GLASROC TILE BACKER CERTAINTEED
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CertainTeed
GlasRoc Tile Backer
®
Diamondback
®
GlasRoc Tile Backer
®
Product Overview
Diamondback Tile Backer is a superior tile
®
substrate for walls and ceilings, especially
designed by CertainTeed to meet the demands
of high-moisture areas. Diamondback 1/4”
Tile Backer (6.4 mm) is suitable for use as an
underlayment for tile countertops and floor
applications. With an innovative, built-in moisture-
blocking coating that resists moisture at the
surface, Diamondback Tile Backer protects tile
installations and wall cavities from moisture
intrusion and excessive vapor transfer thereby
eliminating the need for a separate moisture
barrier. Because paperless tile backer boards
provide increased mold resistance, Diamondback
Tile Backer is well-suited for tile and non-tile Diamondback Sample
®
installations in wet and non-wet applications, areas
of high humidity and for fire-rated assemblies.
Advantages
Features • The unique texture coating and pattern
design create a superior bond between the
• Specially formulated water-resistant core.
board surface and tile adhesive that helps
• Excellent fire-resistance properties, prevent tile slippage during installation.
and numerous fire-rated designs.
• A superior water-resistant surface that
• Conformity to design and code inhibits water vapor permeance.
requirements.
• Mold resistance rating of 10 when
• Lifetime Limited Warranty for tested in accordance with ASTM D 3273.
residential applications.
• Up to 50% lighter weight than cement
• 20 Year Limited Warranty for backer boards and up to 20% lighter
commercial applications. weight than other ASTM C 1178 gypsum
•M
eets ASTM C 1178, which is recognized by tile backer boards.
the Tile Council of North America (TCNA). • Cuts like regular gypsum board and is easy
• Meets ASTM C 627 Robinson Floor Test for to handle and install – with minimal skin
use as underlayment [1/4” (6.4 mm)] irritation due to embedded glass mats.
• Reduced surface alkalinity versus • Low VOCs; GREENGUARD Children and
conventional cement board. Schools Certified.
SM
GlasRoc Products – Superior Technology
®
CertainTeed’s GlasRoc products feature unique Embedded
®
Glass Reinforced Gypsum (EGRG ) technology. This patent-
® ®
Textured coating
ed* technology combines a protective coating on the face, bonded to a
polymer-modified
with reinforced glass mats embedded into a water-resistant gypsum surface
gypsum core, positioned beneath a polymer-modified
gypsum surface. The GlasRoc offering provides: Specially formulated
water resistant core
• Water-resistant, paperless surface that is designed to
meet the requirements of the application.
Reinforcing glass
• Numerous fire-rated assembly designs for safety and mats embedded
beneath a layer
performance.
of gypsum
• Moisture and mold resistance for protection and durability.
• Lightweight and designed to cut like regular gypsum board *Covered by U.S. Patent No. 6,524,679;
for ease of installation. 6,878,321; 6,866,492; and other patents pending.
2
Technical Properties Through the responsible
Properties Diamondback Tile Backer
®
Diamondback Tile Backer
®
Diamondback Tile Backer
® development of innovative
1/4” (6.4 mm) 1/2” (12.7 mm) Type X 5/8” (15.9 mm)
and sustainable building
Sizes Available* 3’ x 5’ (915 mm x 1525 mm) 32” x 5’ (815 mm x 1525 mm) 4’ x 5’ (1220 mm x 1525 mm)
4’ x 4’ (1220 mm x 1220 mm) 3’ x 5’ (915 mm x 1525 mm) 4’ x 8’ (1220 mm x 2440 mm) products, CertainTeed has
4’ x 5’ (1220 mm x 1525 mm)
helped shape the building
4’ x 8’ (1220 mm x 2440 mm)
Weight - Lbs/Sq.Ft. (Kg/m ) 2
1.6 (7.8) 1.6 (7.8) **** 2.4 (11.7) products industry for more
Flame Spread / Smoke Developed*** less than 25/50 less than 25/50 less than 25/50
than 100 years. Founded in
Mold Resistance Rating** 10 10 10
Standard Specification ASTM C 1178 ASTM C 1178 ASTM C 1178
1904 as General Roofing
* Other lengths available. Ask your CertainTeed sales representative. Manufacturing Company,
