Addendum 1 Attachment 1 - 07 46 23 - Wood Siding.pdf

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WOOD SIDING

PHASE 500 – 90% SUBMISSION 11793-00 February 10, 2023

SECTION 07 46 23 - WOOD SIDING

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Wood siding with boards for walls.

1.02 RELATED REQUIREMENTS

A. Section 07 62 00 - Sheet Metal Flashing and Trim: Product requirements for metal flashings and trim associated with wood siding for placement by this section.

B. Section 09 91 13 - Exterior Painting: Stain finish.

1.03 REFERENCE STANDARDS

A. APA PRP-108 - Performance Standards and Qualification Policy for Structural-Use Panels (Form E445); 2002.

B. ASCE 7 - Minimum Design Loads and Associated Criteria for Buildings and Other Structures;

Most Recent Edition Cited by Referring Code or Reference Standard.

C. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials;

2019b.

D. ASTM E119 - Standard Test Methods for Fire Tests of Building Construction and Materials;

2019.

E. AWPA U1 - Use Category System: User Specification for Treated Wood; 2018.

F. FBC TAS 201 - Impact Test Procedures; Testing Application Standard; 1994.

G. UL 723 - Standard for Test for Surface Burning Characteristics of Building Materials; Current

Edition, Including All Revisions.

1.04 SUBMITTALS

A. See Section 01 30 00 - Administrative Requirements for submittal procedures.

B. Product Data: Provide manufacturer's data on materials, component profiles, fastening methods, jointing details, sizes, surface texture, finishes, accessories, and _____; showing compliance with requirements, including:

1. Physical characteristics of components shown on shop drawings.

2. Storage and handling requirements and recommendations.

3. Installation instructions and recommendations.

C. Samples: Submit two samples 12 by 12 inches (305 by 305 mm) in size illustrating surface texture.

D. Samples: Submit two samples 12 by 12 inches (305 by 305 mm) in size to applicator of finish paint for use in preparation of finish samples.

E. Installer's qualification statement.

1.05 QUALITY ASSURANCE

A. Installer Qualifications: Company specializing in installing products of the type specified in this section with minimum three years of documented experience.

1.06 MOCK-UPS

A. See Section 01 40 00 - Quality Requirements for additional requirements.

B. Construct mock-up on project site incorporating required materials and workmanship, with minimum size of ___ feet (___ m) long by ___ feet (___ m) wide.

C. Locate where directed by Architect.

1.07 DELIVERY, STORAGE, AND HANDLING

A. Store in ventilated areas with constant minimum temperature of 60 degrees F (16 degrees C) and maximum relative humidity of 55 percent.

Newberry DNR CSC 07 46 23-2

PHASE 500 – 90% SUBMISSION 11793-00 February 10, 2023

1.08 FIELD CONDITIONS

A. Do not install siding when air temperature or relative humidity are outside manufacturer's limits.

1.09 WARRANTY

A. See Section 01 78 00 - Closeout Submittals for additional warranty requirements.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Wood Siding:

1. Centennial Woods LLC; _____: www.centennialwoods.com/#sle.

2. Thermory USA.

3. Substitutions: See Section 01 60 00 - Product Requirements.

2.02 PERFORMANCE REQUIREMENTS

A. Comply with local wind load resistance requirements of ASCE 7.

2.03 ENGINEERED WOOD SIDING MATERIALS

A. Structural Performance: Comply with APA PRP-108 performance standards for engineered wood siding and requirements of local authorities having jurisdiction (AHJ).

B. Fire Resistance: Provide testing by qualified testing agency in accordance with ASTM E119, and identify products with markings of applicable testing agency acceptable to authorities having jurisdiction (AHJ).

1. Surface Burning Characteristics: Flame spread index (FSI) of 200 or less, Class C, and smoke development index (SDI) of 450 or less in accordance with ASTM E84 and UL 723.

C. Thermal Movement: Allow space for thermal movement at ends of wall siding that butt against trim; seal joint between siding and trim.

D. Treatment of Engineered Wood Siding: Treated with exterior grade adhesive resins, water-resistant waxes and zinc borate, and bonded with water-resistant, resin-saturated overlay that provides protection against water damage, termites, and fungal decay.

2.04 ACCESSORIES

A. Preservative Treatment: Dip or brush type, nondiscoloring.

B. Wood Sealer: Factory-applied, water-based polymer, water repellant sealer that reacts chemically with untreated, natural wood surfaces.

1. Products:

a. Centennial Woods LLC; Centennial-Seal: www.centennialwoods.com/#sle.

b. Thermory USA.

c. Substitutions: See Section 01 60 00 - Product Requirements.

C. Nails: Corrosion resistant type; nonstaining, of size and strength to securely and rigidly retain the work; prefinished to match siding finish.

D. Flashing: Galvanized steel; see Section 07 62 00.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that substrates are ready to receive work.

B. Do not begin until unacceptable conditions have been corrected.

C. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.02 PREPARATION

A. Protect surrounding areas and adjacent surfaces during execution of this work.

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PHASE 500 – 90% SUBMISSION 11793-00 February 10, 2023

B. Apply preservative treatment in accordance with manufacturer's instructions.

1. Verify materials do not exceed specified percent moisture content before applying wood preservative treatment.

2. Brush apply one coat of preservative treatment.

C. Do not install materials until site prefinishing and back priming is complete and dry.

3.03 INSTALLATION

A. Install siding and trim in accordance with manufacturer's instructions.

B. Fasten siding securely in place, level and plumb.

1. Arrange for orderly nailing pattern, blind nail except over trim.

2. Install siding for natural shed of water.

3. Position cut ends over bearing surfaces, and sand cut edges smooth and clean.

C. Install wood siding vertically with edges and ends over firm bearing.

1. Ship lap edges and ends.

2. Nail at 12 inches (305 mm) on center.

3. Miter external and internal corners.

D. Install corner strips, closures, trim, and battens.

E. Seal exposed wood substrates exposed to weather to prevent water accumulation and moisture intrusion.

1. Seal penetrations.

2. Seal exposed cuts of siding and trim; use of field-applied coatings is not permitted.

F. Install metal flashings at internal and external corners, sills, heads of wall openings, and horizontal joints of sheet materials.

G. Touch-up, repair, or replace wood siding materials having damaged factory-applied finish; notify Architect of damaged materials, and confirm acceptable process before completion of this work.

H. Sand work smooth and set exposed nails and screws.

I. Prepare for site finishing; see Section 09 91 13.

3.04 CLEANING

A. See Section 01 70 00 - Execution and Closeout Requirements for additional requirements.

B. Clean exposed work upon completion of installation; remove grease and oil films, excess joint sealer, handling marks, and debris from installation, leaving work clean and unmarked, free from dents, creases, waves, scratch marks, or other damage to finish.

3.05 PROTECTION

A. Protect installed products until completion of project.

B. Touch-up, repair, or replace damaged products before Date of Substantial Completion.

END OF SECTION