Installation Guide

ManualsBrandsJames Hardie ManualsFlooringHardieBacker 3 ft. x 5 ft. x 1/4 in. Cement Backerboard

Installation Guide

HardieBacker

Cement Board

500

HardieBacker

Cement Board

1/4 in

ESPAÑOL AL OTRO LADO

1 | English

CUTTING CEMENT HARDIEBACKER

BOARD

• Use a straight edge as a guide to score the

board’s face and snap upward along the

score line. We recommend using a carbide-

tipped scoring knife, but a utility knife may

also be used. The use of shears (manual,

electric or pneumatic) is also acceptable.

• For cutouts and small holes, score around

perimeter and break out from the face side

with hammer.

• NEVER use high-speed power tools (e.g.

saws, grinders, etc.) to cut James Hardie

products indoors as they may generate

excessive silica dust.

• NEVER dry sweep – Use wet dust suppression methods or HEPA vacuum for

clean-up.

• To further limit respirable silica dust exposures, wear a properly-ﬁtted, NIOSH-

approved dust mask or respirator (e.g. N-95 dust mask) in accordance with

applicable government regulations and manufacturer instructions.

COUNTERTOP INSTALLATION

1 | Ensure cabinets are level and secure

• Use minimum 1/2 in exterior grade plywood or equivalent, positioned across the

wood cabinet. Space between plywood supports is not to exceed 16 in on center.

2 | Determine layout of HardieBacker cement board

• Do not align HardieBacker cement board joints with plywood joints.

• Score and snap boards to required sizes and make necessary cutouts.

• We recommend an 1/8 in gap from board edges.

3 | Attach HardieBacker cement board to countertop

• Apply a supporting bed of dry-set mortar or modiﬁed thinset to plywood with a

1/4 in square-notched trowel. Mastic can also be used with a 5/32 in V-notched

trowel.

• Use the fastener pattern as a guide. Fasten HardieBacker cement board with

speciﬁed nails or screws (as listed in “Materials Required") every 8 in over the

entire surface. Keep fasteners between 3/8 in and 3/4 in from board edges and 2

in from board corners.

4 | Tape joints prior to tiling

• Prior to setting the tile, ﬁll all joints with the same mortar used to set the tiles.

• Embed 2 in wide high-strength alkali-resistant glass ﬁber tape in the mortar

and level.

5 | Exterior application (Limited to HardieBacker 500 in HZ10

climate zones)

‡

Additional details on page 4

• Follow Countertop installation steps 1 thru 4

• Mastic (organic adhesives) shall not be used in exterior applications

English | 2

FLOOR INSTALLATION

(Interior Application Only)

We recommend 1/4 in HardieBacker

board for ﬂoor applications, unless 1/2 in

thickness is needed for transition.

1 | Ensure subﬂoor is structurally

sound

On existing structures:

• Ensure subﬂoor is not damaged.

Replace any loose, warped, uneven or

damaged sections of ﬂoor.

• Make certain subﬂoor is a clean and ﬂat

surface.

For all ﬂoors:

• Use minimum 5/8 exterior grade plywood or 23/32 OSB with Exposure 1

classiﬁcation or better, complying with local building codes and ANSI A108.11.

• Joist spacing not to exceed 24 in on center.

• The ﬂoor must be engineered not to exceed the L/360 deﬂection criteria (L/720

for natural stone), including live and dead design loads, for the speciﬁc joist

spacing used.

2 | Determine layout of HardieBacker cement board

• Stagger all HardieBacker cement board joints. Do not align with subﬂoor joints.

• Never allow all four corners of boards to meet at one point.

• We recommend an 1/8 in gap between board edges.

• Keep sheet edges 1/8 in back from walls and cabinet bases.

• Score and snap boards to required sizes and make necessary cutouts.

3 | Attach HardieBacker cement

board to subﬂoor

• Apply a supporting bed of mortar or modiﬁed thinset to subﬂoor using a 1/4 in

square-notched trowel.

• Embed HardieBacker cement board ﬁrmly and evenly in the wet mortar.

