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	SECTION 04730
	MANUFACTURED STONE VENEER
	Copyright 2007 - 2011 ARCAT, Inc. - All rights reserved
	** NOTE TO SPECIFIER ** StoneCraft - Offered by Tapco; manufactured stone veneer products. . This section is based on the products of StoneCraft - Offered by Tapco, which is located at: 29797 Beck Rd. Wixom, MI 48393 Toll Free Tel: 888-580-6448 Email: request info Web: www.stonecraft.com [ Click Here ] for additional information. At StoneCraft we're passionate about stone - its inherent beauty and limitless potential. That passion translates into quality manufactured stone that we're delighted to offer at extremely affordable prices. Stone - as a building material it's simply unequaled in its ability to add warmth, depth and character to any design. With StoneCraft's rare blend of quality and affordability, you can now bring the extraordinary texture, color and character of stone to more of your designs. With strategic alliances and a manufacturing capability that exceeds other suppliers, StoneCraft can produce the quality and quantity you desire. We're confident that, very quickly, StoneCraft will become your preferred choice for affordable manufactured stone.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Manufactured Stone Veneer.
		B.	Special decorative veneer stone shapes for trim.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 03300 - Cast-In-Place Concrete: Concrete supporting wall.
		B.	Section 04810 - Unit Masonry Assemblies: Masonry supporting wall.
		C.	Section 05400 - Cold-Formed Metal Framing: Formed steel framed supporting wall.
		D.	Section 05500 - Metal Fabrications: Shelf angles, structural supports, anchors and other built-in components for building into manufactured stone veneer masonry by this section.
		E.	Section 06110 - Wood Framing.
		F.	Section 06160 - Sheathing.
		G.	Section 07600 - Flashing and Sheet Metal.
		H.	Section 07900 - Joint Sealants: Sealant for perimeter and control joints.
		I.	Section 09220 - Portland Cement Plaster: Metal lath and scratch coat back-up over supporting walls.
		J.	Section 10300 - Fireplaces and Stoves.
	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.	ANSI A118.4 - Specification for Latex-Portland Cement Mortar.
		B.	ASTM C 39 - Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.
		C.	ASTM C 67 - Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile.
		D.	ASTM C 91 - Standard Specification for Masonry Cement.
		E.	ASTM C 144 - Standard Specification for Aggregate for Masonry Mortar.
		F.	ASTM C 150 - Standard Specification for Portland Cement.
		G.	ASTM C 177 - Standard Test Method for Steady-State Heat Flux Measurements and Thermal. Transmission Properties by Means of the Guarded-Hot-Plate Apparatus.
		H.	ASTM C 207 - Standard Specification for Hydrated Lime for Masonry Purposes.
		I.	ASTM C 270 - Standard Specification for Mortar for Unit Masonry.
		J.	ASTM C 482 - Standard Test Method for Bond Strength of Ceramic Tile to Portland Cement.
		K.	ASTM C 847 - Standard Specification for Metal Lath.
		L.	ASTM C 932 - Standard Specification for Surface-Applied Bonding Compounds for Exterior Plastering.
		M.	ASTM C 979 - Specification for Pigments for Integrally Colored Concrete.
		N.	ASTM C 1032 - Standard Specification for Woven Wire Plaster Base
		O.	ASTM C 1059 - Standard Specification for Latex Agents for Bonding Fresh To Hardened Concrete.
		P.	ASTM D 226, Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.
		Q.	ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
		R.	ACI 530.1/ASCE 6/TMS 602 - Specifications for Masonry Structures.
		S.	ICC Evaluation Service - Evaluation Report AC51- Acceptance Criteria for Precast Stone Veneers.
		T.	ICC Evaluation Service - Evaluation Report ESR-2826 - StoneCraft Industries, Architectural Stone Veneer
		U.	LEED: US Green Building Council's Leadership in Energy and Environmental Design Green Building Rating System.
		V.	Underwriter's Laboratory (UL): Building Materials Directory.
	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.
		C.	LEED Submittals: Provide documentation of how the requirements of Credit will be met:
			1.	Product Data for Credit MR 4.1 and MR 4.2: For products having recycled content, documentation including percentages by weight of post consumer and preconsumer recycled content
			2.	Product Data for Credit MR 5.1 and Credit MR 5.2: Submit data, including location and distance from Project of material manufacturer and point of extraction, harvest or recovery for main raw material.
				a.	Include statement indicating cost for each regional material and the fraction by weight that is considered regional.
	** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected and are specified under "Products".
		D.	Selection Samples:
			1.	Manufactured Stone: Sample board for each product specified,
			2.	Mortar: Two complete sets of mortar color samples representing manufacturer's full range of available colors.
		E.	Verification Samples: For each finish product specified, two laid-up sample boards, minimum size 36 inches (1 m) square, representing actual product, full range of colors, and patterns.
		F.	Manufacturer's Certificates: Certify products meet or exceed specified requirements.
		G.	Closeout Submittals: For each finish product specified, two copies of manufacturer's cleaning and maintenance instructions and executed warranties.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with minimum five years documented experience.
		B.	Installer Qualifications: Company with minimum five years documented experience in performing Work of this section.
		C.	Certifications:
			1.	ICC Evaluation Service - Evaluation Report ESR-2826.
			2.	UL - Classification listing in Building Materials Directory: UL 546T (F8002).
	** NOTE TO SPECIFIER ** Include a sample panel or mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up might be specified. When deciding on the extent of the sample panel, consider all the major different types of work on the project.
		D.	Mock-Up: Construct sample panel at location indicated or directed, and as follows:
			1.	Size: No less than 4 feet by 4 feet (1.2 m by 1.2 m).
			2.	Include all stone unit types and sizes to be used including a typical corner condition, special shapes and mortar joint treatment. Clean the sample panel using the same materials and tools as planned for the final stone masonry construction.
			3.	Obtain Architect's acceptance of sample panel before beginning construction activities of this section.
			4.	Refinish mock-up area as required to produce acceptable work.
			5.	Do not remove sample panel until construction activities of this section have been accepted by the Architect.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
			6.	Remove sample panel at the completion of the work.
			7.	Sample panel may be incorporated into the work.
		E.	Preconstruction Meetings: Conduct preconstruction meetings including the Architect, Contractor, stone masonry subcontractor, and the flashing subcontractor to verify project requirements, substrate conditions, manufacturer's installation instructions and other requirements. Comply with Division 1 requirements.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products on pallets in manufacturer's unopened packaging until ready for installation.
		B.	Store manufactured stone materials on pallets on a dry level surface. Pallets shall not be stacked and shall be covered with tarps.
		C.	Store mortar under cover and in an area where temperature is maintained between 4 degrees C (40 degrees F) to 43 degrees C (110 degrees F).
	1.7	PROJECT CONDITIONS
		A.	Hot and Cold Weather Requirements: In accordance with ACI 530.1/ASCE 6/TMS 602 Specifications for Masonry Structures.
		B.	Ambient temperature shall be 40 degrees F (4.4 degrees C) or above during erection of stone masonry. When ambient temperature falls below 50 degrees F, mortar mixing water shall be heated.
	** NOTE TO SPECIFIER ** Reference StoneCraft's entire warrantee at www.stonecraft.com for full provisions and exclusions.
	1.8	WARRANTY
		A.	Manufacturer's standard 50 year limited warranty from date of Substantial Completion. Warrantee includes coverage against defects in materials when installed in accordance with manufacturer's installation instructions.
	1.9	EXTRA MATERIALS
		A.	See Section 01600 - Product Requirements, for additional provisions.
		B.	Furnish extra manufactured stone material in a variety of shapes and sizes in quantity equal to three percent of the installed stone.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: StoneCraft - Offered by Tapco, which is located at: 29797 Beck Rd. ; Wixom, MI 48393; Toll Free Tel: 888-580-6448; Email: request info; Web: www.stonecraft.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	MANUFACTURED STONE VENEER
		A.	Materials: Precast veneer units consist of Portland cement, sand, lightweight aggregates, and mineral oxide pigments. Units are provided with the following physical properties:
			1.	Compressive Strength: Five sample average: greater than 1,800 psi (12.4 Mpa) when tested in accordance with ASTM C 39 and ASTM C 192.
			2.	Shear Bond: 50 psi (345 kPa) when tested in accordance with ASTM C 482.
			3.	Water Absorption: 22 percent when density is less than 85 pcf; less than 18 percent when density is less than 105 pcf as tested in accordance with ICC Evaluation Service AC 51, Section 4.6 and Table 2.
			4.	Freeze-Thaw Test: Less than 3 percent weight loss and no disintegration when tested in accordance with ASTM C 67.
			5.	Thermal Resistance: 0.39 at 1.5 inches (38 mm) when tested in accordance with ASTM C 177.
			6.	Fire Hazard: Flame spread 0 / smoke development 0 when tested in accordance with ASTM E 84.
	** NOTE TO SPECIFIER ** Select product colors and patterns from the StoneCraft's literature or by direct visual inspection of samples and include selected product(s) below. Delete paragraphs below that are not required. If more than one product is used identify the locations of each product on the Drawings or on the Schedule at the end of this section. If special shapes are required clearly indicate the location and size on the Drawings.
		B.	Stone Units: Provide stone units and matching corners as applicable with no noticeable repeat pattern on wall within 100 square feet (9.29 sm).
	** NOTE TO SPECIFIER ** Cobble is a sandstone - textured profile roughly chisel-cut into rectangular Ashlar shapes. To soften Cobble's rugged good looks, the edges are slightly weather worn.
			1.	Cobble: Cobble ranges in size from 4 inches (102 mm) to 21 inches (533 mm) in length and 2.5 (64 mm) to 12 inches (305 mm) in height.
				a.	Canyon Gray.
				b.	Gray.
				c.	Mountain.
				d.	Valley Forge.
	** NOTE TO SPECIFIER ** Heritage is a classic stone profile, popular for both residential and commercial applications. It makes an impressive visual statement.
			2.	Heritage: Heritage stone ranges in size from 2 inches (51 mm) to 10 inches (254 mm) in height and 4 inches (102 mm) to 17 inches (432 mm) in length.
				a.	Bucktown.
				b.	Chardonnay.
				c.	Ohio.
				d.	Old Ohio.
				e.	Hill Country.
				f.	Pennsylvania.
				g.	Warm Spring.
				h.	Wisconsin.
	** NOTE TO SPECIFIER ** The Monarch profile contains both oversized pieces and small stones creating a striking and commanding appearance, with its fine grained texture and angular flagstone contours.
			3.	Monarch: Monarch stone ranges in size from 4 inches (102 mm) to 19 inches (483 mm) in length and 3 inches (76 mm) to 18 inches (457 mm) in height.
				a.	Canyon Gray.
				b.	Mountain.
				c.	Pennsylvania.
				d.	Sandstone.
				e.	Valley Forge.
	** NOTE TO SPECIFIER ** Top Rock has a sandstone appearance with a low profile face allowing light to emphasize the colors of each stone. Similar to the Monarch profile, Top Rock features smoother rounder edges and face texture.
			4.	Top Rock: Top Rock stone ranges in size from 3 inches (76 mm) to 21 inches (533 mm) with an average size of 10 inches (254 mm) to 12 inches (305 mm).
				a.	Brown.
				b.	Pennsylvania.
				c.	Realen.
				d.	Warm Springs.
	** NOTE TO SPECIFIER ** River Rock captures the sculptural effect of hundreds of years of rushing water on stone. Smooth rounded edges and a distinctive palette catch the eye and command attention.
			5.	River Rock: River Rock stone ranges in size from 2 inches (51 mm) to 15 inches (381 mm).
				a.	Adirondack.
	** NOTE TO SPECIFIER ** Fieldstone is a broken-looking stone of intentionally irregular shapes and sizes. When installed, Fieldstone projects a magnetic sense of substance and strength.
			6.	Fieldstone: Fieldstone ranges in size from 2 inches (51 mm) up to 17 inch (432 mm) wide pieces with an average size of 7 inches (178 mm) to 9 inches (229 mm).
				a.	Bucktown.
				b.	Canyon Gray.
				c.	Colorado.
				d.	Mountain.
				e.	Pennsylvania.
				f.	Valley Forge.
				g.	Warm Springs.
	** NOTE TO SPECIFIER ** DutchCraft Foundation Stone is inspired by the old world craftsmanship of the Pennsylvania Dutch. This profile can be used to enhance the appearance of any foundation or wall. Profile also includes 16 inch (406 mm) Jumper Stones which must be ordered separately.
			7.	DutchCraft Foundation: DutchCraft Foundation ranges in size from 18 inches (457 mm), 24 inches (610 mm), and 30 inches (762 mm) in length. All pieces are 8 inches (203 mm) in height. Include matching 16 inch (406 mm) Jumper Stones.
				a.	DutchCraft Foundation
	** NOTE TO SPECIFIER ** Ledgestone provides a clean linear appearance with varying heights and depths. This popular profile creates interesting long shadows while highlighting individual stones.
			8.	Ledgestone: Ledgestone ranges in size from 3 inches (76 mm) to 21 inches (533 mm) in length and 1.5 inches (38 mm) to 5 inches (127 mm) in height.
				a.	Bucktown.
				b.	Chardonnay.
				c.	Kingsford Gray.
				d.	Pennsylvania.
				e.	Tennessee.
				f.	Wisconsin.
	** NOTE TO SPECIFIER ** Laurel Cavern Ledge delivers a rugged and rustic appearance. Crafted from meticulously handpicked stones, this profile creates impressive scenes born from the beauty of rocky ravines and the idyllic sun-drenched countryside.
			9.	Laurel Cavern Ledge: Laurel Cavern Ledge ranges in size from 1 inch (25.4 mm) to 3.5 inches (88.9 mm) in height and 5 inches (127 mm) to 17 inches (431.8 mm) in length.
				a.	Asher.
				b.	Chardonnay.
				c.	Pennsylvania.
				d.	Tennessee.
	** NOTE TO SPECIFIER ** Select product colors and patterns from the StoneCraft's literature or by direct visual inspection of samples and include selected product(s) below. Delete paragraphs below that are not required. If special shapes are required clearly indicate the location and size on the Drawings.
		C.	Trim Accessories:
			1.	Wainscot Sills: 3 inches (76 mm) by 20 inches (508 mm) by 1.5 inches (38 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			2.	Rock Face Sills: 19-3/4 inches (502 mm) by 2 inches (51 mm) by 3 inches (76 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			3.	Hearthstones: 19 inches (483 mm) by 20 inches (508 mm) by 1.5 inches (38 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			4.	Trim Stones: 8 inches (203 mm) by 6 inches (152 mm) by 2 inches (51 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			5.	Keystones: 10 inches (254 mm) by 8 inches (203 mm) by 5.5 inches (140 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			6.	Light Box: 8 inches (203 mm) by 11 inches (279 mm) by 1.5 inches (38 mm) with 4 inch (102 mm) diameter opening.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			7.	Receptacle Box: 7 inches (452 mm) by 8 inches (203 mm) by 1.5 inches (38 mm).
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel.
			8.	Flagstone Wall Cap: 9 inches (229 mm) in width by 37 inches (940 mm) in length.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel
			9.	Flagstone Wall Cap: 12 inches (305 mm) in width by 37 inches (940 mm) in length.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel
			10.	Pier Cap: 26 inches (660 mm) in width by 26 inches (660 mm) in length.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel
			11.	Peaked Wall Cap: 12 inches (305 mm) in width by 20 inches (508 mm) in length.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel
			12.	Peaked Wall Cap: 16 inches (406 mm) in width by 20 inches (508 mm) in length.
				a.	Color: Espresso.
				b.	Color: Cream.
				c.	Color: Gray.
				d.	Color: Caramel
	2.3	ACCESSORIES
	** NOTE TO SPECIFIER ** Edit the following paragraphs to suit the project requirements. Delete if not required. Coordinate with products specified in other sections. Verify applicable installation components with the applicable building code and recommended practice for the location.
		A.	Weather Resistive Barrier: ASTM D 226, Type 1, No. 15 non-perforated asphalt- saturated felt paper (2 layers required).
		B.	Reinforcing:
	** NOTE TO SPECIFIER ** Select the reinforcing required and delete the ones not required. Comply with applicable code requirements for the type of substrate over which stone veneer is installed.
			1.	ASTM C 847, 2.5lb/yd2 (1.4kg/m2) galvanized expanded metal lath.
			2.	ASTM C 847, 3.4lb (1.8 kg/m2) galvanized 3/8 inch (9.5 mm) rib lath.
			3.	ASTM C 1032, 18 gauge (1.3 mm) woven wire mesh.
		C.	Anchorage: Tie wire, nails, screws and other metal supports, galvanized, of type and size to suit application and to rigidly secure materials in place.
		D.	Bonding Agent:
			1.	Exterior integral bonding agent for surface applied bonding compounds for exterior plastering conforming to ASTM C 932.
			2.	Exterior integral bonding agent for bonding fresh concrete to hardened concrete conforming to ASTM C 1059 Type II.
		E.	Sealer:
	** NOTE TO SPECIFIER ** Select the sealer required and delete the one not required.
			1.	Water based silane or siloxane masonry sealer, clear.
			2.	Water based silane or siloxane masonry sealer, semi-gloss.
	2.4	MORTAR
		A.	Materials:
			1.	Masonry Cement: Cement complying with ASTM C 91.
			2.	Portland Cement ASTM C 150.
			3.	Hydrated Lime: ASTM C 207.
			4.	Sand: ASTM C 144, natural or manufactured sand.
			5.	Color Pigment: ASTM C 979, mineral oxide pigments. Color as selected by the Architect.
			6.	Thinset Mortar: Latex modified thinset mortar for exterior use, complying with ANSI A 118.4
			7.	Water: Clean and potable.
	** NOTE TO SPECIFIER ** Select one of the following masonry cement paragraphs as required and delete the one not required.
		B.	Masonry Cement Proportions for Grouted Joints:
	** NOTE TO SPECIFIER ** Select the Type and recommended mix required and delete the ones not required.
			1.	Type N. 1 parts Type N Masonry Cement to 2.25 parts sand and water.
			2.	Type N. 1 part Portland Cement to 1 part Hydrated Lime to 4.5 parts sand and water.
			3.	Type S. 1 parts Type N Masonry Cement to 4.5 parts sand and water.
			4.	Type S. 1 parts Portland Cement to 1 part Hydrated Lime to 4.5 parts sand and water.
		C.	Masonry Cement Proportions for Dry-Stacked Joints:
	** NOTE TO SPECIFIER ** Select the Type and recommended mix required and delete the ones not required.
			1.	3 parts Portland Cement to 2 parts Thinset Mortar to 7 parts sand and water.
			2.	1 parts Type N Masonry Cement to 2.25 parts sand with bonding agent and water.
			3.	1 parts Type S Masonry Cement to 4.5 parts sand with bonding agent and water.
	2.5	MIXES
		A.	Mortar Mixing:
			1.	Mix mortar ingredients in accordance with ASTM C 270. Mix only in quantities needed for immediate use.
			2.	Add color pigment in grout joint mortar in accordance with pigment manufacturer's instructions.
			3.	Do not use anti-freeze compounds to lower freezing point of mortar.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	Examine substrates upon which manufactured stone veneer will be installed.
		C.	Do not begin installation until backing structure is plumb, bearing surfaces are level and substrates are clean and properly prepared.
		D.	Verify that built-in items are in proper location, and ready for roughing into stone masonry.
		E.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	** NOTE TO SPECIFIER ** Edit the following four substrate preparation paragraphs to suit project requirements. Delete paragraphs not required.
	3.2	PREPARATION FOR INSTALLATION OVER COMBUSTABLE SHEATHING
		A.	Cover sheathing with moisture barrier with all joints lapped shingle style a minimum of 2 inches (52 mm). Lap vertical joints a minimum of 6 inches (152 mm).
		B.	Install metal lath with small cups pointing upward. Apply metal lath taut, with long dimension perpendicular to supports. Lap ends minimum 1 inch (25 mm). Secure end laps with tie wire where they occur between supports.
		C.	Attach metal lath to wood supports using galvanized nails or staples at maximum 6 inches (152 mm) on center vertically and 16 inches (406 mm) on center horizontally. Fasten with a minimum of a 1 inch (25 mm) penetration of the wood studs. Overlap lath at inside and outside corners a minimum of 16 inches (406 mm).
	3.3	PREPARATION FOR INSTALLATION OVER CONCRETE OR CONCRETE MASONRY
	** NOTE TO SPECIFIER ** Edit to suit project conditions. Use paragraph A and B for work with mortar directly over clean concrete or concrete masonry. Use paragraph B for work over clean or new concrete and concrete masonry. Delete if not required.
		A.	Clean or sandblast concrete masonry to assure a proper mortar bond. Verify no bituminous, water repellent, or form release agents exist on concrete surface that are detrimental to mortar bond.
		B.	Apply bonding agent in accordance with the manufacturers printed instructions.
	** NOTE TO SPECIFIER ** Edit to suit project conditions. Use the following paragraphs for use with mortar applied to metal lath fastened to concrete or concrete masonry. Delete if not required.
		C.	Install metal lath taut, with long dimension perpendicular to supports. Lap ends minimum 1 inch (25 mm) Secure end laps with tie wire where they occur between supports.
		D.	Attach metal lath to concrete using galvanized concrete nails at maximum 6 inches (152 mm) on center vertically and 16 inches (406 mm) on center horizontally. Stop lath 1 inch (25 mm) from finished edges.
	3.4	PREPARATION FOR INSTALLATION OVER METAL SIDING OR METAL STUDS
		A.	Install metal lath taut, with long dimension perpendicular to supports. Lap ends minimum 1 inch (25 mm). Secure end laps with tie wire where they occur between supports.
		B.	Attach metal lath to support members using galvanized 1-1/4 inch (32 mm) type S-12 Panhead Screws or screw washer combination. Screws shall penetrate a minimum of 3/8 inch (0.953 cm) into the metal siding support members. Provide 1 fastener per SF of surface area and do not exceed 6 inches (152 mm) on center in any one direction.
	3.5	PREPARATION FOR INSTALLATION OVER OPEN STUDS
		A.	Install paperbacked 3.4lb (1.8 kg/m2) galvanized 3/8 inch (9.5 mm) rib lath, with long dimension perpendicular to supports. Lap ends minimum 1 inch (25 mm). Do not end lath between studs. Lath must lap on a stud.
	** NOTE TO SPECIFIER ** Select one of the following paragraphs to suit project requirements and delete the one not required.
		B.	Attach metal lath to support members using galvanized 1-1/4 inch (32 mm) type S-12 Panhead Screw or screw and washer combination. Screws shall penetrate a minimum of 3/8 inch (9.53 mm) into the metal siding support members. Provide 1 fastener per SF of surface area and do not exceed 6 inches (152 mm) on center in any one direction.
		C.	Attach metal lath to wood supports using galvanized nails or staples at maximum 6 inches (152 mm) on center vertically and 16 inches (406 mm) on center horizontally. Fasten with a minimum of a 1 inch (25 mm) penetration of the wood studs. Overlap lath at inside and outside corners a minimum of 16 inches (406 mm).
	3.6	SCRATCH COAT INSTALLATION
		A.	Apply scratch coat to nominal thickness of 1/2 inch (12.5 mm) over metal lath surfaces.
		B.	Using a mortar rake or notch trowel, create horizontal groves in the wet scratch coat to allow for better adhesion when installing the stone veneer.
		C.	Moist cure scratch coat for 24 to 48 hours.
	** NOTE TO SPECIFIER ** Edit to suit project conditions. Coordinate with placement of flashings and other moisture control products supplied by other Sections. Contact the manufacturer for additional information. Flashings, weeps and wall penetrations require special attention on drawing details. Locate and detail properly.
	3.7	FLASHINGS
		A.	Properly flash all openings and penetrations before the start of any stone work.
		B.	Coordinate placement of reinforcement, anchors and accessories, flashings and other moisture control products supplied by other sections.
		C.	Properly flash between stone veneer and adjacent materials.
		D.	Install base flashings a weeps at the base of walls as required.
	3.8	INSTALLATION
		A.	Install in accordance with manufacturer's instructions.
		B.	Pattern Bond:
	** NOTE TO SPECIFIER ** Coordinate the following paragraphs with the materials specified and with the bond required. Edit as required.
			1.	Lay stone with the finished face exposed. If a color blend is being used, take care to avoid a concentration of any one color to any one wall surface.
			2.	Maintain an approximate 1/2 inch (12.5 mm) joint, as stone allows.
			3.	Do not use stacked vertical joints.
			4.	Lay out work in advance and distribute color range of stone uniformly over total work area.
		C.	Placing and Bonding:
			1.	Dampen substrate as required to reduce excessive suction of the mortar to the scratch coat.
			2.	Dampen back of each stone prior to installation as required to reduce excessive absorption of moisture from the mortar to the back of the stone.
			3.	Apply mortar in an even layer to the back of each stone to a nominal thickness of 1/2 inch (12.5 mm)
			4.	Press each stone firmly into place by using a gentle wiggling action. Mortar should squeeze out around all edges indicating a sufficient bond with the scratch coat.
				a.	Work from the top down, laying corner pieces first for all grouted applications.
			5.	Work from the bottom up, laying corner pieces first for all jointless installations.
			6.	Remove excessive mortar as work progresses.
			7.	Do not shift or tap manufactured veneer stone after mortar has achieved initial set. Where adjustment is required, remove mortar and replace.
		D.	Joints:
			1.	Lay stones with an approximate 1/2 inch (12.5 mm) mortar joint, as stone allows.
			2.	Tool joints when "thumb-print" hard with a jointer slightly larger than the width of the joint.
			3.	Using a soft bristle brush, sweep out joints after tooling to remove excess mortar and to texture the joint.
			4.	Overgrout joints to be finished with a soft bristle brush only.
			5.	Retempering of mortar is not permitted.
	** NOTE TO SPECIFIER ** Verify control and expansion joints are correctly indicated and detailed on Drawings. Control joints shall be designed in accordance with National Concrete masonry Association TEK 10-2B for control joint design and locations.
		E.	Control and Expansion Joints: Keep joints open and free of debris. Coordinate control joint in accordance with Section 07900 for sealant performance.
		F.	Sealant: Seal all joints as required.
			1.	Provide open joints 3/8 inch (9.5 mm) wide, where masonry meets doors, windows and other exterior openings. Insert backer rod or other acceptable material into gap and apply sealant to allow for movement between dissimilar materials.
			2.	Coordinate sealant joints in accordance with Section 07900 for sealant performance.
		G.	Cutting And Fitting: Cut and fit for chases, pipes, conduit, sleeves, grounds, and other penetrations and adjacent materials. Coordinate with other sections of work to provide correct size, shape, and location.
		H.	Apply sealer in accordance with the manufacturer's printed instructions.
	3.9	FIELD QUALITY CONTROL
	** NOTE TO SPECIFIER ** Include for testing of mortar and grout when assurance of mix quality is critical to the project.
		A.	Test mortar and grout in accordance with Section 01110.
		B.	Testing of Mortar Mix: In accordance with ASTM C 780, Annex A4, for mortar aggregate ratio and ASTM C 780, Annex A5, for mortar water content.
	** NOTE TO SPECIFIER ** Include for testing Manufacturer's Field Services when quality assurance is critical to the project. Adjust the number of visits as required.
		C.	Manufacturer's Field Services: Provide the services of the Manufacturer's Field Service Representative to make up to four periodic site visits for installation consultation and inspection.
	3.10	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Provide protective coverings as required for adjacent construction.
		C.	Touch-up, repair or replace damaged products before Substantial Completion.
	3.11	CLEANING
		A.	Remove protective coverings at the completion of work.
		B.	Cleaning Veneer: Clean veneer as follow:
			1.	When the work is completed and the mortar has set, clean from top to bottom using a soft bristle brush and a mild detergent solution.
			2.	Do not use metal brushes or acids for cleaning.
			3.	Rinse immediately with clean water.
		C.	Efflorescence: Remove efflorescence as follows:
			1.	Allow veneer to dry thoroughly.
			2.	Scrub with soft bristle brush and clean water.
			3.	Rinse immediately with clean water; allow drying.
			4.	If efflorescence is still visible, repeat above procedure using a solution of 1 part household vinegar and 5 parts water.
			5.	Rinse immediately with clean water.
	END OF SECTION