USG SHEETROCK Gypsum Panels ULTRACODE Core - Manual

Materials Gypsum Face Panels 3/4 Љ thick S
HEETROCK Brand Gypsum Panels, U LTRACODE Core, 48 Љ wide, 8Ј, 9Ј, 10Ј, and 12Ј
lengths (nonstandard lengths available with minimum quantities).
Liner Panels 1 Љ thick S
HEETROCK Brand Gypsum Liner Panels, beveled edge nominal 24 Љ wide, length as required.
Insulation T HERMAFIBER Sound Attenuation Fire Blankets (SAFBs), 2
Љ, 3Љ thick x 24Љ x 48Љ.
Accessory Products Caulking, joint treatment, etc.—Refer to USG Literature SA919 or SA927.
Partition Stud system Attach steel runners at floor and ceiling to structural elements with suitable fasteners located 2 Љ from each end
Installation erection and spaced 24 Љ o.c. Studs should be cut 1/2Љ short of full height to allow for perimeter relief. Position studs
vertically, with open sides facing in same direction, engaging floor and ceiling runners, and spaced maximum
24
Љ o.c. Place studs in direct contact with all door jambs, abutting partitions, partition corners, and existing
structural elements. Anchor all studs for shelf-walls and those adjacent to door and window openings, partition
intersections, and corners to ceiling and floor runners with screws or metal lock fastener tool. Refer to USG
Literature SA923 for complete gypsum panel steel framing recommendations.
Cavity shaft Install studs and liner panel in accordance with USG Literature SA926, Cavity Shaft Wall Systems.
wall erection
Sound attenuation Install SAFBs after one layer of gypsum panels is applied and before panels are applied to other side of studs.
fireblanket Inset 24 Љ wide blanket in stud cavity. Butt ends of blankets closely together and fill all voids.
Gypsum Panels 1. 3/4 Љ thick S
HEETROCK Brand Gypsum Panels, U LTRACODE Core, shall be scored and cut from the back side of the
assembly. Panels applied with vertical end joints or vertical wrapped edges parallel to and fully supported by steel
framing. Stagger board joints 12
Љ o.c. on opposite sides of the partition. In multiple layer systems, stagger face
panel joints by 12
Љ from base layer panel joints.
2. Extend panels the full height of the partition from the floor to top runner track. To minimize end joints, use panel
of maximum practical length. Fit ends and edges closely, but do not force together.
3. Attach panels to steel studs with:
Single layer applications 1-1/2 Љ Type S or S-12 screws spaced 8Љ o.c. perimeter and 12Љ o.c. field.
Double-layer applications Base layer: 1-1/2 Љ Type S or S-12 screws spaced 24Љ o.c. Face layer: 2-1/4Љ Type S
or S-12 screws spaced 12 Љ o.c.
Space fasteners not less than 3/8
Љ from edges and ends of panels. Drive fasteners in field of panels first,
working toward ends and edges. Hold panels in firm contact with framing while driving fasteners. Drive fastener
heads slightly below surface of gypsum panels in a uniform dimple without breaking face paper. Offset face
layer screws from base layer screws by 1
Љ. Secure face layer to base layer along horizontal joints of face layer
with 1-1/2 Љ Type G screws midway between steel framing and 1Љ from horizontal joint.
4. Install trim at all internal and external angles formed by the intersection of gypsum panels to other surfaces.
Apply corner bead to all vertical or horizontal external corners in accordance with the manufacturer’s directions.
Treat joints and fastener heads per manufacturer’s instructions.
S
HEETROCK
®
Brand
Gypsum Panels
Application Tips
U
LTRACODE
® Core
SAFETY FIRST!
Follow good safety practices.
Read material safety data
sheets and related literature on
products before specification
and/or installation. Trademarks
The following trademarks used
herein are owned by United
States Gypsum Company:
S
HEETROCK , U LTRACODE .
Note
Products described here may not
be available in all geographic
markets. Consult your U.S.
Gypsum Company sales office or
representative for information.
Notice
We shall not be liable for inci-
dental or consequential dam-
ages, directly or indirectly sus-
tained, nor for any loss caused
by application of these goods
not in accordance with current
printed instructions or for other
than their intended use. Our lia-
bility is expressly limited to
replacement of defective goods.
Any claim shall be deemed
waived unless made in writing
to us within thirty (30) days from
the date it was or reasonably
should have been discovered.
Manufactured by
United States Gypsum Company
125 South Franklin Street
Chicago, IL 60606 800 USG.4YOU (874-4968)
www.usg.com WB2344/2-04
©2004, United States Gypsum Company
Printed in U.S.A.