MasterFormat: 95

Download this Specification for   WORD | WP | RTF | TEXT

Find over 500 more construction specifications | Arcat.com

	SECTION 06221
	CEDAR TRIM
	Copyright 2011 ARCAT, Inc. - All rights reserved
	** NOTE TO SPECIFIER ** Western Red Cedar Lumber Association, Cedar Trim. . This section is based on Publication 93-491 Revised December 2003, Specifying Cedar Trim, published by the Western Red Cedar Lumber Association (WRCLA), whose head office is at the following address. 1501-700 West Pender StreetPender Place 1, Business BuildingVancouver, British Columbia V6C 1G8Toll Free Tel: 1-866-778-9096Tel: (604) 684-0266Fax: (604) 687-4930E-mail: wrcla@wrcla.orgWebsite: www.wrcla.org . 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..
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Select paragraphs below applicable to project; add others as required.
		A.	Corner Boards.
		B.	Fascia and Rake Boards.
		C.	Skirting.
		D.	Window Trim.
		E.	Door Trim.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required.
		A.	Section 06100 - Rough Carpentry.
		B.	Section 06139 - Timber Construction.
		C.	Section 06151 - Cedar Decking.
		D.	Section 07462 - Cedar Siding.
	1.3	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.
		A.	Western Red Cedar Lumber Association "Designer's Handbook".
		B.	Western Red Cedar Lumber Association "Specifying Trim Boards"
		C.	Western Red Cedar Lumber Association "Installing Cedar Siding"
		D.	Western Red Cedar Lumber Association "Guide to Finishing Western Red Cedar"
		E.	NLGA - National Lumber Grades Authority "Grading Standards".
		F.	WCLIB - West Coast Lumber Inspection Bureau "Grading Standards".
		G.	WWPA - Western Wood Products Association "Grading Rules".
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		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.
		C.	Verification Samples: For each finish product specified, two samples representing actual product with finished color and texture.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: Manufacturer shall be a member of the Western Red Cedar Lumber Association capable of providing all Western Red Cedar trim materials specified in this section.
		B.	Installer Qualifications:
			1.	Installer shall have five (5) years experience installing cedar trim 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 Trim.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Inspect the materials upon delivery to assure that specified products have been received.
		B.	Store materials in safe area, away from construction traffic; store under cover and off ground, protected from moisture.
		C.	Keep materials clearly separated and identified with grade marks legible. Keep damaged material identified as damaged and stored separately.
	1.7	PROJECT CONDITIONS
		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.
	1.8	SUPPLEMENTAL MATERIALS
		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.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		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; Email: request info; Web: www.wrcla.org
	** NOTE TO SPECIFIER ** Delete 1 of the next 2 paragraphs; coordinate with Division 1 requirements.
		B.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
		C.	Substitutions: Not permitted.
	2.2	TRIM BOARDS
	** NOTE TO SPECIFIER ** Clear grades are specified when appearance of the highest quality is required. Clear Heart is the highest grade, including only pieces with heartwood on the exposed face. Consult "Specifying Trim Boards" for detailed information on cedar trim grading.
		A.	Clear Trim Boards: Western Red Cedar graded to meet NLGA "Grading Standards" paragraph 200, and WCLIB "Grading Standards," paragraph 102.
	** NOTE TO SPECIFIER ** Select grade(s) and surface texture(s) of Western Red Cedar trim boards graded as finish lumber from paragraphs below, as required for project. Delete paragraphs not required for project.
			1.	Grade: Clear Heart.
			2.	Grade: A Clear.
			3.	Grade: A Clear and Better.
			4.	Grade: A Clear and Better with a percentage of B Clear allowed.
				a.	B Clear allowed: __________ percent.
			5.	Grade: C Clear & Better
			6.	Grade: D Clear & Better
	** NOTE TO SPECIFIER ** Select Surface. Delete one of the following two paragraphs.
			7.	Surface: Rough sawn.
			8.	Surface: Surfaced one side and two edges (S1S2E).
			9.	Surface: Surfaced four sides (S4S)
	** NOTE TO SPECIFIER ** Clear Cedar Board-and-Batten Siding only available kiln-dried.
			10.	Moisture Content: Kiln-dried.
			11.	Moisture Content: Green (unseasoned).
			12.	Finish: Factory primed
			13.	Finish: Factory finished.
		B.	Knotty Board-and-Batten Cedar Trim Boards: Western Red Cedar graded to meet NLGA "Grading Standards," paragraph 204 and WCLIB "Grading Standards," paragraph 111.
	** NOTE TO SPECIFIER ** Cross cutting may be required on some pieces to yield tight knotted siding.
			1.	Grade: Select Knotty.
			2.	Grade: Select Knotty with a percentage of Quality Knotty allowed.
				a.	Quality Knotty allowed: __________ percent.
	** NOTE TO SPECIFIER ** Select Surface. Delete one of the following two paragraphs.
			3.	Surface: Rough sawn.
			4.	Surface: Surfaced one side and two edges (S1S2E).
			5.	Surface: Surfaced four sides (S4S)
	** NOTE TO SPECIFIER ** Select Moisture Content. Delete one of the following two paragraphs.
			6.	Moisture Content: Kiln-dried.
			7.	Moisture Content: Green (unseasoned).
			8.	Finish: Factory primed
			9.	Finish: Factory finished.
	** NOTE TO SPECIFIER ** Only Hot-dipped galvanized, aluminum, and stainless steel fasteners should be used to fasten Western Red Cedar Trim. 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.
	2.3	FASTENERS
	** NOTE TO SPECIFIER ** Select Nail types required for the project, or delete if nails are not required.
		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
	** NOTE TO SPECIFIER ** Delete the following article if no finish or stain is specified.
	2.4	PROTECTING FINISH
		A.	Water repellant, fungus and mildew resistant penetrating stain that is resistant to Ultra Violet (UV) light. For solid colors, an alkyd oil primer is recommended. Top coats should be 100% Acrylic Latex.
	** NOTE TO SPECIFIER ** Select finish color required. Delete one of the following two paragraphs
			1.	Color: Translucent.
			2.	Color: ______________ manufactured by ___________________.
		B.	Follow guidelines of the Western Red Cedar Lumber Association.
		C.	Adhere to coating manufacturer's instructions.
	** NOTE TO SPECIFIER ** Select finish color required. Delete one of the following two paragraphs
			1.	Color: Translucent.
			2.	Color: ______________ manufactured by ___________________.
	PART 3	EXECUTION
	3.1	PREPARATION
		A.	Coordinate work with related trades; scribe and cope trim boards for accurate fit. Allow installation of related work to avoid cutting and patching.
		B.	Discard boards that are warped, twisted, bowed, crooked or otherwise defective.
	3.2	INSTALLATION
		A.	Installation will vary based on the project, follow all appropriate building codes and industry best practices.
		B.	Finish materials on all sides and ends. Apply touch up coating on new cuts. Factory primed or finishing is preferred.
	3.3	ADJUSTING AND CLEANING
		A.	As work proceeds, maintain premises free of unnecessary accumulation of tools, equipment, surplus materials, and debris related to this work.
	3.4	MAINTENANCE
		A.	Explain proper maintenance procedures to owner or owner's representative at project closeout.
		B.	Visually inspect finish condition. Re-apply coating as necessary.
		C.	The use of pressure washers is not recommended.
	END OF SECTION