07_46_46_FIBER-CEMENT_SIDING_R1_20250818_0005.pdf

Replace the Chisos Mountains Lodge and Lodge Component Rehabilitate the Chisos Basin Water System

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Revision 1 08/18/2025 FIBER-CEMENT SIDING

SECTION 07 46 46 – FIBER-CEMENT SIDING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Fiber-cement siding, trim, and panel board.

B. Related Sections:

1. Section 07 21 00 – Building Insulation: Mineral wool insulation.

2. Section 07 27 26 – Fluid-Applied Membrane Air Barrier: Vapor permeable water resistive barrier.

3. Section 07 60 00 - Flashing and Sheet Metal: Flashing and other sheet metal work.

4. Section 07 92 00 - Joint Sealants.

1.3 LEED REQUIREMENTS

A. Refer to Section 01 81 13 for LEED requirements related to this Section.

1.4 SYSTEM DESCRIPTION

A. Fiber Cement Cladding Rainscreen:

1. Fiber cement siding.

2. Perforated hat channels.

3. Rigid mineral wool insulation. See Section 07 21 00.

4. Vapor permeable water resistive barrier. See Section 07 27 26.

1.5 SEQUENCING

A. Coordinate installation with flashings and other adjoining construction to ensure proper sequencing.

1.6 ACTION SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product. Indicate component materials, dimensions, profiles, textures, and colors and include construction and application details.

B. Samples for Verification: For each type, color, texture, and pattern required.

1. 12-inch- (300-mm-) long-by-actual-width sample of siding.

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C. Delegated-Design Submittal: Show compliance with performance criteria and applicable loads. Include calculations for subframing and cladding, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

D. LEED Submittals: See Section 01 81 13 requirements. Complete the LEED v4 Materials Reporting Form with all materials provided to the project. A complete submittal includes providing all material costs in the Reporting Form and all of the supporting documentation for the following credits:

1. MRc2, Building Product Disclosure and Optimization – Environmental Product

Declarations, Option 1, Environmental Product Declarations (EPD’s), Provide:

a. Material Cost

b. Provide Manufacturers Life Cycle Analysis conforming to ISO 14044, Industry-wide (generic) EPD with third-party Type III certification, or Product-specific Type III EPD.

2. MRc4, Building Product Disclosure and Optimization – Material Ingredients, Provide:

a. Material cost.

b. Manufacturer Inventory.

c. Health Product Declarations (HPDs).

d. Cradle to Cradle (C2C) certifications.

e. DECLARE product labels.

f. Publicly available inventory of all ingredients identified by Chemical Abstract

Service Registration Number (CASRN).

1.7 INFORMATIONAL SUBMITTALS

A. Warranty: Sample of special warranty.

1.8 CLOSEOUT SUBMITTALS

A. Warranty: Executed special warranty specified in this Section.

1.9 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Furnish full lengths of siding in a quantity equal to 2 percent of amount installed.

1.10 QUALITY ASSURANCE

A. Labeling: Provide fiber-cement siding that is tested and labeled according to ASTM C1186 by a qualified testing agency acceptable to authorities having jurisdiction.

B. Source Limitations for Cementitious Panels: Obtain each type, color, texture, and pattern of cementitious panel, including related accessories, through one source from a single manufacturer.

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1.11 PRE-INSTALLATION CONFERENCE

A. Convene one week prior to commencing work of this section. Conference shall be attended by Contractor, Owner, Contracting Officer, siding subcontractor and his foreman, and a representative of siding materials manufacturer.

B. Agenda shall include, but not be limited to the following:

1. Review of preparation and installation procedures.

2. Siding and flashing details including conflicts with manufacturer's specifications.

3. Coordination of flashing details at juncture with existing openings.

4. Establishment of schedules and work methods which will prevent damage to adjacent existing construction designated to remain.

5. Designation of area on job site to be used as work and storage location.

6. Establishment of weather and working conditions to which all parties agree.

7. Establishment of requirements pertaining to temporary protection of exterior wall substrates which have been prepared for and are awaiting application of siding.

8. Other business relating to Work.

1.12 DELIVERY, STORAGE, AND HANDLING

A. Store materials in a dry, well-ventilated, weathertight place.

1.13 SITE CONDITIONS

A. Weather Limitations: Proceed with siding installation only if substrate is completely dry and if existing and forecasted weather conditions permit siding to be installed according to manufacturer's written instructions.

1.14 WARRANTY

A. Special Warranty: Manufacturer's non-prorated form in which manufacturer agrees to repair or replace components of siding, soffit and trim products that do not comply with requirements or that fail in materials, fabrication, or installation within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Deterioration of siding materials, finishes, and other materials beyond normal weathering.

b. Adhesive or cohesive sealant failures.

c. Water leakage through siding system.

2. Warranty Period: 30-years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 FIBER-CEMENT SIDING

A. General: ASTM C1186, Type A, Grade II, fiber-cement board, noncombustible when tested according to ASTM E136; with a flame-spread index of 25 or less when tested according to

ASTM E84.

1. Lodge Building

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a. Basis of Design: James Hardie Inc.:

1) Horizontal Siding: Hardie Artisan Siding, Lap Siding.

2) Panel Siding: Hardie Panel, 5/16” thick.

3) Soffits: Hardie Soffit, non-vented, 1 /4” thick.