** No mold growth detected. Note that 10 is highest rating possible.
*** Tested per ASTM E 84, CAN/ULC-S102.
**** Improved lighter weight formulation. the firm’s slogan “Quality
Made Certain, Satisfaction
Code Compliance and Testing Standards Guaranteed,” quickly
Diamondback Tile Backer is IRC, IBC
®
Under certain job site conditions, mold inspired the name
and National Building Code of Canada resistance for building products may
CertainTeed. Today,
compliant in 1/4” (6.4 mm), 1/2” (12.7 produce different results than those
mm) and 5/8” (15.9 mm) thicknesses achieved in a controlled, laboratory CertainTeed is North
®
and meets ASTM C 1178 as a glass setting; however, when handled properly,
mat water-resistant gypsum backing using appropriate design methods and America’s leading brand
panel for use as a tile backer, as construction practices, CertainTeed’s
of exterior and interior
recognized by the Tile Council of North Embedded Glass Reinforced Gypsum ®
America (TCNA). (EGRG ) Technology provides
®
building products, including
increased mold resistance compared
The TCNA recommends the use of a to standard moisture resistant paper roofing, siding, fence,
moisture barrier behind cement backer faced wallboard. decking, railing, trim,
boards in wet areas; however,
Diamondback Tile Backer has a built-in Diamondback Tile Backer foundations, pipe,
moisture barrier that stops moisture at meets ASTM C 1178, which is
insulation, gypsum,
the surface, thereby eliminating the referenced by the Tile Council
need for an additional barrier. of North America (TCNA). ceilings and access covers.
Mold Resistance Test – When tested 1/4” (6.4 mm) Diamondback Tile
in accordance with ASTM D 3273, Backer has passed the ASTM C 627
Diamondback Tile Backer exhibited no Robinson Floor Test for residential
evidence of mold or fungal growth and light commercial floors. This
after a period of 28 days of exposure, includes TCNA Recognition for
yielding a rating of 10, the best level of specific Floor Systems.
performance for mold resistance.
Contents:
Product Overview........................... 2
Technical Properties....................... 3
Code Compliance and Testing...... 3
Floors................................................ 4
Tub/Shower Walls or Ceilings . . . 4-5
Countertops...................................... 6
Non-Tile Walls or Ceilings.............. 6
Fire-Rated Assemblies.................... 7
Gypsum Board & Finishing Products from CertainTeed • Call Toll Free 800-233-8990 • www.certainteed.com/gypsum 3
Bathtub and Shower Walls, Ceilings and Floors
Walls or Ceilings
When using Diamondback Tile Backer
®
Diamondback Tile Backer, use 1-1/2” (38 mm) interior residential and light commercial
as a tile substrate in residential wall (minimum) corrosion- resistant backerboard floor tile applications as defined in the
applications, panels should be installed screws. For 5/8” (15.9 mm) Diamondback TCNA Handbook for Ceramic, Glass, and
with the textured side facing the interior. Tile Backer, use 1-5/8” (41 mm) (minimum) Stone Tile Installation.
Tiles should always be applied to the corrosion-resistant backerboard screws.
textured side. Using nominal 2” (50 mm) wide alkali- Install 1/4” (6.4 mm) Diamondback Tile
resistant fiberglass mesh tape such as Backer over the 3/4” (19.1 mm) plywood
Diamondback Tile Backer can be scored FibaTape Cement Board Tape, bed tape on
®
subfloor with the textured pattern side up
and cut with a standard utility knife and all joints and corners with material used to using a latex-modified thinset (ANSI
requires no special tools. Working from the set tiles. Apply sealant to seal fixture and A118.4 or better) liberally applied with a
textured side, pieces snap after scoring only plumbing penetrations and abutments to 1/2” x 1/2” (12.7 x 12.7 mm) square-tooth
one face. After cutting panels to required dissimilar materials. If Diamondback Tile notched trowel. The Diamondback Tile
size, make cutouts and then snug fit ends Backer meets gypsum board outside the Backer is embedded into the mortar while
and edges, being certain not to leave gaps shower, and tiles extend beyond the still pliant. Diamondback Tile Backer board
between panels. gypsum board joint and Diamondback Tile joints are to be staggered to not align
Backer, apply nominal 2” (50 mm) wide with the subfloor joints and butted tightly.
