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| | SECTION 06151 |
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| | CEDAR DECKING |
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| | PART 1 | Display hidden notes to specifier by using "Tools"/"Options"/"View"/"Hidden Text". |
| | ** NOTE TO SPECIFIER ** Western Red Cedar Lumber Association, Cedar Decking
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This section is based on Publication 93-494 Revised March 2004, Specifying Cedar Decking, published by the Western Red Cedar Lumber Association (WRCLA), whose head office is at the following address: 700 1501-700 West Pender Street
Pender Place 1, Business Building
Vancouver, British Columbia V6C 1G8
Toll Free Te1: 1-866-778-9096
Tel: (604) 684-0266
Fax: (604)687-4930
E-mail: wrcla@wrcla.org
Website: www.wrcla.org
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The Western Red Cedar Lumber Association is an organization of Western Red Cedar producers, distributors and retailers throughout North America. Founded in 1954, the association is known worldwide as "the voice of the cedar industry". Its members account for more than 65 percent of the world's production of cedar and have an annual volume of nearly 1 billion board feet..
The mission of the WRCLA is to promote quality Western Red Cedar products and support them with a comprehensive marketing and PR program, technical services, education and training..The WRCLA works closely with architects, designers and builders to ensure the right product is specified and utilized for each project. The association offers extensive resources for including specification & installation guides and DVDs available in English, Spanish and Russian. The WRCLA has two education programs eligible for AIA Learning Credits. Its online architect training (www.cedar-training.org) course is eligible for 7 credit hours and the more informal group presentation offers 2 credit hours..The Association's RealCedar branding program promotes Western Red Cedar as the premier building material for naturally durable siding, decking and outdoor landscape features that will enhance the curb appeal of any home. The program is supported by extensive advertising, internet promotion (www.architect-gallery.org), trade show exhibits, point of purchase material, literature and sponsorships of high profile projects and architect Design Awards.. |
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| | PART 2 | GENERAL |
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| | 2.1 | SECTION INCLUDES |
| | ** NOTE TO SPECIFIER ** Select paragraphs below applicable to project; add others as required. |
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| | | A. | Cedar Decking. |
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| | | B. | Cedar Steps. |
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| | | C. | Cedar Seating. |
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| | | D. | Cedar Screens. |
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| | | E. | Cedar Trellises. |
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| | 2.2 | RELATED SECTIONS |
| | ** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required. |
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| | | A. | Section 06100 - Rough Carpentry. |
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| | | B. | Section 06139 - Timber Construction. |
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| | | C. | Section 06221 - Cedar Trim. |
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| | | D. | Section 07462 - Cedar Siding. |
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| | 2.3 | REFERENCES |
| | ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section; add others as required. |
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| | | A. | Western Red Cedar Lumber Association "Designer's Handbook". |
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| | | B. | Western Red Cedar Lumber Association "Specifying Western Red Cedar Decking" |
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| | | C. | Western Red Cedar Lumber Association "Guide to Finishing Western Red Cedar" |
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| | 2.4 | SUBMITTALS |
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| | | A. | Submit under provisions of Section 01300. |
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| | | B. | [ Product Data ]: Manufacturer's data sheets on each product to be used, including: |
| | | | 1. | Preparation instructions and recommendations. |
| | | | 2. | Storage and handling requirements and recommendations. |
| | | | 3. | Installation methods. |
| | ** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected. |
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| | | C. | Selection Samples: For each finished product specified, two complete sets of color chips representing manufacturer's full range of available materials and finished appearance. |
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| | | D. | Verification Samples: For each finish product specified, two samples, nominal size 5 1/2 inches (140 mm) square representing actual product with finished color and texture. |
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| | 2.5 | QUALITY ASSURANCE |
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| | | A. | Manufacturer Qualifications: Manufacturer shall be a member of the Western Red Cedar Lumber Association capable of providing all Cedar Decking materials specified in this section. |
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| | | B. | Installer Qualifications: |
| | | | 1. | Installer shall have five (5) years experience installing cedar decking on the type and size of project specified by this section. |
| | | | 2. | Installer shall be licensed, registered or otherwise approved by the local jurisdiction to install Cedar Decking. |
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| | | C. | Installation: Products shall be installed according to Western Red Cedar Lumber Association installation guidelines and adhere to local building codes. |
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| | 2.6 | DELIVERY, STORAGE, AND HANDLING |
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| | | A. | Inspect the materials upon delivery to assure that specified products have been received. |
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| | | B. | Store materials in safe area, away from construction traffic; store under cover and off ground, protected from moisture. |
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| | | C. | Keep materials clearly separated and identified with grade marks legible. Keep damaged material identified as damaged and stored separately. |
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| | 2.7 | PROJECT CONDITIONS |
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| | | A. | Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits. |
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| | 2.8 | SUPPLEMENTAL MATERIALS |
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| | | A. | Fasteners, supports, and hangers shall be provided by manufacturers other than member organizations of the WRCLA, and conform to the requirements set forth by this section. |
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| | PART 3 | PRODUCTS |
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| | 3.1 | MANUFACTURERS |
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| | | A. | Acceptable Manufacturer: Western Red Cedar Lumber Association, which is located at: 1501 - 700 W. Pender St. Pender Place 1, Business Bldg. ; Vancouver, BC, Canada V6C 1G8; Toll Free Tel: 866-778-9096; Tel: 604-684-0266; Fax: 604-687-4930; Email: request info; Web: www.wrcla.org |
| | ** NOTE TO SPECIFIER ** Delete 1 of the next 2 paragraphs; coordinate with Division 1 requirements. |
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| | | B. | Requests for substitutions will be considered in accordance with provisions of Section 01600. |
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| | | C. | Substitutions: Not permitted. |
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| | 3.2 | DECKING MATERIAL |
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| | | A. | Western Red Cedar Decking: Western Red Cedar Lumber Association decking grades. |
| | ** NOTE TO SPECIFIER ** Select grade(s) and moisture content of Western Red Cedar from paragraphs below as required for project. Delete references not required for project.
** NOTE TO SPECIFIER ** "Architect Clear" decking is specified when appearance of the highest quality is required; available seasoned or unseasoned. It has a fine grained heartwood appearance with all aspects of its manufacturing and quality control performed to the highest standards of the lumber industry. "Architect Clear" is a registered trademark of the Western Red Cedar Lumber Association. |
| | | | 1. | Grade: Architect Clear. |
| | ** NOTE TO SPECIFIER ** "Custom Clear" decking combines stability, durability, and a finely machined surface. It can be used directly on the job and is used for custom residences and other applications where fine woodwork is required. "Custom Clear" is a registered trademark of the Western Red Cedar Lumber Association. |
| | | | 2. | Grade: Custom Clear. |
| | ** NOTE TO SPECIFIER ** "Architect Knotty" decking provides a rustic appearance, with limited size of tight knots; available seasoned or unseasoned. The smooth, skip-free dressing over the entire face makes it a top choice where a knotty deck is desired. "Architect Knotty" is a registered trademark of the Western Red Cedar Lumber Association |
| | | | 3. | Grade: Architect Knotty. |
| | ** NOTE TO SPECIFIER ** "Custom Knotty" decking is widely used by homeowners and builders. Durable, hole-free knotty appearance and limited size and quality of characteristics; available unseasoned only. "Custom Knotty" is a registered trademark of the Western Red Cedar Lumber Association |
| | | | 4. | Grade: Custom Knotty. |
| | ** NOTE TO SPECIFIER ** Select moisture content. "Seasoned" is not available for Custom Knotty. |
| | | | 5. | Moisture Content: Green (unseasoned). |
| | | | 6. | Moisture Content: Seasoned. |
| | ** NOTE TO SPECIFIER ** Only Hot-dipped galvanized, aluminum, and stainless steel fasteners should be used to fasten Western Red Cedar decking. Stainless steel fasteners are preferred, hot-dipped galvanized is most widely used and economical. For most applications, No. 304 (18-8) grade stainless steel provides adequate corrosion resistance; for decks exposed to salt air, use No. 316 grade. Other types of fasteners, such as electro-plated, can rust, disintegrate and react adversely with the natural preservatives present in cedar, resulting in stains and streaks. |
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| | 3.3 | FASTENERS |
| | ** NOTE TO SPECIFIER ** Select Nail types required for the project, or delete if nails are not required. |
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| | | A. | Nails: |
| | | | 1. | Material: No. 304 stainless steel. |
| | | | 2. | Material: No. 316 stainless steel. |
| | | | 3. | Material: Hot-dipped galvanized. |
| | | | 4. | Material: Aluminum. |
| | ** NOTE TO SPECIFIER ** Select nail shank type. Delete two of the following three paragraphs. |
| | | | 5. | Shank: Plain. |
| | | | 6. | Shank: Spiral. |
| | | | 7. | Shank: Ringed. |
| | ** NOTE TO SPECIFIER ** Select nail length. Delete one of the following two paragraphs. |
| | | | 8. | Length: 8d - 2 1/2 inches (64mm) for decking with 1 1/4 inch (32mm) nominal thickness. |
