Operating Guide

ManualsBrandsDUROCK Brand ManualsBacker Board172967

SUBMITTAL SHEET

USG

Tile &

Flooring

Solutions

DESCRIPTION

PRODUCT DATA

SIZES AND PACKAGING

STANDARDS

AVAILABILITY

COMPOSITION AND MATERIALS

USG DUROCK

BRAND

CEMENT BOARD

Backerboard for tile and exterior ﬁnish systems

• Lightweight cement tile backerboard

• Water-durable, mold-resistant substrate for high-moisture areas

• Suitable for use in interior or exterior applications

• Will not rot, warp, delaminate or disintegrate

• Easy to cut and fasten

• Noncombustible

USG Durock® Brand Cement Board oers architects, builders and tile contractors a strong,

water-durable tile base for tub and shower areas. Also an ideal underlayment for tile on ﬂoors

and countertops in new construction and remodeling. Board is readily applied over wood or

steel framing spaced 16" o.c. with corrosion-resistant wood, steel screws or hot-dipped galvanized

rooﬁng nails. After joints are treated, wall or ﬂoor tile is applied using latex-fortiﬁed mortar or

Type I organic adhesive.

USG Durock® cement board is preferred by many applicators as a base for directly applied ﬁnishes,

tile, stone and thin brick used in building exteriors.

Size (thickness x width x length)

Units (pcs)

1/4" x 3' x 5' 60

1/2" x 32" x 5' 50

1/2" x 3' x 5' 50

1/2" x 32" x 8' 30

1/2" x 4' x 8' 40

5/8" x 3' x 5' 40

5/8" x 4' x 8' 32

1. Other lengths available. Contact your USG Sales Representative.

2. Shipped in packaging units as shown.

USG Durock® cement board exceeds ANSI standards for cementitious backer units (CBU). See

ANSI A118.9 for test methods and speciﬁcations for CBU and ANSI A108.11 for interior installation

of CBU. Exceeds industry standards as an exterior substrate for exterior ﬁnishes. Exceeds ASTM

C1325 standards for nonasbestos ﬁber-mat reinforced cementitious backer units.

USG Durock® cement board is distributed throughout the United States. Contact a USG sales oce

or sales person for additional information.

USG Durock® cement board is formed in a continuous process of aggregated portland cement

slurry with polymer-coated, glass-ﬁber mesh completely encompassing edges, back and front

surfaces. The edges are formed smooth. The ends are square cut.

Summary of content (4 pages)

PAGE 1
USG Tile & Flooring Solutions SUBMITTAL SHEET USG DUROCK® BRAND CEMENT BOARD Backerboard for tile and exterior finish systems • • • • • • DESCRIPTION Lightweight cement tile backerboard Water-durable, mold-resistant substrate for high-moisture areas Suitable for use in interior or exterior applications Will not rot, warp, delaminate or disintegrate Easy to cut and fasten Noncombustible USG Durock® Brand Cement Board offers architects, builders and tile contractors a strong, water-durable tile base for
PAGE 2
DEILIVERY AND STORAGE OF MATERIALS All materials should be delivered and stored in their original unopened package and stored in an enclosed shelter providing protection from damage and exposure to the elements. Even though the stability and durability of USG Durock® cement board is unaffected by the elements, moisture and temperature variations may have an effect on the bonding effectiveness of basecoats and adhesives. Store all USG Durock® cement board panels flat.
PAGE 3
LIMITATIONS TECHNICAL DATA 1. Designed for positive or negative uniform loads up to 60 psf. For complete information on the use of USG Durock® Brand panels in exterior systems, consult uniform load table on Page 4 for applicable positive or negative uniform loads on wall systems. 2. Wall applications: Maximum stud spacing: 16" o.c. (24" o.c. for cavity shaft wall assembly).
PAGE 4
UNIFORM LOAD—1/2" USG DUROCK® BRAND CEMENT BOARD Stud Spacing Fastener Spacing Design Wind Load (I/240) Design Wind Load (I/360) 12" o.c. 8" o.c. 45 psf 45 psf 6" o.c. 60 psf 60 psf 16" o.c. 24" o.c. (for shaft wall assemblies only) SUBMITTAL APPROVALS 8" o.c. 33 psf 30 psf 6" o.c. 45 psf 30 psf 8" o.c. 13 psf 9 psf 6" o.c. 13 psf 9 psf Job Name Contractor Date PRODUCT INFORMATION See usg.com for the most up-to-date product information. DANGER Causes skin irritation.