MasterFormat: 95

Download this Exterior Finish Carpentry Specification for   WORD | WP | RTF | TEXT

Find over 500 more construction specifications | Arcat.com

	SECTION 06201
	EXTERIOR FINISH CARPENTRY
	Copyright 2009 - 2011 ARCAT, Inc. - All rights reserved
	** NOTE TO SPECIFIER ** LifeSpan by Fletcher; Fascia, trim boards, beaded paneling, exterior mouldings, siding.
	This section is based on the products of LifeSpan by Fletcher, which is located at:
	200 Westgate Circle, Suite 402 Annapolis, MD 21401 Toll Free: 866-FSC-WOOD
	Phone: 443-433-3333 Ext. 199
	Fax: 443-433-3334
	Email: JDeHart@fwsdirect.com
	Web: www.fletcherwoodsolutions.com
	LifeSpan by Fletcher, headquartered in Annapolis, MD, is a part of the Tenon Limited group of companies. It operates pine-manufacturing facilities in Taupo, New Zealand and is the largest manufacturer of defect-free, appearance grade radiata pine products in New Zealand. LifeSpan by Fletcher distributes its clear boards, mouldings, LIFESPAN treated wood, and lumber to the North American market through its proven and completely integrated supply chain. It's procurement activities enable the end-user to access a variety of complementary products. In addition, LifeSpan by Fletcher maintains direct access to one of the largest FSC certified pine plantation forests in the world, and its manufacturing plants have been certified by the Forest Stewardship Council. LifeSpan by Fletcher maintains two FSC certifications (FSC SCS-COC-00198 & FSC SCS-COC-00199), one for the mouldings plant, and another for the sawmill and boards plants, which also includes our fingerjointed and primed products. LifeSpan by Fletcher exhibits excellence throughout our business, from manufacturing to distribution to marketing.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Durable FSC-Certified Wood Products for the following applications:
			1.	Trim boards.
			2.	Fascia.
			3.	Beaded paneling.
			4.	Exterior mouldings.
			5.	Siding.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required. Include only sections needed to clarify responsibility for work which might be unclear otherwise.
		A.	Section 06100 - Rough Carpentry.
		B.	Section 06200 - Finish Carpentry.
		C.	Section 07460 - Wood Siding.
		D.	Section 09900 - Painting.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	Forest Stewardship Council (FSC) - Certification that the products are made of wood from forests that meet stringent environmental, social, and economic standards.
		B.	LifeSpan by Fletcher - LIFESPAN Technical Manual
		C.	LifeSpan by Fletcher - LIFESPAN Material Safety Data Sheet
		D.	USDA, Forest Products Laboratory - Exterior Wood in the South - Selection, Applications and Finishes
	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.	Manufacturer's specifications and installation instructions.
			2.	Preparation instructions and recommendations.
			3.	Storage and handling requirements and recommendations.
		C.	FSC Certification: Submit manufacturer's certification that products comply with Forest Stewardship Council Guidelines for FSC Certification; include certification numbers.
		D.	USGBC LEED Credits: Documentation for Materials and Resources Credit MR 7: Submit a list of items claimed as FSC certified, including product type, manufacturer, and the appropriate entity's COC certification number.
	1.5	QUALITY ASSURANCE
		A.	Installer Qualifications: Installer Qualifications: Minimum two years experience in installation of exterior woodwork of the type specified.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Inspect the materials on delivery to assure specified products have been received. Store products in dry location, not directly on the ground, preferably on bearers protected with a waterproof cover. Allow air circulation from beneath to allow the product to acclimatize.
	1.7	PROJECT CONDITIONS
		A.	Anticipate environmental conditions (temperature, humidity) and install materials within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
	1.8	WARRANTY
	**NOTE TO SPECIFIER** LIFESPAN products are suitable for interior and all exterior above ground use classes (American Wood Preservatives Association UC3A and UC3B). The 30-year limited warranty against fungal decay and insects is null and void if the LIFESPAN product is used in contact with the ground, is used within 6 inches of the ground, or is used in conditions of prolonged water entrapment. LIFESPAN products are not designed for and should not be used in structural (load bearing) situations. Any alteration of the shape or size of the product by machining (other than as a result of sawing to length or notching as required for fitting or joining) will void the 30-year warranty.
		A.	Warranty: Provide manufacturer's standard 30-year limited warranty for protection against fungal decay and insect attack.
			1.	Where any LIFESPAN product used in the appropriate application becomes structurally or functionally unserviceable within 30 years of purchase due to fungal decay or insect attack, then replacement of the material will be provided by the manufacturer. This Warranty is limited to the original consumer purchaser or "first owners." The manufacturer's liability under this Warranty is limited to the replacement cost of the defective LIFESPAN product only. It does not include any other costs including freight, labor costs, finishing costs, consequential damages, incidental damages, or special damages arising directly or indirectly from the LIFESPAN product, however caused.
			2.	To be covered under the 30-year Warranty, the "first owner" must be the recorded or documented owner of the property at the time or within 12 months of the time the LIFESPAN wood product is installed by the builder or contractor. In all other circumstances the 30-year LIFESPAN Warranty is not transferable to subsequent owners of the property.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: LifeSpan by Fletcher, which is located at: 200 Westgate Circle Suite 402 ; Annapolis, MD 21401; Toll Free Tel: 866-FSC-WOOD; Tel: 443-433-3333 ; Email: request info; Web: www.fletcherwoodsolutions.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	PRODUCTS
	** NOTE TO SPECIFIER ** Delete trimboards not required.
		A.	Trimboards: LIFESPAN as manufactured by LifeSpan by Fletcher.
			1.	Size:
				a.	Nominal Widths:
					1)	2 inches (51 mm).
					2)	3 inches (76 mm).
					3)	4 inches (102 mm).
					4)	5 inches (127 mm).
					5)	6 inches (152 mm).
					6)	8 inches (203 mm).
					7)	10 inches (254 mm).
					8)	12 inches (305 mm).
				b.	Nominal Thicknesses:
					1)	1 inch; 3/4 inches actual (19 mm).
					2)	5/4 inches; 1-1/8 inches actual (28.5 mm).
					3)	2 inches; 1-7/16 inches actual (36.5 mm).
	** NOTE TO SPECIFIER ** Delete two of the following three paragraphs.
			2.	Finish: Surfaced all sides, eased edges (S4SEE).
			3.	Finish: One rough-sawn face (S1S2E).
			4.	Finish: Surfaced on all sides, square edges (S4S).
		B.	Beaded Paneling: LIFESPAN as manufactured by LifeSpan by Fletcher.
			1.	Sizes:
				a.	1 x6 inches.
				b.	5/4 x 4 inches.
			2.	Finish: Edge and Centre Bead
		C.	Exterior Mouldings: LIFESPAN as manufactured by LifeSpan by Fletcher.
			1.	Pattern: As selected by Architect from manufacturer's full range of pattern options.
		D.	Siding: LIFESPAN as manufactured by LifeSpan by Fletcher.
			1.	Pattern: As selected by Architect from manufacturer's full range of pattern options.
			2.	Sizes: As selected by Architect from manufacturer's full range of standard size options.
	2.3	MATERIALS
		A.	Factory Primed Pressure Treated Wood:
	**NOTE TO SPECIFIER** Radiata pine has naturally low shrinkage, which contributes to its stability. Compared to other North American softwoods, radiata pine has shrinkage comparable to ponderosa pine and lower than hemlock, loblolly pine and Douglas-fir.
			1.	Species: Radiata Pine.
			2.	Certification: FSC Certification.
			3.	Dimensional Stability: Finger-jointing acceptable.
	**NOTE TO SPECIFIER** Dimensional stability is a critical wood property for cladding, joinery and exterior millwork uses. One key element that contributes to the stability of wood products is the kiln drying process. LifeSpan by Fletcher' manufacturing process uses the latest in kilns and kiln technology to produce stable products. The use of final steaming to eliminate drying stresses is one example of this.
			4.	LIFESPAN Preservative System:
				a.	Pressure Treatment:
	**NOTE TO SPECIFIER** Unlike traditional dip treatments and newer spray-on treatments that only reach outside surfaces, LIFESPAN is pressure treated, ensuring that the organic biocide penetrates and protects the entire sapwood substrate with precise quantities of preservative. This process avoids the surface roughness and grain-raising often associated with water-borne preservatives. During pressure treatment, the wood is also impregnated with waxes and resins, which bond with the wood. These resist moisture uptake, enhancing LIFESPAN's dimensional stability even when exposed to harsh environments of high humidity and precipitation. LIFESPAN products show improved stability over untreated products.
					1)	Use pressure treatment process to ensure the entire sapwood substrate is protected.
					2)	After treatment, allow solvents to evaporate sufficiently to permit subsequent priming, packaging and shipping.
				b.	Preservative Treatment:
					1)	Use a carbon-based biocide preservative system containing three active ingredients: propiconazole, tebuconazole, and permethrin to protect against fungal decay and insect attack with a 30-year limited warranty.
					2)	Retention levels to be an average of 0.08%m/m total azoles (0.06%m/m minimum) as fungicide and 0.02%m/m permethrin.
					3)	Contains waxes and resins to significantly reduce uptake of liquid water and subsequent swelling of wood..
		B.	Surface Penetrating Primer: LIFESPAN's factory-applied two-coat alkyd primer to protects against water infiltration and weathering.
			1.	The first surface penetrating full primer coat shall create a high film build for water repellence and surface crack limitation.
	** NOTE TO SPECIFIER ** The primers used in LIFESPAN are supplied by PPG Industries.
			2.	The second primer coat shall act as an undercoat to finish coats, providing a smooth, even, defect-free surface, concealing fingerjoints.
