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	SECTION 07310
	ROOF SHINGLES AND SHAKES
	** NOTE TO SPECIFIER ** Green River; Roof Shingles and Shakes. . This section is based on the products of Green River, which is located at: PO Box 400. Winlock, WA 98596. Te1: 800-663-8707. Fax: 360-785-3076. Email: mark@clarkegroup.com. Web: www.greenrivershake.com. . Green River is a third generation, family owned group of shake and shingle product companies with operations in British Columbia, Washington, and Oregon..Originating in 1969, Green River thrived supplying cedar shakes and shingles for North American homes during the building boom of the 1970's. Responding to the changing demands of homeowners and builders in the 80's, we expanded to include companies specializing in logging, custom cutting, wood treating, re-manufacturing and distribution..Proudly, throughout our progress, we've retained our commitment to top quality products, preservation of the forest eco-system and personalized customer service..Today our family of building product companies markets quality building materials worldwide. Our mandate is to provide the stability and strength of a large network, combined with the grass roots focus of each individual company. This balance of synergy and autonomy enables Green River to create technological and economical advantages in all our lines, ensuring the very best products, services, consultation and value.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Wood Shingles.
		B.	Wood Shakes.
		C.	Materials Required for Steep Slope Roof Installation and Flashing.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 06100 - Rough Carpentry: Roof and wall framing and sheathing.
		B.	Section 07460 - Siding: Flashing conditions at adjacent siding locations.
		C.	Section 07620 - Sheet Metal Flashing and Trim: Headwall, sidewall (step), and valley flashing, drip edge, plumbing vent flashing and flashings for other roof accessories.
		D.	Section 07710 - Manufactured Roof Specialties: Gutters and downspouts.
		E.	Section 08600 - Skylights: Fixed or operable skylights and roof windows.
	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.	ASTM D 226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.
		B.	ASTM D 1970 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.
		C.	ASTM D 4869 - Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing.
		D.	ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
		E.	ASTM E 108 - Standard Test Methods for Fire Tests of Roof Coverings.
		F.	NRCA Steep Slope Roofing and Waterproofing Manual, Current Edition.
		G.	Underwriters Laboratories (UL) UL 790: Standard Test Methods for Fire Tests of Roof Coverings.
	1.4	PERFORMANCE REQUIREMENTS
		A.	Completed roof system must be capable of shedding water and resisting moisture penetration during wind driven rain.
	** NOTE TO SPECIFIER ** Delete the next paragraph if a fire rated roof system is not required.
		B.	Fire Rating: CedarPlus Fire Rated System
	** NOTE TO SPECIFIER ** Delete two of the next three paragraphs.
			1.	UL Class A as tested in accordance with UL 790.
			2.	UL Class B as tested in accordance with UL 790.
			3.	UL Class C as tested in accordance with UL 790.
	** NOTE TO SPECIFIER ** Delete the next paragraph if preservative treatment is not required. Treatment is recommended in high humidity regions.
		C.	CedarPlus CCA Preservative Treatment, .40 retention.
		D.	Wind Speed: Roof must be capable of withstanding straight-line non-tornadic winds up to 70 MPH (112 kmh) without loss or damage.
	** NOTE TO SPECIFIER ** Many jurisdictions use the standards set forth by Dade County, Florida to determine product acceptability in high wind and hurricane prone regions. Delete the next paragraph if hurricane performance is not required.
		E.	Miami-Dade Product Approval: Roof must be tested in accordance with and approved for installation in Dade County, Florida.
	1.5	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.
		C.	Detail Drawings: Submit detail drawings depicting the approved methods of installation at all flashing conditions located on the project. Coordinate flashing details with the contract drawings.
	** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
		D.	Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
		E.	Verification Samples: For each finish product specified, two shingles representing actual product, finish color, and texture.
	1.6	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: All primary products specified in this section will be supplied by a single manufacturer with a minimum of thirty (30) years experience.
		B.	Installer Qualifications: All products listed in this section are to be installed by a single installer with a minimum of five (5) years demonstrated experience in installing products of the same type and scope as specified.
	** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
		C.	Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
			1.	Finish areas designated by Architect.
			2.	Do not proceed with remaining work until workmanship and product are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
	1.7	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store and dispose of hazardous materials, and materials contaminated by hazardous materials, in accordance with requirements of local authorities having jurisdiction.
	1.8	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.
	1.9	WARRANTY
		A.	At project closeout, provide to Owner or Owners Representative an executed copy of the manufacturer's standard limited warranty against manufacturing defect, outlining its terms, conditions, and exclusions from coverage.
	** NOTE TO SPECIFIER ** Delete the next paragraph if materials are not left for the Owner at project closeout.
	1.10	EXTRA MATERIALS
		A.	At project closeout, provide additional roof shakes or shingles to Owner or Owners representative in the amount listed:
	** NOTE TO SPECIFIER ** Insert amount of Extra Shingles to be left Owner.
			1.	Coverage Area: _________ square feet.
			2.	Placement location: As noted on the Contract Drawings.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Green River , which is located at: P. O. Box 400 ; Winlock, WA 98596; Toll Free Tel: 800-663-8707; Fax: 360-785-3076; Email: request info; Web: www.greenrivershake.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.
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs or the entire next article if a UL Class A roof is not required.
	2.2	ROOF BOARD
		A.	Gypsum Sheathing: 1/4 inch (6mm) overlay board with a water-resistant and silicone treated gypsum core with glass fiber facers embedded on both sides. GP Dens-Deck Roof Board or approved equal.
		B.	Cap Sheet Underlayment: 72lb mineral surface cap sheet conforming to ASTM D 3909.
	** NOTE TO SPECIFIER ** Underlayment should be specified in snow climates, coastal areas where wind driven rain is prevalent or where the average daily temperature in January is 25 F (4 C) or less. Retain only underlayment required on the project, or delete the entire article if underlayment is not required.
	2.3	UNDERLAYMENT
		A.	Leak Barrier Membrane: Self-adhering bituminous membrane meeting or exceeding the requirements of ASTM D 1970.
		B.	Felt Underlayment:
	** NOTE TO SPECIFIER ** Select specified underlayment
			1.	15 Lb Organic asphalt saturated felt meeting or exceeding the requirements of ASTM D 226 or ASTM D 4869 Type I.
			2.	30 Lb Organic asphalt saturated felt meeting or exceeding the requirements of ASTM D 226 or ASTM D 4869 Type II.
		C.	Felt Interlayment:
	** NOTE TO SPECIFIER ** Interlayment is required on shake products. Interlayment is not recommended with shingle products
			1.	18-inch wide roofing felt, 30 Lb Organic asphalt saturated felt meeting or exceeding the requirements of ASTM D 226 or ASTM D 4869 Type II.
	2.4	SHAKES
		A.	Handsplit and Resawn Shakes:
	** NOTE TO SPECIFIER ** Select shake type. Delete one of the next two paragraphs.
			1.	Type: Black Hawk "Reserve" - Premium Grade; Clear heartwood, 100 percent edge grain, edge trimmed.
			2.	Type: Green River "Reserve": Number 1 Grade, edge trimmed, maximum 20 percent flat grain.
	** NOTE TO SPECIFIER ** Select shake length. Delete one of the next two paragraphs.
			3.	Length: 18 inches (457mm).
			4.	Length: 24 inches (610mm).
	** NOTE TO SPECIFIER ** Select shake thickness. Delete four of the next five paragraphs.
			5.	Thickness: 3/4 inch (19mm); Heavy.
			6.	Thickness: 7/8 inch (21mm), Heavy.
			7.	Thickness: 1 inch (25mm), Jumbos.
			8.	Thickness: 1 1/4 inch (32mm); Jumbos.
			9.	Thickness: 1 1/2 inch (38mm); Jumbos
	** NOTE TO SPECIFIER ** Select shake exposure. Delete one of the next two paragraphs. Shorter exposures may be specified.