When used as a tile substrate for walls, alkali-resistant fiberglass mesh tape, such Fasten Diamondback Tile Backer to the
minimum 20-gauge steel or wood framing as FibaTape Cement Board Tape, to the
®
subfloor with 1-1/4” (32 mm) corrosion-
should not exceed 16” (400 mm) o.c. joint and skim with latex-modified thinset. resistant screws beginning in the center
without blocking for 1/2” (12.7 mm); or 24” of each board and working toward the
(610 mm) o.c. for 5/8” (15.9 mm). Panels If Diamondback Tile Backer meets edges. Space fasteners a maximum
can be applied horizontally or vertically. gypsum board outside the shower, and 8” (200 mm) o.c. in both directions, driv-
tiles end before the gypsum board joint ing them flush with the surface (Do Not
When used as a tile substrate for ceilings, and Diamondback Tile Backer, apply Countersink). Apply a thin coat of latex-
panels should be applied perpendicular to nominal 2” (50 mm) wide fiberglass mesh modified thinset (ANSI A118.4 or better) to
framing. Framing should be spaced no tape such as FibaTape Mold-X10 ® TM board joints and embed 2” wide alkali-
greater than 12” (300 mm) o.c. for 1/2” Drywall Tape to the joint and skim with resistant fiberglass mesh tape with latex-
(12.7 mm) thickness or 16” (400 mm) o.c. setting type joint compound, such as modified thinset. Apply flooring-grade tile
for 5/8” (15.9 mm) thickness. For walls and CertainTeed M2Tech 90, in order to
® ® with latex-modified thinset (ANSI A118.4 or
ceilings, fasteners should be spaced 6” create a smooth, paintable surface. better) using a 1/4” x 1/4” (6.4 x 6.4 mm)
(150 mm) o.c. on wood and metal framing. square-tooth notched trowel. Use a 2” x 2”
Drive fasteners flush with textured surface Residential and Light (51 x 51 mm) or larger floor-grade tile.
and do not countersink. Use 1-1/2” (38 mm) Commercial Floors Apply standard floor grout (ANSI A118.6)
galvanized roofing nails for 1/2” (12.7 mm) or polymer modified grout (ANSI A118.7)
and 1-3/4” (44 mm) for 5/8” (15.9 mm) 1/4” (6.4 mm) Diamondback Tile Backer is to the tile joints in accordance with
Diamondback Tile Backer. For 1/2” (12.7 mm) approved for use as an underlayment for manufacturer’s application instructions.
Special notes:
Do not use an additional moisture barrier. 1/2” (12.7 mm) or 5/8” (15.9 mm)
Diamondback Tile Backer
®
(Diamondback Tile Backer has a built-in
moisture barrier) . Tiles
FibaTape Cement
®
Tile adhesive ( latex-modified Board Tape
• Do not use all-purpose joint compound or
thinset meeting ANSI A118.4)
paper tape in wet areas. Use nominal
2” (50 mm) wide alkali-resistant fiberglass
Wood or min. 20-gauge
mesh tape. metal framing
• In all corners, prior to applying the mesh
tape, apply a small bead of sealant to the
joint without spreading it over the face of Flexible sealant into
max 1/4” (6 mm) gap
Diamondback.
• Do not use Diamondback Tile Backer as a Bathtub
base for nailing and mechanical fastening.
• Do not laminate Diamondback Tile Backer
1/4” (6.4 mm) Diamondback ®
directly to concrete or masonry block. Tile Backer
Framing or furring of wall is necessary. Diagram 1
4
Shower Receptors
Before installing Diamondback Tile ®
Special notes: Do not place
Backer on walls ( see Diagram 2), Diamondback Tile Backer into
the shower pan or rubber membrane the shower mortar bed. Leave a
must be adequately sloped to the maximum 1/4” ( 6 mm ) gap and fill
main drain or weep -hole so as not to with flexible sealant.
impede proper water drainage.
