Installation Guide

ManualsBrandsJames Hardie ManualsFiber Cement Siding Panels6921111

IMPORTANT: To prevent damage to the drip edge, extra care should be taken when removing planks from the pallet, while handling, and when installing with a lap gauge. Please see

additional handling requirements on page 4.

GENERAL REQUIREMENTS:

• HardiePlank

lap siding can be installed over braced wood or steel studs, 20 gauge (33 mils) minimum to 16 gauge (54 mils) maximum, spaced a maximum of 24 in o.c. or directly to

minimum 7/16 in thick OSB sheathing. See General Fastening Requirements. Irregularities in framing and sheathing can mirror through the ﬁnished application. Correct irregularities

before installing siding.

• Information on installing James Hardie products over non-nailable substrates (ex: gypsum, foam,etc.) can be located in JH Tech Bulletin 19 at www.jamehardie.com

• A water-resistive barrier is required in accordance with local building code requirements. The water-resistive barrier must be appropriately installed with penetration and junction ﬂashing

in accordance with local building code requirements. James Hardie will assume no responsibility for water inﬁltration. James Hardie does manufacture HardieWrap

Weather Barrier, a

non-woven non-perforated housewrap¹, which complies with building code requirements.

• Adjacent ﬁnished grade must slope away from the building in accordance with local building codes - typically a minimum of 6 in. in

the ﬁrst 10 ft..

• Do not use HardiePlank lap siding in Fascia or Trim applications.

• Do not install James Hardie products, such that they may remain in contact with standing water.

• HardiePlank lap siding may be installed on ﬂat vertical wall applications only.

• For larger projects, including commercial and multi-family projects, where the span of the wall is

signiﬁcant in length, the designer and/or architect should take into consideration the coefﬁcient of thermal expansion and

moisture movement of the product in their design. These values can be found in the Technical Bulletin “Expansion Characteristics

of James Hardie

Siding Products” at www.jameshardie.com.

• James Hardie Building Products provides installation /wind load information for buildings with a maximum mean roof height of 85

feet. For information on installations above 60 feet, please contact JH technical support.

Figure 2

Install planks in

moderate contact

at butt joints

stud

Nail 3/8 in. from

edge of plank

water-

resistive

barrier

joint

ﬂashing

Install a 1 1/4 in. starter strip to

ensure a consistent plank angle

24 in. o.c. max.

Leave appropriate gap between

planks and trim, then caulk.*

water-resistive

barrier

plywood or

OSB sheathing

let-in bracing

fastener

water-resistive

barrier

Double Wall

Construction

Single Wall

Construction

Note: Field painting over caulking may produce a sheen difference when compared to the ﬁeld painted PrimePlus. *Refer to Caulking section in these instructions.

¹For additional information on HardieWrap® Weather Barrier, consult James Hardie at 1-866-4Hardie or www.hardiewrap.com

INSTALLATION:

JOINT TREATMENT

One or more of the following joint treatment options are

required by code (as referenced 2009 IRC R703.10.2)

A. Joint Flashing (James Hardie recommended)

B. Caulking* (Caulking is not recommended

for ColorPlus for aesthetic reasons as the

Caulking and ColorPlus will weather differently.

For the same reason, do not caulk nail heads on

ColorPlus products.)

C. “H” jointer cover

Nail line (If nail line is not

present, place fastener

between 3/4 in. & 1 in.

from top of plank)

IMPORTANT: FAILURE TO FOLLOW JAMES HARDIE WRITTEN INSTALLATION INSTRUCTIONS AND COMPLY WITH APPLICABLE BUILDING CODES MAY VIOLATE LOCAL LAWS, AFFECT

BUILDING ENVELOPE PERFORMANCE AND MAY AFFECT WARRANTY COVERAGE. FAILURE TO COMPLY WITH ALL HEALTH AND SAFETY REGULATIONS WHEN CUTTING AND INSTALLING

THIS PRODUCT MAY RESULT IN PERSONAL INJURY. BEFORE INSTALLATION, CONFIRM YOU ARE USING THE CORRECT HARDIEZONE® PRODUCT INSTRUCTIONS BY VISITING

HARDIEZONE.COM OR CALL 1-866-942-7343 (866-9-HARDIE)

Visit jameshardiepros.com for the most recent version.

EFFECTIVE SEPTEMBER 2019

SELECT CEDARMILL

| SMOOTH | BEADED CEDARMILL

| BEADED SMOOTH

HardiePlank

Lap Siding

HS11117 P1/4 09/19

Figure 1

Store ﬂat and keep dry and covered prior to

installation. Installing siding wet or saturated may

result in shrinkage at butt joints. Carry planks on

edge. Protect edges and corners from breakage.