			10.	Exposure: 10-inch (maximum allowed on 24-inch shakes).
			11.	Exposure: 7 1/2 inch (maximum allowed on 18-inch shakes).
		B.	Taper-Sawn Shakes:
	** NOTE TO SPECIFIER ** Select shake type. Delete one of the next two paragraphs.
			1.	Type: Black Hawk "Reserve" - Premium Grade; Clear heartwood, 100 percent edge grain.
			2.	Type: Green River "Reserve": Number 1 Grade Select; Select 2-pack, maximum 10 percent flat grain.
	** NOTE TO SPECIFIER ** Select shake length. Delete one of the next two paragraphs.
			3.	Length: 18 inches (457mm).
			4.	Length: 24 inches (610mm).
	** NOTE TO SPECIFIER ** Select shake thickness. Delete three of the next four paragraphs.
			5.	Thickness: 5/8 inch (15mm); Medium.
			6.	Thickness: 3/4 inch (19mm); Heavy.
			7.	Thickness: 1 inch (25mm); Jumbo.
			8.	Width: Variable from 4 inches (102mm) to 14 inches (356mm).
	** NOTE TO SPECIFIER ** Select shake exposure. Delete one of the next two paragraphs. Shorter exposures may be specified.
			9.	Exposure: 10 inch (maximum allowed on 24-inch shakes)
			10.	Exposure: 7 1/2 inch (maximum allowed on 18-inch shakes)
	2.5	SHINGLES
		A.	Green River "Reserve" Grade: Number 1; Clear heartwood, 100 percent edge grain.
	** NOTE TO SPECIFIER ** Select shingle length. Delete one of the next two paragraphs.
			1.	Length: 18 inches (457mm) Perfections.
			2.	Length: 24 inch (610mm) Royals.
	** NOTE TO SPECIFIER ** Select shingle thickness. 0.45 inch is for 18 inch shingles, 0.50 is for 24 inch shingles. Delete one of the next two paragraphs.
			3.	Thickness: 0.45 inch (11mm).
			4.	Thickness: 0.50 inch (13mm).
			5.	Width: Variable from 4 inches (102mm) to 14 inches (356mm).
	** NOTE TO SPECIFIER ** Select shingle exposure. Delete one of the next two paragraphs. Shorter exposures may be specified.
			6.	Exposure: 5 1/2 inch (maximum allowed on 18-inch Perfection shingles)
			7.	Exposure: 7 1/2 inch (maximum allowed on 24-inch Royal shingles)
	2.6	SHEET METAL
		A.	Material:
	** NOTE TO SPECIFIER ** Select flashing material. Delete three of the next four paragraphs.
			1.	Copper - Minimum 16 oz.
			2.	Material: Aluminum - Minimum 26 gauge.
			3.	Material: Galvanized Steel - Minimum 26 gauge.
			4.	Stainless Steel - Minimum 26 guage.
		B.	Fabrications:
	** NOTE TO SPECIFIER ** The following paragraphs represent common flashing conditions and with the corresponding NRCA and IBC requirements. Retain only those conditions present on the project, and add others not listed.
			1.	Valley Flashing: 24 inch (610mm) wide metal fabrication with a 1 inch (25mm) raised splash diverter at the flow line.
			2.	Step Flashing: 9 inch (228mm) wide metal fabrication with a 5 inch (127mm) leg up the wall and a 4 inch (102mm) leg under the shake. Length sufficient to provide a 4 inch (102mm) minimum headlap.
			3.	Headwall Flashing: 8 inch (203mm) wide metal fabrication with two 4 inch (102mm) legs.
			4.	Eaves and Rake Drip Edge: 8 inch (203mm) wide metal fabrication. Profile as noted in the Contract Drawings.
	** NOTE TO SPECIFIER ** Select plumbing vent flashing type. Delete one of the next two paragraphs.
			5.	Plumbing Vent Flashing: Molded flashing with a self sealing santoprene boot. Material to match field fabricated flashings.
			6.	Plumbing Vent Flashing: Soldered metal flashing formed to return into plumbing stack. Material to match field fabricated flashings.
	2.7	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Interior Paint.