			3.	Total dry film build to be 3 - 4 mils.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Verify that site conditions are acceptable for installation of exterior finish carpentry. Do not begin installation until substrates have been properly prepared.
		B.	Coordinate with responsible entity to perform corrective work on unsatisfactory conditions. Commencement of work by installer is acceptance of site conditions.
	3.2	PREPARATION
		A.	Comply with manufacturer's recommendations, including the following:
			1.	Allow products to adjust to ambient conditions before starting installation.
			2.	Do not install to green wood or crooked structural framing.
			3.	Do not install over rain soaked or buckled materials.
			4.	Do not install if excessive moisture is present in the interior, including that from curing concrete and plaster.
			5.	Do not cut siding to fabricate trim; use trim components manufactured for the purpose.
		B.	Coordinate work with related trades; scribe and cope boards for accurate fit. Allow installation of related work to avoid cutting and patching.
		C.	Install materials in longest practical lengths. Discard materials that are warped, twisted, bowed, crooked or otherwise defective.
	3.3	INSTALLATION
		A.	Install in strict compliance with applicable regulations and manufacturer's recommendations including the following:
			1.	Application:
				a.	LIFESPAN products are suitable for interior and all exterior above ground use (American Wood Preservers Association UC3A Use Class)
				b.	Do not install LIFESPAN products in structural (load bearing) applications.
	**NOTE TO SPECIFIER** LIFESPAN is not intended for structural uses. Where impact adhesives are to be used or highly stressed glue joints are to be made (e.g. glue laminated beams), specific advice should be sought from LifeSpan by Fletcher.
				c.	The 30-year limited warranty against fungal decay and insects is null and void if used within 6" of the ground, or is us The 30-year limited warranty against fungal decay and insects is null and void if used within 6 inches (152 mm) of the ground, or is used in conditions of prolonged water entrapment. When installed abutting concrete e.g. as a door frame/jamb or column a 1/4 inch (6 mm) end gap should be left to allow any water to drain.
			2.	Nailing:
	**NOTE TO SPECIFIER** LIFESPAN products should be installed in accordance with the normal industry standards. Proper application and nailing practices are essential for maximizing the performance and appearance of LIFESPAN products. Hand nailing is recommended so that the factory primer seal will not be broken. If a nail gun is used, the precise adjustment of air pressure is necessary to achieve a flush finish. Alternatively, nails can be countersunk 1/16 inch (3 mm) and filled with putty to obtain a smooth surface. Pre-drilling near the ends is recommended to avoid any possibility of end splitting.
				a.	Do not nail through overlapping pieces of assembly containing LIFESPAN products to allow for normal seasonal wood movement.
				b.	Hot-dip galvanized fastenings are all that is required, but high tensile aluminum or stainless steel fasteners can also be used.
	**NOTE TO SPECIFIER** Unlike treatments that contain high levels of copper or other metals, the active ingredients in LIFESPAN do not promote the corrosion of nails and fastenings. To fasten LIFESPAN in exterior applications, hot dipped galvanized nails are all that is needed. High tensile aluminum or stainless steel fasteners are also suitable for use with LIFESPAN. To fasten in interior applications, LIFESPAN requires no specialty nails; simply fasten as you would with any other interior wood product.
				c.	Nail over studs. Total effective penetration into a solid wood base shall be at least 1-1/2 inch (38 mm).
				d.	Nailing patterns shall comply with industry practices (Exterior Wood in the South - Selection, Applications and Finishes. US Department of Agriculture. Forest Products Laboratory. General Technical Report, FPL-GTR-69).
			3.	Trimming, Cutting, and Sealing:
	**NOTE TO SPECIFIER** It is recommended to coat exposed end cuts and mitre joints with a good quality exterior wood primer before final painting. Delete if not required.
				a.	IMPORTANT - It is a requirement of the LIFESPAN 30-year warranty that For all cut surfaces, notches, and bored holes be liberally swabbed with a brush-on or spray-on wood preservative containing at least 15% zinc naphthenate or 9% copper napthenate.
	**NOTE TO SPECIFIER**. Any alteration of the shape or size of the product by machining (other than as a result of sawing to length or notching as required for fitting or joining) will void the 20-year warranty.
				b.	Do not alter shape or size of LIFESPAN product by machining, other than to saw to length or notching as required for fitting or joining.
			4.	Gluing:
				a.	Do not use wood glue containing casein. All other standard wood glues are acceptable.
			5.	Painting:
				a.	LIFESPAN products should be over coated within two months of first installation.
				b.	Fill all nail holes with an exterior filler as per manufacturer's directions. Note that some fillers do not require priming before use.
				c.	Remove surface contamination & wash with clean water.
				d.	If the primed timber has been exposed to the weather lightly sand to remove any chalking. Prime any bare timber rub through areas with a good quality primer.
				e.	Apply two coats of a premium brand acrylic topcoat as per label directions.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION