Installation Guide

ManualsBrandsUnbranded ManualsBuilding materialsHardieWrap 9 ft. x 150 ft. Weather Barrier

HardieWrap

weather barrier is a non-woven, non-perforated polyolefin water-resistive barrier, as per AC38,

manufactured by James Hardie Building Products. HardieWrap weather barrier provides a balance of water resistance

and breathability to protect homes from the elements of weather that can get behind the exterior wall cladding.

HardieWrap

Pro Flashing and HardieWrap

Seam Tape are recommended in conjunction with HardieWrap weather

barrier to complete the HardieWrap weather barrier solution.*

A water-resistive barrier is required in accordance with local building code requirements. The water-resistive barrier must

be installed with penetration and junction flashing, in strict accordance with local building code requirements.

HW0904 1/14 P1/6

HARDIEWRAP

WEATHER BARRIER PRODUCT DESCRIPTION

EFFECTIVE APRIL 2009

INSTALLATION REQUIREMENTS

HardieWrap weather barrier should be stored in a covered area. Do not store in direct sunlight and do not expose to

building site chemicals.

STORAGE

IMPORTANT: FAILURE TO INSTALL THIS PRODUCT IN ACCORDANCE WITH APPLICABLE BUILDING CODES AND WITH

JAMES HARDIE WRITTEN APPLICATION INSTRUCTIONS MAY LEAD TO PERSONAL INJURY, AFFECT PERFORMANCE,

VIOLATE LOCAL BUILDING CODES, AND VOID THE PRODUCT-ONLY WARRANTY.

figure 1

Code-approved sheathing

(by others)

tape vertical seams

Code-approved sheathing

(by others)

overlap by 6"

tape horizontal seams

cover sill plate

foundation

interface by

a minimum of 1"

sill plate

(by others)

extend a minimum of

6" around a corner

staple fastener every 18"

overlap by 6"

figure 1A

6" overlap

HardieWrap

Seam Tape

lower layer

HardieWrap

weather barrier

upper layer

HardieWrap

weather barrier

The installation guidelines herein are informational in nature only and may not be appropriate for use in all applications. It

is the sole responsibility of the architect or specifier to identify moisture-related risks associated with any particular

building design, and to make any appropriate adjustments or modifications to the installation guidelines herein. Wall-

construction design must effectively manage moisture, considering both the interior and exterior environment of the

building, particularly in buildings that have higher risks of wind-driven rain penetration and conditioned spaces.

HardieWrap weather barrier may be installed on vertical wall applications only. James Hardie requires that HardieWrap

weather barrier be covered within 180 days of installation. Wall openings, penetrations, junctions, connections, window

sills, headers and jambs must incorporate appropriately installed HardieWrap Pro Flashing and HardieWrap Flex

Flashing, or other flashing or flashing details, as recommended by the architect or specifier.

GENERAL REQUIREMENT—DESIG

HardieWrap weather barrier should be installed before window and door installation. It is not recommended to install

HardieWrap weather barrier on saturated sheathing. HardieWrap weather barrier can become slippery and should not be

used in any application where it may be walked on.

Begin by affixing weather barrier, extending at least 6" around a building corner (fig. 1).

Unroll horizontally (with print

side

facing out) around the building, covering

rough window and door openings.

Fasten to studs or nailable sheathing

material with galvanized construction-

grade staples a maximum of 18" in the

vertical and horizontal directions.

Attach weather barrier so that it is taut

and flat. The vertical overlap must be

a minimum of 6" and the vertical seam

must be taped. HardieWrap Seam Tape

is strongly recommended. Do not

clog or interfere with the use of weep

holes or similar drainage details.

Ensure that the bottom edge of the

weather barrier extends over the sill plate

and foundation interface by at least 1".

Overlap upper layers of weather barrier

(in shingle lap fashion) by a minimum

of 6" below the horizontal edge, and

tape the horizontal seam

line (fig. 1A).

