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	SECTION 09652
	RESILIENT SHEET FLOORING
	** NOTE TO SPECIFIER ** LG Hausys Floors; resilient tile and sheet flooring. . This section is based on the products of LG Hausys Floors, which is located at: 900 Circle 75 Parkway Suite 1500 Atlanta, GA 30339 Toll Free Tel: 888-543-5872 Tel: 678-486-8224 Email: request info Web: www.lgfloors-usa.com [ Click Here ] for additional information. LG Hausys Floors is the ideal flooring solution for a wide range of healthcare and commercial applications, providing durable, anti-bacterial vinyl floors that are easy to install and maintain. LG Hausys Floors is taking resilient floor manufacturing and environmental stewardship to the next level. LG Floors™' brand reputation, environmental stewardship, and commitment to excellence as a solutions partner ensures a quality customer experience. LG Floors™' extensive collection of commercial flooring features sophisticated patterns and colors that are designed to coordinate with one another, and represent fresh concepts for intelligently defining space. With LG Floors™, you will be able to elevate your full design potential to transform any space into a relaxing, comfortable atmosphere. In healthcare, LG Floors™ truly offers you the opportunity to create a better healing and working ambience by bringing the peaceful spirit of nature from the outdoors to the inside environment.
	Traditionally, in the resilient flooring category, manufacturers have been plagued by the fact that resilient floors, because of application and installation, were limited in afterlife recyclability and reuse of the product. This has been unacceptable to many specifiers and end-users, especially since a good example has been set by our flooring brethren in the carpeting category. However, the fact remains that, when a resilient floor is glued down to a substrate, the glue cannot be removed afterward, making resilient flooring unusable in its afterlife. We needed to find another way. In addition to this dilemma, a true source of recycled material has never been easy to find. Currently, many manufacturers reuse their own scrap back into the product. According to the ISO references in the LEED rating system, this doesn't qualify as post-industrial content. However, even in this day and age, many manufacturers are unaware of this definition and still promote their material as containing post-industrial material. LG has discovered several ways to not only incorporate true post-industrial content into their product but, for the first time in the industry, LG will be able to incorporate their own post-consumer recycled content into resilient floor covering. Post-consumer recycled content is, of course, viewed as the most coveted because it involves reclaiming material after it has been used by the consumer. This kind of recycled content is more difficult to acquire, because it tends to be sporadically available and its reclamation is difficult. Unlike post-industrial material that may be sitting in great quantity in some factory, post-consumer material is spread out among many households. LG has developed a way of incorporating post-industrial and post-consumer content by creating a new sustainability program. LG is domestically reclaiming their own product (as well as the competition's material) from individual households and end-users and recycling it to make floors again. This is the closest any resilient flooring manufacturer has come to producing material in a closed loop manufacturing process. There are other environmental benefits that are gained by using LG Flooring: Floorscore™ indoor environmental quality, compliant adhesives and sealants, green cleaning and maintenance, and much more. Please see LG Hausys Floors' LEED Scorecard for more information on how our products will add value to a LEED project.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Resilient sheet flooring.
	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.
		B.	Section 06100 - Rough Carpentry: Plywood subflooring and underlayment.
		C.	Section 07260 - Vapor Retarders: Moisture remediation.
		D.	Section 09651 - Resilient Tile Flooring: Resilient tile floor coverings.
		E.	Section 09653 - Resilient Base and Accessories: For resilient base, reducer strips, and other accessories installed with resilient floor coverings.
	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 International:
			1.	ASTM D 2047 - Standard Test Method for Static Coefficient of Friction of Polish-Coated Flooring Surfaces as Measured by the James Machine.
			2.	ASTM E 648 - Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source.
			3.	ASTM E 662 - Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials.
			4.	ASTM F 137 - Standard Test Method for Flexibility of Resilient Flooring Materials with Cylindrical mandrel Apparatus.
			5.	ASTM F 386 - Standard Test Method for Thickness of Resilient Flooring Materials Having Flat Surfaces.
			6.	ASTM F 410 - Standard Test Method for Wear Layer Thickness of Resilient Floor Coverings by Optical Measurement.
			7.	ASTM F 710 - Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring
			8.	ASTM F 925 - Standard Test Method for Resistance to Chemicals of Resilient Flooring.
			9.	ASTM F 970 - Standard Test Method for Static Load Limit.
			10.	ASTM F 1303 - Standard Specification for Sheet Vinyl Floor Covering with Backing.
			11.	ASTM F 1700 - Standard Specification for Solid Vinyl Floor Tile.
			12.	ASTM F 1869 - Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.
			13.	ASTM F 2170 - Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using In Situ Probes.
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Submit three copies of 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.
