Installation Guide

English | 8
FINISHING WITH PAINT, WALLPAPER
OR TEXTURE (Interior application only)
1 | Painting or Wallpapering
Apply a drywall primer suitable for high-moisture areas, as recommended
by the paint manufacturer. Paint HardieBacker
®
Cement Board with
HydroDefense
™
Technology as you would drywall. If wallpapering, prime
surface of the cement board with a primer suitable for high-moisture areas as
recommended by the wallpaper manufacturer.
2 | Texturing
Texture can be applied to HardieBacker
®
Cement Board with HydroDefense
™
Technology in the same way as drywall. Follow texture coating manufacturer's
application instructions.
STEAM ROOM APPLICATION
HardieBacker
®
Cement Board with HydroDefense
™
Technology is recognized for
use in residential steam rooms when installed over conventional framing and in
accordance with HardieBacker
®
Cement Board installation instructions, TCNA
guidelines (Tile Council of North America Handbook, www.tileusa.com), and
local building codes. Questions and concerns regarding steam room design and
construction should be directed to a knowledgeable professional.
EXTERIOR APPLICATION
Exterior applications are limited to HZ10 product zones. See page 11 for additional
information.
HardieBacker
®
Cement Board with HydroDefense
™
Technology may be used up
to a height not exceeding the lesser of: through the second-story above grade or
30 ft. above grade. The product must be installed over sub-sheathing with a code
approved water-resistive barrier, or in accordance with the applicable code. Install
flashings, clearances, and other building practices per local code. James Hardie
will assume no responsibility for water infiltration. Fasteners: Use a minimum
No.11 ga. 1-3/4 in. long roofing nails or No. 8 1-3/4 in. long 0.375 in HD or
ribbed wafer head corrosion resistant screws spaced a maximum of 8 in. OC into
supports.
The maximum weight of the overlayment (tiles, stones and veneers) is not to
exceed the code limit of 15 lbs/sq ft. Follow installation procedure in accordance
with the stone and mortar manufacturer’s recommendations. Stones must be free
of any substance that may impede proper adhesion. Skim coat is recommended
to be 1/8 in. – 1/4 in. thick and the tile/stone is to be installed while the skim coat
is wet.
CAUTIONS: Do not use HardieBacker
®
Cement Board with HydroDefense
™
Technology in any of the following applications:
• As a backer board in balcony railings and balcony parapet walls.
• Installed to a height exceeding through the second story above grade or
greater than 30 ft. above grade.