• Use the fastener pattern as a guide. Fasten HardieBacker cement board with

speciﬁed nails or screws (as listed in “Materials Required”) every 8 in over the

entire surface. Keep fasteners between 3/8 in and 3/4 in from board edges and

2 in from board corners.

• Set fastener heads ﬂush with the surface without overdriving.

4 | Tape joints prior to tiling

• Prior to setting the tile, ﬁll all joints with the same mortar used to set the tiles.

• Embed 2 in wide high-strength alkali-resistant glass ﬁber tape in the mortar

and level.

Summary of content (8 pages)

PAGE 1
CUTTING CEMENT HARDIEBACKER® BOARD • Use a straight edge as a guide to score the board’s face and snap upward along the score line. We recommend using a carbidetipped scoring knife, but a utility knife may also be used. The use of shears (manual, electric or pneumatic) is also acceptable. • For cutouts and small holes, score around perimeter and break out from the face side with hammer. Installation Guide • NEVER use high-speed power tools (e.g. saws, grinders, etc.
PAGE 2
WALL INSTALLATION FINISHING WITH TILE 1. Refer to ANSI A108 and the mortar and tile manufacturers’ published application guidelines for complete tiling instructions. 1 | Ensure framing is structurally sound • Must comply with local building codes and ANSI A108.11. 2. Wipe the surface of HardieBacker® cement board clean with a damp sponge just prior to adding mastic or mortar.
PAGE 3
BASIC COMPOSITION 2 | Basements and crawl spaces 90% Portland cement and sand with selected additives. Contains no asbestos, formaldehyde, gypsum, paper facing, or abrasive aggregate. • Crawl spaces must be well ventilated with a minimum of 18 in between the ground and joists. A vapor barrier over the ground is required. Underlayment Installation 1 | Determine layout of HardieBacker® cement board • Install smooth side up. • Install HardieBacker boards perpendicular to subfloor panels.
PAGE 4
CHOSEN BY PROS. UNRIVALED IN PERFORMANCE. HardieBacker® Cement Board’s unique cement formulation and structure provide the ideal combination of strength, uniform composition and performance that no other backer board can provide. That’s why it was named The Most Preferred Brand of Backer Board by tile installers and contractors in the Tile and Stone Report*.
PAGE 5
PARA CORTAR LA TABLA DE CEMENTO HARDIEBACKER® • Use un borde recto como guía para marcar la cara de la tabla y rómpala hacia arriba a lo largo de la línea de marca. Recomendamos que use un cuchillo de marcar con punta de carburo, pero también se puede usar un cuchillo de uso general. El uso de tijeras (manuales, eléctricos o neumáticos) también es aceptable. Guía de instalación • Para recortes y huecos pequeños, marque alrededor del perímetro y rompa con un martillo por la parte de la cara.
PAGE 6
1 | Asegúrese de que el armazón esté estructuralmente firme • Debe cumplir con los códigos locales de construcción y ANSI A108.11. • Use montantes de madera de 2 pulgadas x 4 pulgadas mínimo o montantes de metal de calibre 20 los cuales deben estar derechos, adecuadamente alineados y espaciados a un máximo de 16 pulgadas al centro. • En tinas y cabinas de duchas, asegúrese de que el armazón esté reforzado adecuadamente en las esquinas. 5.
PAGE 7
INSTALACIÓN DE LA BASE DE PISO COMPOSICIÓN BÁSICA 1 | Determine la distribución del fibrocemento HardieBacker 90% de cemento de Portland y arena con aditivos seleccionados. No contiene asbestos, formaldehído, yeso, papel de fachada o agregados abrasivos. • Instale la parte lisa hacia arriba. • Instale las tablas HardieBacker de forma perpendicular a los paneles del contrapiso. • Alterne todas las juntas del fibrocemento HardieBacker.
PAGE 8
SELECCIONADO POR PROFESIONALES. DESEMPEÑO SIN IGUAL. La singular formulación de cemento y la estructura del tablero de cemento HardieBacker ® Cement Board provee una combinación ideal de fortaleza, composición uniforme y desempeño que ningún otro tablero de cemento puede proveer. Por eso fue nombrada la Marca de mayor preferencia de paneles de respaldo por los instaladores de azulejo y contratistas en el informe Tile and Stone Report*.