4) Trim: Hardie Trim, sizes as shown on drawings.

b. Horizontal Pattern at Lap Siding: 7-inch exposure.

c. Lap Siding Thickness: 5/8-inch.

d. Lap Siding Length: 12-feet.

e. Factory Priming: Manufacturer's standard acrylic primer.

f. Texture: Smooth.

g. Finish and Color: Painted. See Section 09 91 00.

2. Visitor Contact Station

a. Basis of Design: James Hardie Inc.:

1) Panel Siding: Hardie Panel

2) Soffits: Hardie Soffit, non-vented, 1 /4” thick.

3) Trim: Hardie Trim and Batten Boards, sizes as shown on drawings.

b. Siding Thickness: 5/16-inch.

c. Factory Priming: Manufacturer's standard acrylic primer.

d. Texture: Smooth.

e. Finish and Color: Painted. See Section 09 91 00.

2.2 ACCESSORIES

A. Fiber-Cement Siding Accessories: Provide starter strips, edge trim, battens, corner cap, and other items as recommended by siding manufacturer for building configuration.

1. Provide accessories made from same material as adjacent siding, unless otherwise indicated.

2. Provide accessories matching color and texture of adjacent siding, unless otherwise indicated.

B. Hat Channels:

1. Basis of Design: ClarkDietrich Building Systems; ProChannel Ci Cladding Support with Grip-Deck TubeSeal.

2. Minimum Base Metal Thickness: 16-gauge.

3. Depth: 1/2-inch.

4. Galvanized: ASTM A653/A653M, G180 galvanized perforated channels.

5. Fasteners: Supply fasteners of sufficient length and strength to span the space between hat channels and sufficiently penetrate substrate.

C. Elastomeric Joint Sealant: Single-component urethane joint sealant complying with requirements in Section 07 92 00 for Use NT (nontraffic) and for Uses M, G, A, and, as applicable to joint substrates indicated, O joint substrates.

D. Fasteners:

1. For fastening to wood, use siding nails ribbed bugle-head screws of sufficient length to penetrate a minimum of 1 inch (25 mm) into substrate.

2. For fastening fiber-cement siding, use hot-dip galvanized or stainless-steel fasteners.

E. Insect Barrier: At bottom of wall.

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1. Basis of Design Manufacturer: Cor-A-Vent; SV-3 Siding Vent with Insect Screen.

a. Net Free Area: 5 sq. in. per linear foot.

b. Dimension: 7/16-inches wide by 48-inchs long by 3-inches high.

c. Color: Black.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates for compliance with requirements for installation tolerances and other conditions affecting performance of siding. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Clean substrates of projections and substances detrimental to application.

B. Confirm underlayment is fully installed, tested and ready to receive the work of this Section.

3.3 INSTALLATION

A. General: Comply with siding manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply. Overlap joints to shed water away from direction of prevailing wind.

3.4 PREPARATION

A. Clean substrates of projections and substances detrimental to application.

3.5 INSTALLATION

A. Installation Method: Rainscreen. 7/8” galvanized furring channels installed vertically at 16”

oc. See details on Drawings.

B. General: Comply with siding manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

1. See James Hardie HZ-10 Best Practices-Installation Guide for Siding and Trim

Products, December 2019.

C. Pre-drill nail holes if required to prevent breakage. Use a masonry bit when drilling fiber cement products.

D. Touch-up all field cut edges before installing.

E. Allow space between both ends of siding panels that butt against trim for thermal movement;

seal joint between panel and trim with exterior grade sealant.

F. Joints in Horizontal Siding: Avoid joints in lap siding except at corners; where joints are required, stagger between successive courses. Overlap joints to shed water away from direction of prevailing wind.

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G. Install sheet metal flashing above door and window casings and horizontal trim in field of siding as indicated on Drawings.

H. Fastener Requirements: Position fasteners 1-inch from top of the plank for lap siding, 3/8" minimum from panel edges and no closer than 2" away from corners. Do not nail into corners.

Blind nail, typical.

1. When attaching lap siding products to metal furring, the steel furring must be a minimum 20-gauge steel. Nails (pins) must penetrate steel furring 1/4" minimum and screws by three full threads minimum.

I. Joint Treatment: Follow manufacturer’s written instructions.

1. Butt Joints in Horizontal Siding: Avoid butt joints in lap siding where possible; where joints are inevitable, stagger joints between successive courses. Follow manufacturer’s installation instructions for treatment of butt joints. Ensure butt joints always land over a stud.

2. Joint flashing is required behind all butt joints, typical. Extend 1" onto the lap siding course below, typical.

3. A 1/4-inch minimum clearance must be maintained between fiber cement siding and trim products and any horizontal flashing.

J. Do not install siding less than 6-inches (150 mm) from surface of ground nor closer than 1 inch (25 mm) to roofs, patios, porches, and other surfaces where water may collect.

K. After installation, seal joints in accordance with manufacturer’s installation instructions. Seal around all penetrations. Paint all exposed cut edges.

3.6 ADJUSTING

A. Remove damaged, improperly installed, or otherwise defective siding materials and replace with new materials complying with specified requirements.

B. Leave installed siding in clean condition, ready to receive paint finish.

3.7 CLEANING

A. Construction Waste Management: Manage construction waste in accordance with provisions of Section 01 74 19 Construction Waste Management and Disposal. Submit documentation for Credit MRp2/MRc5 to satisfy the requirements of that Section.

END OF SECTION 07 46 46