INSTALLATION OF HARDIEWRAP

WEATHER BARRIER

HardieWrap

Weather Barrier and HardieWrap

Pro Flashing

*The HardieWrap weather barrier solution is based on methods of installation from the AAMA and ASTM E2112. HardieWrap weather barrier helps to reduce the intrusion of moisture or air, but is not designed

nor guaranteed to prevent the intrusion of all moisture or air.

HardieWrap Pro Flashing (Top Piece)

HardieWrap Pro Flashing

(Bottom Piece)

HardieWrap Pro Flashing

At roof-to-wall intersection (or wall-to-deck), affix wrap to the

wall such that it overlaps any step flashing already on the wall by

at least 2" (fig. 2).

Step 1: Use the inverted "Y" cut at rough window

and door openings. Do not place fasteners within

9" of the rough opening, door or window heads.

This area should not be fastened to allow for proper

flashing installation. At the top corners of the rough

opening, cut the weather barrier at 45° to extend 9"

past the joint (fig. 3).

Step 2: Fold the top flap up and out of the way and

fasten temporarily (fig. 4).

Step 3: Fold the remaining three flaps in through the

opening, fastening them inside with staples (fig. 5).

INSTALLATION OF HARDIEWRAP

WEATHER BARRIER (CONT.)

HW0904 P2/6

figure 2

HardieWrap weather barrier is not designed nor guaranteed to prevent moisture or air from intruding behind the weather

barrier. Ensure that appropriate flashing has previously been installed around all windows and door openings.

WINDOWS AND OTHER PENETRATIONS

Pro Flashing is typically utilized at windows, doors, junctions and penetrations, and must be installed in conjunction

with HardieWrap

weather barrier. Consult with the architect or specifier regarding the type and method of flashing to

be utilized.

Check your local Building Code for construction requirements and follow the manufacturer’s recommended installation

instructions; or utilize standard practices for the installation of exterior windows and doors as referenced in ASTM

E2112-01 or AAMA 2400-2 (CAWM 400-95). For specific flashing details and options, reference James Hardie's

HardieWrap Pro Flashing Guide.

PRO FLASHING INSTALLATION

TYPICAL WINDOW INSTALLATION METHODS

TYPICAL PENETRATION FLASHING METHODS

For rough electrical or plumbing penetrations, seal with flashing. Install the top piece over the bottom piece (figs. 7 and

8). HardieWrap Pro Flashing can be used for this application.

The penetration detailed in figures 7 and 8 as found in the EEBA Water Management Guide.

figure 5

figure 8

figure 3

figure 4

figure 6

figure 7

Do not place fasteners

in this area

9" cut

45°

Step

ﬂashing

Water-r

esistive barrier laps

over the step ﬂashing and

the rooﬁng felt

Rooﬁng felt

Self-adhering membrane

Bottom piece

of step ﬂashing

is cut and bent

to divert runoff

water away from

the wall

Drip edge

and fascia

cut lines

Sealant

HW0904 P3/6

✓ Do not store HardieWrap weather barrier in direct sunlight.

✓ It is recommended that weather barrier be installed over dry framing and sheathing.

✓ Tape all vertical and horizontal seams.

✓ Overlap subsequent weather barrier layers in shingle lap fashion with seams overlapping by at least 6".

✓ Be sure that all penetrations are addressed.

✓ Fasten with construction-grade galvanized staples a maximum of 18" in the vertical and horizontal directions.

✓ Repair punctures or tears, by the recommended practices.

✓ Do not use HardieWrap weather barrier in applications where it may be walked on.

✓ James Hardie requires that HardieWrap weather barrier be covered within 180 days of installation.

GENERAL REQUIREMENT CHECKLIST

For further information, consult James Hardie at 1-866-4HARDIE or www.hardiewrap.com.

For minor punctures or tears less than 3", cover and

completely seal with HardieWrap Seam Tape (fig. 9). For

larger holes greater than 3", use slit-flashing technique. Slit-

flashing requires making a horizontal slit above the damaged

area and placing a cut piece of HardieWrap weather barrier

into the slit, covering the damaged area. Tape the perimeter

of the patched area (fig. 10).

REPAIRS

slide HardieWrap weather barrier under slit

existing HardieWrap weather barrier

a tear on

HardieWrap weather barrier

patch

tape

horizontal

slit

tape perimeter of

patched area

cut a horizontal slit above damaged area

figure 10

figure 9

Staples are the preferred and recommended fastening method. Fasten HardieWrap weather barrier in such a way that

ensures the wrap is secured to the wall with staples a maximum of 18" O.C. (on center) in the vertical and horizontal

direction. Staples should be construction-grade and must be galvanized.

When installing over insulation boards, use galvanized roofing nails long enough to penetrate insulation and framing

studs or sheathing.

Consult with the architect or specifier regarding the need to seal any punctures caused by staples, nails or other items.

FASTENERS

VISIT WWW.HARDIEWRAP.COM FOR THE MOST RECENT VERSION

Summary of content (6 pages)

PAGE 1
HardieWrap® Weather Barrier and HardieWrap® Pro Flashing INSTALLATION REQUIREMENTS EFFECTIVE APRIL 2009 VISIT WWW.HARDIEWRAP.COM FOR THE MOST RECENT VERSION IMPORTANT: FAILURE TO INSTALL THIS PRODUCT IN ACCORDANCE WITH APPLICABLE BUILDING CODES AND WITH JAMES HARDIE WRITTEN APPLICATION INSTRUCTIONS MAY LEAD TO PERSONAL INJURY, AFFECT PERFORMANCE, VIOLATE LOCAL BUILDING CODES, AND VOID THE PRODUCT-ONLY WARRANTY.
PAGE 2
gned INSTALLATION OF HARDIEWRAP® WEATHER BARRIER (CONT.) Self-adhering membrane At roof-to-wall intersection (or wall-to-deck), affix wrap to the wall such that it overlaps any step flashing already on the wall by at least 2" (fig. 2).
PAGE 3
FASTENERS Staples are the preferred and recommended fastening method. Fasten HardieWrap weather barrier in such a way that ensures the wrap is secured to the wall with staples a maximum of 18" O.C. (on center) in the vertical and horizontal direction. Staples should be construction-grade and must be galvanized. When installing over insulation boards, use galvanized roofing nails long enough to penetrate insulation and framing studs or sheathing.
PAGE 4
HardieWrap® Weather Barrier and HardieWrap® Pro Flashing INSTALLATION REQUIREMENTS EFFECTIVE APRIL 2009 VISIT WWW.HARDIEWRAP.COM FOR THE MOST RECENT VERSION HARDIEWRAP® PRO FLASHING GUIDE HARDIEWRAP® PRO FLASHING PRODUCT DESCRIPTION HardieWrap Pro Flashing and HardieWrap® Flex Flashing are high-performance, self-adhering, self-sealing, butylmaterial on tear-resistant top sheets that are applied around windows and doors to manage water and air intrusion.
PAGE 5
HARDIEWRAP® FLEX FLASHING STRETCHABLE SILL FLASHING Prepare sill flashing by cutting HardieWrap Flex Flashing at least 12" longer than the width of the rough opening. Install sill flashing by removing the release paper, centering sill flashing on sill framing stud and adhering into rough opening. The back edge of HardieWrap Flex Flashing should extend to the inside edge of sill framing stud and at least 6" up each jamb framing stud. (Note: Sill flashing should not wrap onto the inside of wall.
PAGE 6
CIRCULAR WINDOWS figure 10 Tape HardieWrap® Ta pe Ha rdi eWra p® e Tap p® ra Hardi eWra p® rd Hardi eW figure 9 HardieWrap® Tape HardieWrap® Tape HardieWrap® Tape figure 8 Ha Measure the circular portion of the window and add 12" to this number. Cut HardieWrap Flex Flashing to this length for the head flashing. Remove approximately 20" of release paper and position HardieWrap Flex Flashing tightly along the first edge of round window. Press firmly into place (figs. 8 and 9).