1/2” (12.7 mm) or 5/8” (15.9 mm)
Diamondback Tile Backer
®
For showers with curbs, a waterproof
membrane must be applied up walls Tiles
for a minimum of 3” ( 75 mm) and a
maximum of 6” (150 mm) above the Tile adhesive (latex-modified
finished curb. Diamondback Tile thinset meeting ANSI A118.4)
Backer should not be used in the curb.
Flexible sealant into max.
1/4” (6 mm) gap
For showers without curbs, a water-
proof membrane should be applied Sloped rubber membrane
up walls for a minimum of 6” ( 150
mm) and a maximum of 8” ( 200 mm).
Satisfactory blocking should be applied
at the bottom framing (e.g., wood).
Sloped mortar bed
Diagram 2
Bathtub or Shower Receptor Shower Pan
Diamondback Tile Backer may be Additional Notes: Diamondback
applied on walls horizontally or vertically. Tile Backer may be applied on walls
horizontally or vertically.
Thoroughly filling the space between
the tile and tub with a flexible sealant
will help prevent water penetration. 1/2” (12.7 mm) or 5/8” (15.9 mm)
Diamondback Tile Backer
®
1/2” (12.7 mm) or 5/8” (15.9 mm)
Diamondback Tile Backer
®
Tiles
Tile adhesive
(latex-modified thinset
meeting ANSI A118.4)
Tile adhesive
Tiles (latex-modified thinset
meeting ANSI A118.4)
Fastener
Flexible sealant into max.
Flexible sealant into 1/4” (6 mm) gap
max. 1/4” (6 mm) gap
Bathtub
Shower pan
Fireproofing when required
Wood or metal studs
Diagram 3 Diagram 4
Gypsum Board & Finishing Products from CertainTeed • Call Toll Free 800-233-8990 • www.certainteed.com/gypsum 5
Countertops
When using Diamondback Tile Backer
®
Stagger joints of Diamondback
on countertops ( see Diagram 5 ), a Tile Backer panels with those of the 1/4” (6.4 mm) or 1/2” (12.7 mm)
Diamondback Tile Backer
®
minimum 23/ 32” (18.3 mm ) exterior plywood base, butting joints tightly.
glue plywood base must first be Tape all joints and corners using
Latex Portland Cement Mortar
installed flat and level, followed by a nominal 2” (50 mm) wide self-adhering, (meeting ANSI A118.4)
bedding coat of latex-modified thinset alkali-resistant fiberglass mesh tape,
on the plywood using a 1/4” x 1/4” x 1/4” such as FibaTape Cement Board Tape
®
Tile
( 6 mm x 6 mm x 6 mm ) notched and embed the tape with latex cement
Base min. 23/32”
trowel. Framing spacing should not mortar that meets ANSI A118.4. (18.3 mm) plywood
exceed 24” ( 610 mm ) o.c. Overhangs,
expansion/control joints on cantilever Install tile using latex-modified thinset,
counters must be supported to prevent expansion / control joints and grout in
movement. accordance with ANSI A108.
Apply clean, dry Diamondback Tile Backer Use a waterproof membrane
to the base with the textured side (ANSI A118.10) to seal edge
facing out prior to the leveling material and bottom of plywood
setting up. Fasten panel every 6” to 8” overhang at face of counter
(150 mm to 200 mm) o.c. in both direc- and all other plywood surfaces
tions, using 1-1/4” (32 mm) galvanized and edges that will be exposed to
roofing nails or 1-1/4” (32 mm) corro- water or moisture, especially around Framing support
sion-resistant backerboard screws. automatic dishwashers. Diagram 5
Non-Tile Walls or Ceilings
Non-Tile, Non-Wet,
High-Humidity Areas
Diamondback Tile Backer may also be paint or wallpaper application. If necessary
used in interior non-tile areas that do not to create a suitably smooth surface, apply an Finishing Products
come in contact with water, but that additional medium skim coat of all purpose
experience exposure to high levels of joint compound, such as CertainTeed All-
humidity intermittently, such as areas Purpose or Lite All-Purpose ready-mixed
outside tubs and showers in residential joint compounds. Before applying paint or
construction (see Diagram 6). wallpaper, the surface should be primed for
high-moisture areas as recommended by
For walls, wood framing or steel ( 25-gauge the product’s manufacturer for applications
min.) should be spaced no greater than over setting type joint compound.