James Hardie is not responsible for damage caused

by improper storage and

handling of the

product.

OUTDOORS

1. Position cutting station so that airﬂow blows dust away from the

user and others near the cutting area.

2. Cut using one of the following methods:

a. Best: Circular saw equipped with a HardieBlade

saw blade

and attached vacuum dust collection system. Shears

(manual, pneumatic or electric) may also be used, not

recommended for products thicker than 7/16 in.

b. Better: Circular saw equipped with a dust collection feature

(e.g. Roan

saw) and a HardieBlade saw blade.

c. Good: Circular saw equipped with a HardieBlade saw blade.

INDOORS

DO NOT grind or cut with a power saw indoors. Cut using shears (manual, pneumatic or

electric) or the score and snap method, not recommended for products thicker than 7/16 in.

- DO NOT dry sweep dust; use wet dust suppression or vacuum to collect dust.

- For maximum dust reduction, James Hardie recommends using the “Best” cutting

practices. Always follow the equipment manufacturer’s instructions for proper operation.

- For best performance when cutting with a circular saw, James Hardie recommends

using HardieBlade

saw blades.

- Go to jameshardiepros.com for additional cutting and dust control recommendations.

CUTTING INSTRUCTIONS

STORAGE & HANDLING:

IMPORTANT: The Occupational Safety and Health Administration (OSHA) regulates workplace exposure to silica dust. For construction sites, OSHA has deemed

that cutting ﬁber cement with a circular saw having a blade diameter less than 8 inches and connected to a commercially available dust collection system per

manufacturer’s instructions results in exposures below the OSHA Permissible Exposure Limit (PEL) for respirable crystalline silica, without the need for additional

respiratory protection.

If you are unsure about how to comply with OSHA silica dust regulations, consult a qualiﬁed industrial hygienist or safety professional, or contact your James

Hardie technical sales representative for assistance. James Hardie makes no representation or warranty that adopting a particular cutting practice will assure

your compliance with OSHA rules or other applicable laws and safety requirements.

Summary of content (4 pages)

PAGE 1
HardiePlank Lap Siding ® EFFECTIVE SEPTEMBER 2019 IMPORTANT: FAILURE TO FOLLOW JAMES HARDIE WRITTEN INSTALLATION INSTRUCTIONS AND COMPLY WITH APPLICABLE BUILDING CODES MAY VIOLATE LOCAL LAWS, AFFECT BUILDING ENVELOPE PERFORMANCE AND MAY AFFECT WARRANTY COVERAGE. FAILURE TO COMPLY WITH ALL HEALTH AND SAFETY REGULATIONS WHEN CUTTING AND INSTALLING THIS PRODUCT MAY RESULT IN PERSONAL INJURY. BEFORE INSTALLATION, CONFIRM YOU ARE USING THE CORRECT HARDIEZONE® PRODUCT INSTRUCTIONS BY VISITING HARDIEZONE.
PAGE 2
HardiePlank® Lap Siding CLEARANCE AND FLASHING REQUIREMENTS Figure 3 Figure 4 Roof to Wall Figure 5 Horizontal Flashing Min. ¼ in. Do not caulk Min. 2 in. Deck to Wall Slabs, Path, Steps to Siding As required by IRC code min 4 in. x 4 in. Z-Flashing Figure 7 Figure 6 Kickout Flashing Figure 8 Min. 2 in. Figure 9 Ground to Siding Figure 10 Gutter to Siding Sheltered Areas Min. 2 in. Mortar/Masonry L-Flashing Z-Flashing Z-Flashing Figure 11 Z-Flashing Min. ¼ in. 6 in. Min. ½ in.
PAGE 3
HardiePlank® Lap Siding FASTENER REQUIREMENTS continued Stud Figure 14 24” O.C. max 24” O.C. max Stud Figure 15 Joint Flashing Minimum overlap for Both Face and Blind Nailing 1 1/4” min. Overlap Nail Line 3/4”-1” Blind Nail 1 1/4” min. Overlap min. 1 1/4 in. overlap Face Nail Water Resistive Barrier Water Resistive Barrier Laminate sheet to be removed immediately after installation of each course for ColorPlus® products. Pin-backed corners may be done for aesthetic purposes only.
PAGE 4
HardiePlank® Lap Siding COLORPLUS® TECHNOLOGY CAULKING, TOUCH-UP & LAMINATE • Care should be taken when handling and cutting James Hardie ColorPlus® products. During installation use a wet soft cloth or soft brush to gently wipe off any residue or construction dust left on the product, then rinse with a garden hose. • Touch up nicks, scrapes and nail heads using the ColorPlus® Technology touch-up applicator. Touch-up should be used sparingly.