		B.	Exterior Paint.
		C.	Wall Preparation.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
		C.	Roof pitch must not be less than 4 inches per foot or 4:12 (102mm : 305mm).
	3.2	SUBSTRATE PREPARATION
		A.	Clean surfaces thoroughly prior to installation.
		B.	Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
	** NOTE TO SPECIFIER ** Delete the next paragraph if underlayment is not required.
		C.	Install solid sheathing extending from all eaves to extend 36 inches (914mm) horizontally inside the warm edge of the exterior wall beneath.
	** NOTE TO SPECIFIER ** Delete the next article unless a UL Class A roof is required.
	3.3	ROOF BOARD
		A.	Follow roof board manufacturer's installation guidelines for achieving optimum results for the conditions present on the project.
		B.	Install roof board over existing substrate using a minimum of four (4) fasteners, limiting shifting and movement prior to roofing installation.
		C.	Where spaced sheathing is present, horizontal joints must land on the substrate beneath.
	** NOTE TO SPECIFIER ** Retain only underlayment applications required on this project and delete all others. Delete the entire next article if underlayment is not required.
	3.4	UNDERLAYMENT INSTALLATION
		A.	Install using methods recommended by manufacturer in accordance with local building code.
		B.	Eaves: Place eave edge metal flashing tight with fascia boards; lap joints 2 inches (50 mm) and nail at top of flange.
		C.	Valleys: Install leak barrier at least 36 inches wide centered on valley; lap ends 6 inches (150 mm) and seal.
		D.	Roof Deck:
			1.	Install one layer of roof deck underlayment over entire area not protected by eave or valley membrane.
			2.	Apply underlayment horizontally, lapping to shed water.
			3.	Lap edges no less than 2 inches (50 mm) horizontally and 4 inches (100 mm) vertically.
			4.	Stagger vertical joints at least 36 inches (915 mm).
		E.	Roof Penetrations:
			1.	At vent pipes, install a 24 inch (610 mm) square piece of leak barrier lapping over roof deck protection; seal tightly to pipe.
			2.	At vertical walls, install leak barrier extending at least 6 inches (150 mm) up the wall and 12 inches (305 mm) on to the roof surface lapping over roof deck protection.
			3.	At skylights and roof hatches, install leak barrier up the sides of the frame and 12 inches (305 mm) on to the roof surface on all sides, lapping over roof deck underlayment.
			4.	At chimneys, install leak barrier around entire chimney extending at least 6 inches (150 mm) up the wall and 12 inches (305 mm) on to the roof surface lapping over roof deck protection.
	3.5	ROOFING INSTALLATION
		A.	Starter Course: Install a starter course at the eaves to align and undercourse roof. Project shingle butts from 1 to 2 inches (51 - 76mm) beyond eaves.
		B.	Offset: Space roofing shakes or shingles 1/4 inch to 3/8 inch (6 - 10mm) apart to allow for possible expansion. Offset subsequent courses at least 1 1/2 inches (38mm).
		C.	Fastening: Install shakes or shingles with two (2) hot dipped zinc coated or stainless steel fasteners. Length must be sufficient to penetrate at least 3/4 inch into dimensional lumber or through plywood or OSB sheathing.
	** NOTE TO SPECIFIER ** Retain only flashing applications found on this project and delete all others.
	3.6	FLASHING
		A.	Eaves: Install eave edge metal flashing tight with fascia boards; lap joints 2 inches (50 mm) and nail at top of flange.
		B.	Valleys: Install metal valley flashing over leak barrier membrane prior to roofing installation. Do not nail into flashing; secure by nailing just beyond edge of flashing so that nail heads hold down edge every 18 inches (457 mm).
		C.	Headwalls: Install headwall flashing tight with wall extending 4 inches (102mm) onto the roof plane and 4 inches (102mm) up the headwall. Where possible, maintain continuous lengths of flashing. Counterflash with siding.
		D.	Sidewalls: Install step flashing at sidewalls on every course, extending 4 inches (102mm) onto the roof plane and 4 inches (102mm) up the sidewall. Overlap subsequent courses to provide a headlap of no less than 4 inches (102mm). Counterflash with siding.
		E.	Penetrations: Follow SMACNA guidelines for fabrication and installation of flashings at all roof penetrations.
	3.7	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION