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Products Installation Guide_HardieSoffit pg. 66-77

Products Installation Guide_HardieSoffit pg. 66-77
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Products Installation Guide_HardieSoffit pg. 66-77

Product catalog summary
Product Description:
HardieSoffit® panels are fiber-cement panels used as soffit material under eaves, available in 8-ft. and 12-ft. lengths, 1/4-in. thick, with vented or non-vented options. Vented panels offer 5 sq. in. of ventilation per lineal foot. They come in smooth or Select Cedarmill© finishes and can be paired with HardieTrim® Fascia boards. ColorPlus® Technology provides a factory-applied finish.
Installation of HardieSoffit® Panels:
Attach panels to solid framing, such as 2x4 supports, spaced no more than 24 in. o.c. Install perpendicular to rafters or joists, ensuring all edges are supported. For rake overhangs, use 2x "look outs" spaced a maximum of 24 in. o.c. Joint treatments include moderate contact, gapped and caulked, batten strips, or H molding connectors.
Framing Preparation:
Straighten and trim rafter tails as necessary. Install solid wood sub-fascia or blocking between rafter tails. Add nailers for support if installing level soffits. Use galvanized nails for securing panels.
Special Considerations:
For hip roof soffits, join panels at corners with 45° angle cuts. Position vented sections towards the outside of the eave for optimal airflow.
Finishing Options:
Options include caulking, crown molding, or a 'J' channel. Insect screens can be added for protection, though they reduce vent area.
Safety and Handling:
James Hardie® products contain respirable crystalline silica. Use safety measures like ventilation, dust-reducing tools, and protective gear. Store panels flat, dry, and covered.
General Requirements:
Install over steel or wood framing, ensuring all edges are supported. Follow local building codes for water and air barriers. Do not use stain on products, and ensure proper flashing and gutter installation.
Specifications and Procedures:
  • Pneumatic Fastening: Recommended for James Hardie products. Adjust air pressure for snug fasteners.
  • Painting: Use 100% acrylic topcoats. Paint within 180 days for primed and 90 days for unprimed products.
  • Caulking: Use Elastomeric or Latex Joint Sealant as per ASTM standards.
Fastening Requirements:
Use corrosion-resistant fasteners. For wood frames, use 4d common nails spaced 8” o.c. For steel frames, use No. 8-18 x 0.323” screws spaced 6” o.c.
ColorPlus Technology:
Touch-up with ColorPlus Technology applicator. Replace large damaged areas. Remove laminate sheets immediately after installation.
Recognition and Compliance:
HardieSoffit panels are recognized in various building codes, including ICC-ES Legacy Report NER-405.
Kickout Flashing:
Install where roofs intersect sidewalls to deflect water. Use self-adhering membranes for additional protection.
Health and Safety:
Use safety measures to minimize exposure to respirable crystalline silica, including ventilation, dust masks, and HEPA vacuums.
General Installation Requirements:
Install over steel or wood framing, ensuring all edges are supported. Maintain a 1” gap between gutter end caps and siding. Store products flat, dry, and covered.
Specifications:
Use a circular saw with a HardieBlade saw blade for cutting. Ensure the blade carries the HardieBlade trademark.
Indoor Cutting Procedures:
  • Use score and snap, or shears for cutting.
  • Position the cutting station in a well-ventilated area.
  • Never use a power saw indoors.
  • Avoid dry sweeping; use wet suppression or a HEPA vacuum instead.
Recommendations:
  • Use "Best"-level cutting methods for maximum protection and minimal dust.
  • Consider NIOSH-approved respirators to reduce dust exposure.
  • Consult additional exposure information at www.jameshardie.com.
  • If concerns persist, consult a qualified industrial hygienist or contact James Hardie.
Storage & Handling Instructions:
Ensure compliance with building codes and James Hardie instructions to avoid issues. Confirm the correct HardieZone instructions before installation. Installing HZ10™ products outside an HZ10™ location voids the warranty. Determine the applicable HardieZone at www.hardiezone.com or call 1-866-942-7343.
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Catalog excerpts

Products Installation Guide_HardieSoffit pg. 66-77-1

66 HardieSoffit® Panel Products Description HARDIEsofit ® Panels HardieSoffit® panels are 8-ft. and 12-ft. long, 1/4-in. thick factory-primed fiber-cement panels designed to be used on the underside of eaves as soffit material. HardieSoffit panels are available as vented or non-vented boards. Vented HardieSoffit panels provide 5 sq. in. of net free ventilation per lineal foot of soffit. James Hardie offers HardieSoffit panels in a range of time-saving pre-cut widths common to rake and eave applications. HardieSoffit panels come in either a smooth finish or Select Cedarmill© textured finish. Check with your local dealer for product availability. HardieSoffit panels can be combined with HardieTrim® Fascia boards used for fascia rakes and frieze applications to complete the eaves detailing. HardieSoffit panels are also available with ColorPlus® Technology. The ColorPlus® coating is a factory-applied, ovenbaked finish available on a variety of James Hardie® siding and trim products. See your local dealer for details and availability of products, colors and accessories. HARDIEsofit ® Beaded Porch Panel HardieSoffit Beaded Porch Panel is a decorative fiber cement panel to be used as ceiling on the underside of porches or eaves as exterior panel materials. HardieSoffit beaded porch panel is 1/4-in. thick, 4 ft. wide, 8 ft. in length, and has 2” OC beads, and comes with PrimePlus® factory primer and sealer. Must be finished with 100% acrylic paint. See your local dealer for details and availability of products, colors and accessories. HardieSoffit Non-Vented – Smooth HardieSoffit Vented – Cedarmill© HardieSoffit Vented – Smooth HardieSoffit Beaded Porch Panel HardieSoffit Beaded Porch Panel HardieSoffit Non-Vented – Cedarmill© HardieSoffit Vented – Smooth HardieSoffit Non-Vented – Smooth General Product Information Working Safely Tools for Cutting and Fastening General Installation Requirements General Fastener Requirements Finishing and Maintenance HardieTrim® Boards/Battens HardieWrap® Weather Barrier HardieSoffit® Panels HardiePlank® Lap Siding HardieShingle® Siding HardiePanel® Vertical Siding Appendix/ Glossary NER -405 Legacy Report

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Products Installation Guide_HardieSoffit pg. 66-77-2

67 Installation of HardieSoffit® Panels Batten strip 1/8-in. gap with caulk Moderate contact H-Molding All edges of the soffit panels must be supported Blocking Subfascia Rafter Intermediate supports should be no more than 24 in. o.c Ledger Soffit panel installation of hardiesoffit® PANELS HardieSoffit® panels must be attached to solid framing such as 2x4 supports spaced no more than 24 in. o.c. For eaves install HardieSoffit panels with the long edge of the panel perpendicular to the ends of the rafters or joists. Eaves framing must include a subfascia, blocking, and/or ledger board to provide...

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Products Installation Guide_HardieSoffit pg. 66-77-3

68 Installation of HardieSoffit® Panels (continued) Snap chalk line across rafter tails Rafter tails Remove excess material. Sheathed wall Subfascia bridges the rafter tails Sheathed wall Rafter tails Blocking joins the rafter tails Sheathed wall Ledger Rafter tails Ledger Soffit Subfascia Ledger Rafter tails Sheathed wall Framing prep for soffit panels When installing the soffit: 1) Straighten the rafter tails by pulling and snapping a chalk line across the ends of the tails and then trimming them as necessary. 2) Install a solid wood sub-fascia on the ends of the rafter tails or install blocking...

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Products Installation Guide_HardieSoffit pg. 66-77-4

69 In addition to the frieze board treatments described above, there are several other options for finishing the juncture where the siding meets the soffit. CAulk the siding /sofit joint A fast and economical method of finishing the siding/soffit juncture is simply to run a bead of quality caulk along the top edge of the siding where it meets the soffit. A straight rip cut along Engineered for Climate™ Engineered for Climate™ Caulk joint between siding and frieze board. Siding butts to frieze boards Frieze installed over siding installing frieze boards FRIEZE MADE FROM HARDIETRIM® 5/4, 4/4 BOARDS...

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Products Installation Guide_HardieSoffit pg. 66-77-5

70 Installation of HardieSoffit® Beaded Porch Panels HardieSoffit Beaded Porch Panel must be attached to either steel or wood normal 2x4 framing members spaced a maximum 24 in on center. All edges must be supported by framing. There are several ways to treat the joints of HardieSoffit beaded porch panels. The panel edges can be butted in moderate contact, leave a gap and caulk; or joints can be covered with Hardietrim batten strips. TIP: Stainless steel fasteners are recommended when installing James Hardie products near the ocean, large bodies of water, or in very humid climates. TIP: Do not...

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Products Installation Guide_HardieSoffit pg. 66-77-6

71 Special precautions may be needed for carrying the panel during installation because of its larger size. James Hardie recommends the use of a T shape frame to support the panel during installation. A fast and economical method of finishing the siding/porch panel juncture is simply to run a bead of quality caulk along the top edge of the siding where it meets the soffit. A straight rip cut along the top edge of the siding ensures an aesthetically pleasing fit where it meets the beaded porch panel. handling during installation siding/beaded porch panel jo int Rafter Ledger Blocking Subfascia...

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Products Installation Guide_HardieSoffit pg. 66-77-7

72 3/8" from edge of soffit keep fasteners 2" away from corners 24” o.c. max. • HardieSoffit® panels may be installed over either steel or wood framing complying with the local building code. Install soffits to nominal 2 x 4 framing members spaced a maximum of 24 inches on center (fig.4), • All edges must be supported by framing. (figs. 3 & 4) • Install water barriers and air barriers as required by local building codes. James Hardie will assume no responsibility for moisture infiltration. • Ensure gutters have end caps. Maintain a minimum 1" gap between end caps and siding & trim (fig.5). •...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.