16” (400 mm) o.c. for 1/2” (12.7 mm) 1/2” (12.7 mm) or 5/8” (15.9 mm) CertainTeed ®
CertainTeed
Diamondback Tile Backer and 24” (610 mm) Diamondback Tile Backer Light Sand 90 M2Tech 90
® ®
Setting Compound
o.c. for 5/8” (15.9 mm) Diamondback Tile
Backer. For ceilings, Diamondback Tile Backer
should be installed perpendicular to framing
with framing spaced no greater than 12”
(300 mm) o.c. for 1/2” (12.7 mm) thickness
and 16” (400 mm) o.c. for 5/8” thickness. 2” (50 mm)
wide Mold-X10 TM
FibaTape ® CertainTeed CertainTeed Mould
Apply nominal 2” (50 mm) wide fiberglass fiberglass
All-Purpose Resistant Lite
All-Purpose
mesh tape
mesh tape, such as FibaTape Mold-X10
® TM
Drywall Tape, over joints and angles,
embedding the tape in a setting-type joint
compound, such as CertainTeed’s mold
resistant CertainTeed M2Tech 90 Setting
® ®
Compound. Using a trowel, apply a heavy FibaTape FibaTape
® ®
Primer and paint CertainTeed M2Tech
® ®
Mold-X10 Cement
skim coat to the entire panel with the 90 Setting Compound Drywall Tape Board Tape
(Skim Coat)
compound to create a smooth surface for
Diagram 6
6
Fire-Rated Assemblies
Diamondback Tile Backer Type X: The Ultimate Choice
®
• CertainTeed offers over 70 Type X fire-rated designs in the GlasRoc family. ®
• 5/8” (15.9 mm) Diamondback Tile Backer meets Type X requirements.
®
• Tile installation is not required to achieve a 1- or 2-hour fire rating.
• Aligns perfectly with 5/8” (15.9 mm ) CertainTeed and M2Tech Type X gypsum board and is UL Classified.
®
1-Hour Fire Rating 2-Hour Fire Rating 2-Hour Fire Rating
Test Reference: UL U305 Test Reference: UL U301 Test Reference: UL U411
Partition Thickness: 4-3/4” (120.7 mm) Partition Thickness: 6” ( 152 mm) Partition Thickness: 5” (127 mm )
Weight, lbs. per Sq. Ft.: 6.8 (33.2 Kg/m )
2
Weight, lbs. per Sq. Ft.: 12.0 (58.6 Kg/m )2
Weight, lbs. per Sq. Ft.: 11 ( 53.7 Kg/m ) 2
5/8” (15.9 mm) Diamondback Tile®
Base Layer: 5/8” (15.9 mm) CertainTeed ® Base Layer: 5/8” (15.9 mm) CertainTeed
Backer Type X applied parallel or at and M2Tech Type X or Diamondback
® and M2Tech Type X or Diamondback
®
right angles to 2 x 4 wood studs 16” Tile Backer Type X gypsum board. Base Tile Backer Type X gypsum board
(400 mm) o.c. with 1-7/8” (48 mm) layer attached horizontally or vertically applied parallel to each side of 2-1/2”
phosphate coated nails 7” (175 mm) to minimum 2 x 4 wood studs ( 64 mm ) metal studs 24” (600 mm)
o.c. Joints staggered each side and 16” (400 mm) o.c. with 1-7/8” (48 mm) o.c. with 1” (25 mm) Type S screws 16”
covered with nominal 2” (50 mm) wide nails spaced 6” (150 mm) o.c. (400 mm) o.c.
10 x 10 alkali-resistant fiberglass mesh
Face Layer: 5/8” (15.9 mm ) Face Layer: 5/8” (15.9 mm)
tape and tile adhesive. ( Load bearing)
Diamondback Tile Backer Type X Diamondback Tile Backer Type X
applied horizontally or vertically. Face applied parallel to each side of studs
layer attached to studs over base layer with 1-5/8” (41 mm) Type S screws 16”
with 2-3/8” ( 60 mm ) nails spaced 8” (400 mm) o.c. at edge joints, 12” ( 300
(200 mm ) o.c. Vertical joints located over mm ) o.c. at perimeter and intermediate
studs. All joints in face layers staggered studs. Stagger joints 24” ( 600 mm) o.c.
with joints in base layers. Joints of each each layer and side. ( Non-load bearing )
base layer offset with joints of base See “UL Fire Resistance Directory” for additional
layer on opposite side. (Load bearing ) fire-rated assemblies.
Gypsum Board & Finishing Products from CertainTeed • Call Toll Free 800-233-8990 • www.certainteed.com/gypsum 7
Diamondback Tile Backer Benefits ®
Better Physical Performance Easy to Handle and Install Low VOCs; GREENGUARD
Tested in accordance with ASTM C Diamondback Tile Backer is handled and Children & Schools Certified SM
1178, Diamondback Tile Backer ®
installed like regular paper-faced gypsum. Moisture and Mold Resistance
meets or exceeds all physical
In addition, it: Because Diamondback Tile Backer
property requirements.
• Is significantly lighter than contains no starches or sugars, it
Enhanced Dimensional Stability conventional cement board, naturally resists mold growth. When
resulting in lower installation cost. tested in accordance with ASTM D
Diamondback Tile Backer resists
delamination, rippling, buckling and sag- • The unique texture coating and 3273, Diamondback Tile Backer
ging related to environmental conditions, pattern design create a superior exhibited no evidence of mold after a
such as changes in temperature and bond between the board surface period of 28 days of exposure, yielding a
relative humidity. Diamondback Tile and tile adhesive that helps prevent rating of 10, the best rating possible.
Backer will provide a flat and uniform tile slippage during installation. Increased Durability
substrate for tile applications. To back it •M
oisture barrier face eliminates the
Diamondback Tile Backer resists
up, CertainTeed provides a lifetime need for additional moisture/vapor
delaminating because the glass
limited warranty for residential retarder.
mats are embedded into the
applications and a 20 year limited •C
an be scored and cut with a standard panel, creating a more durable,
warranty for commercial applications. utility knife. No power tools required, dimensionally stable panel.
reducing the amount of particle dust
Enhanced Fire Protection Standards and Code Compliance
versus conventional cement board.
Testing in accordance with ASTM E 136 Diamondback Tile Backer conforms to
• Snaps free after scoring only one face
proved that Diamondback Tile Backer Type ASTM C 1178 standards for glass mat
X is noncombustible and offers superior • Is easier to handle because skin
water- resistant gypsum backing panel
fire performance. It achieves a flame- irritations are minimized due to
for use as a tile backer. Installation
spread/smoke developed rating of less embedded glass mats and our
standards, where applicable, are per
than 25/50 when tested per ASTM E 84, innovative coating on the face.
the Tile Council of North America Inc.’s
CAN/ULC-S102. Diamondback Tile • Has uniform field and edge hardness, TCNA Handbook for Ceramic, Glass
Backer Type X is UL Classified for Fire making trimming and fastening and Stone Tile Installation for glass mat
resistance for use in fire rated designs. quick and easy, as well as, reducing water-resistant gypsum backer board.
( UL Designation – Type EGRG or GlasRoc ) occurrence of overdriven fasteners.
FibaTape is a registered trademark of Saint-Gobain ADFORS. CertainTeed is a trademark of CertainTeed Corporation. All other trademarks are the property of CertainTeed’s affiliates and related
companies.
NOTICE: The information in this document is subject to change without notice. CertainTeed assumes no responsibility for any errors that may inadvertently appear in this document.
Confidence worth building on.™
Confidence worth building on
www.certainteed.com/gypsum
© 12/10
© 12/12 CertainTeed
CertainTeed Gypsum.
Corporation, Rev. 03-2013
Printed in U.S.A.
Printed in U.S.A. on recycled paper.
CodeCTG-2504/3M
No. CTG-2633
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