel reinforcement
for protecting external corners.

No. 200-B Metal Trim

is an L-shaped casing that provides
protection and a neat finished
appearance around window and
door openings. Available for 1/2

Љ and

5/8

Љ gypsum panels.

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