| | | | 9. | Length: 10d - 3 inches (76mm) for decking with 2 inch (51mm) nominal thickness. |
| | ** NOTE TO SPECIFIER ** Select screw types required for the project, or delete if nails are not required. |
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| | | B. | Screws: |
| | | | 1. | Material: No. 304 stainless steel. |
| | | | 2. | Material: No. 316 stainless steel. |
| | | | 3. | Material: Double Hot-Dipped Galvanized. |
| | ** NOTE TO SPECIFIER ** Select screw length. Delete one of the following two paragraphs. |
| | | | 4. | Length: 2 1/2 inches (64mm) for decking with 1 1/4 inch (32mm) nominal thickness |
| | | | 5. | Length: 3 inches (76mm) for decking with 2 inch (51mm) nominal thickness. |
| | ** NOTE TO SPECIFIER ** Blind fastening systems create a fastener-free deck surface using metal clips and/or brackets that fasten the deck boards to the joists so that no fasteners are visible. List blind fastening system manufacturer or delete if not required. |
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| | | C. | Blind Fastening System: _________________________. |
| | ** NOTE TO SPECIFIER ** Delete the following article if no finish or stain is specified. |
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| | 3.4 | PROTECTING FINISH |
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| | | A. | Water repellant, fungus and mildew resistant penetrating stain that is resistant to Ultra Violet (UV) light. |
| | ** NOTE TO SPECIFIER ** Select finish color required. Delete one of the following two paragraphs |
| | | | 1. | Color: Translucent. |
| | | | 2. | Color:______________ manufactured by ___________________. |
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| | | B. | Follow guidelines of the Western Red Cedar Lumber Association. |
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| | | C. | Adhere to coating manufacturer's instructions. |
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| | PART 4 | EXECUTION |
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| | 4.1 | PREPARATION |
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| | | A. | Coordinate work with related trades; scribe and cope decking for accurate fit. Allow installation of related work to avoid cutting and patching. |
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| | | B. | Select decking boards of longest possible lengths. Discard boards that are warped, twisted, bowed, crooked or otherwise defective. |
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| | 4.2 | INSTALLATION |
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| | | A. | Install decking square, plumb, and level, evenly fitted and securely fastened. |
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| | | B. | Space decking planks 1/8 inch (3mm) apart to allow for adequate drainage and expansion. |
| | ** NOTE TO SPECIFIER ** Include the following paragraph if decking is to be fastened with NAILS. Delete if other fastening methods are required. |
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| | | C. | Fasten decking using appropriate length nails for the application. |
| | | | 1. | Use 3 inch (10d) nails to fasten decking with nominal thickness of 2 inches. Use 2-1/2 inch (8d) nails to fasten decking with nominal thickness of 1-1/4 inches (31.7 mm). Length may be reduced by 1/4 inch (6.3 mm) if ring or spiral shank nails are used. |
| | | | 2. | Use thin shanked nails with blunt points to prevent splitting. |
| | | | 3. | Provide one nail per joist for deck boards 2 inches (50 mm) wide, two nails per joist for deck boards 4 inches (100 mm) and wider. |
| | ** NOTE TO SPECIFIER ** Include the following paragraph if decking is to be fastened with SCREWS. Delete if other fastening methods are required. |
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| | | D. | Fasten deck with screws long enough to penetrate 1 inch (25 mm) into support members. Provide 1-1/2 inches (38 mm) penetration for structural components. |
| | ** NOTE TO SPECIFIER ** Include the following paragraph if decking is to be fastened with a BLIND FASTENING SYSTEM. Delete if other fastening methods are required. |
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| | | E. | Secure decking with blind fastening system following blind fastener manufacturer's instructions. |
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| | | F. | Follow installation instructions specified in the Western Red Cedar Lumber Association's Installing Cedar Siding publication and DVD. |
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| | | G. | Installation must comply with local building codes and regulations. |
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| | | H. | Finish materials on all sides and ends. Apply touch up coating on new cuts. Factory finishing is preferred. |
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| | 4.3 | ADJUSTING AND CLEANING |
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| | | A. | As work proceeds, maintain premises free of unnecessary accumulation of tools, equipment, surplus materials, and debris related to this work. |
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| | 4.4 | MAINTENANCE |
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| | | A. | Explain proper maintenance procedures to owner or owner's representative at project closeout. |
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| | | B. | Move planters, benches and other deck accessories periodically to allow the deck beneath to thoroughly dry. |
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| | | C. | Inspect decking annually for loose fasteners and finish condition. Re-apply coating as necessary. |
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| | | D. | The use of pressure washers is not recommended. |
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| | END OF SECTION |