			4.	Maintenance recommendations.
	** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
		C.	Selection Samples: For each finish product specified, two sets of each type, colors and finish of resilient flooring and accessory required, indicating full range of color and pattern variation as proof of application compliance.
		D.	Verification Samples: For each finish product specified, three complete sets of each type, colors and finish of resilient flooring and accessory required, indicating color and pattern of actual product, including variations, as proof of application compliance.
		E.	Certification: Upon request by Architect manufacturer to provide third party written test results of physical characteristics and performance attributes performed by an independent laboratory.
		F.	Closeout Submittals: Submit three copies of the following:
			1.	Maintenance and operation data includes - methods for maintaining installed products, and precautions against cleaning materials and methods detrimental to finishes and performance.
			2.	Warranty documents specified herein.
		G.	Flame Spread Certification: Submit manufacturer's certification that resilient flooring furnished for areas indicated to comply with required flame spread rating has been tested and meets or exceeds indicated or required standard.
	** NOTE TO SPECIFIER ** Delete if not required.
		H.	LEED Documentation Submittals:
			1.	LEED NC 2.2 & CI 2.0 Rating System:
				a.	MR 4.1 - Post Consumer 10% (post-consumer + 1/2 pre-consumer).
				b.	MR 4.2 - Post Consumer 20% (post-consumer + 1/2 pre-consumer).
				c.	EQ 4.1 - Adhesives and Sealants SCAQMD Rule #1168.
				d.	EQ 4.3 - FloorScore Certification in lieu of CRI.
				e.	ID 1.1 - Green Housekeeping Innovation Credit (inquire within) borrowing from LEED EB IEQ 10.3.
			2.	LEED EB 2.0 Rating System:
				a.	MR 2.1 - Optimize Use of Alternative Materials; Post Consumer Recycled Content.
				b.	MR 3.1 - Optimize Use of IAQ Products, A. Adhesives & Sealants SCAQMD Rule #1168.
				c.	MR 3.2 - Optimize Use of IAQ Products, C. FloorScore Certification in lieu of CRI.
				d.	MR 4 - Sustainable Cleaning Products and Services.
				e.	IEQ 10.3 - Green Cleaning - Low Impact Environmental Policy.
			3.	LEED Schools, NC & Major Renovations Rating System:
				a.	MR 1.3 - Maintain 50% of Interior Non-Structural Elements.
				b.	MR 4.1 - Post Consumer 10% (post-consumer + 1/2 pre-consumer).
				c.	MR 4.2 - Post Consumer 20% (post-consumer + 1/2 pre-consumer).
				d.	EQ 4 - Option 1 - Adhesives and Sealants SCAQMD Rule #1168.
				e.	IEQ 4 - Option 3 - Flooring Systems - CA 1350.
				f.	ID 1.1 - Green Housekeeping Innovation Credit borrowing from LEED EB IEQ 10.3.
			4.	LEED Retail - NC & Major Renovations Rating System:
				a.	MR 1.3 - Maintain 50% of Interior Non-Structural Elements.
				b.	MR 4.1 - Post Consumer 10% (post-consumer + 1/2 pre-consumer).
				c.	MR 4.2 - Post Consumer 20% (post-consumer + 1/2 pre-consumer).
				d.	IEQ 4 - Option 1 Adhesives and Sealants SCAQMD Rule #1168
				e.	IEQ 4 - Option 3 Flooring - FloorScore Certified.
				f.	ID 1.1 - Green Housekeeping Innovation Credit borrowing from LEED EB IEQ 10.3.
	1.5	QUALITY ASSURANCE
	** NOTE TO SPECIFIER ** Add quality requirements if required. Delete if not required.
		A.	Manufacturer Qualifications: Whenever possible, provide each type of resilient flooring and accessories as provided by a single manufacturer, including recommended primers, adhesives, sealants, finish accessories and leveling compounds.
	** NOTE TO SPECIFIER ** Add quality requirements if required. Delete if not required.
		B.	Installer Qualifications: Minimum five years experience and completed at least three projects of similar magnitude, material and complexity. Upon request, provide project references including contract names and telephone numbers for three projects.
	** 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, color, sheen and finished appearance are approved by Architect.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's original unopened, undamaged packaging until ready for installation.
		B.	Store all rolls standing upright; do not lay rolls down for long periods.
		C.	Flooring material and adhesive shall be acclimated to the installation area for a minimum of 48 hours prior to installation.
	1.7	PROJECT CONDITIONS
		A.	Environmental Requirements/Conditions: In accordance with manufacturer's recommendations. Areas to receive flooring shall be clean, fully enclosed, weather tight with the permanent HVAC set at a uniform temperature of at least 68 degrees F (20 degrees C) 72 hours prior to and during and for not less than 48 hours after installation. The flooring material shall be conditioned in the same manner prior to installation. Ambient temperature shall not exceed 100 degrees F (38 degrees C) after installation.
		B.	Close spaces to traffic during resilient flooring installation and for a period of time after installation as recommended in writing by the manufacturer.
		C.	Install resilient flooring materials and accessories after other finishing operations, including painting, have been completed.
		D.	Where demountable partitions and other items are indicated for installation on top of sheet resilient flooring material, install flooring material before these items are to be installed.
		E.	All material shall be from the same batch and the rolls shall be installed in consecutive order. If material from more than one batch is to be used, the job shall be laid out so that different batch numbers are not installed side by side.
	1.8	WARRANTY
		A.	Provide manufacturer's standard warranty against manufacturing defects and wearing.
	** NOTE TO SPECIFIER ** Add 'Attic Stock' requirements or delete if not required.
	1.9	EXTRA MATERIALS
		A.	Deliver to Owner extra materials from same production run as products installed. Package products with protective covering and identify with descriptive labels. Comply with Division 1 closeout submittals requirements.
			1.	Quantity: Furnish quantity of flooring units in full rolls equal to 2 percent of amount installed.
			2.	Delivery, Storage and Protection: Comply with Owner's requirements for delivery, storage and protection of extra materials.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: LG Hausys Floors, which is located at: 900 Circle 75 Parkway Suite 1500 ; Atlanta, GA 30339; Toll Free Tel: 888-543-5872 ; Tel: 678-486-8224 ; Email: request info; Web: www.lgfloors-usa.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 if not required.
	2.2	RESILIENT SHEET FLOORING
		A.	Resilient Sheet Flooring: Naturelife by LG Floors with the following characteristics:
			1.	Construction: High performance polyurethane top layer, clear wear layer (embossed in register), high-res image layer, reinforcing glass layer, commercial backing layer and polyester mesh scrim.
			2.	Reference Specification: ASTM F 1303, Type I, Grade 1.
			3.	Certification: Floorscore certified for Indoor Air Quality by SCS Labs.
			4.	Recycled Content: Minimum of 20 percent post-consumer recycled content.
			5.	Physical Data:
				a.	Roll Size, Nominal, 72 inch width X 25 yd long rolls; actual 1.83m width X 22.86m long rolls.
				b.	Weight: 5.55 lbs./yd2 (2.99kg/m2).
				c.	Backing Class: 4-ply fused backing system that includes 1.7mm PVC internal layer and polyester mesh backing - Class A.
			6.	Physical Characteristics:
				a.	ASTM F 386 Total Thickness: 0.086 (2.2mm).
				b.	ASTM F 410 Wear Layer Thickness: 0.02 (0.5mm).
				c.	ASTM D 2047 Slip Resistance: Exceeds the recommendations of OSHA and the ADA.
				d.	ASTM F 970 - Residual Indentation: Passes.
				e.	ASTM F 137 Flexibility: Passes.
				f.	ASTM F 1514 Resistance to Heat: Passes.
				g.	ASTM F 1515 Resistance to Light: Passes.
				h.	ASTM F 1303 Resistance to Chemicals: Passes.
				i.	ASTM G 21 Resistance to Fungi: Rate "0" *Rate 0: Fungi free.
				j.	AATCC 147 Antibacterial Activity: Resist the propagation of bacteria.
			7.	Fire Test Data:
				a.	ASTM E 648 Critical Radiant Flux: > 0.45 watts / cm2, NFPA Class I.
				b.	ASTM E 662 Smoke Density: < 450 - Passes.
			8.	Product Item Number and Name:
				a.	Zelkova:
					1)	NLA7713 Japanese Oak-Yellow.
					2)	NLA7720 Japanese Oak-Green.
				b.	Oak:
					1)	NLA7481 Scandinavian Oak.
					2)	NLA8126 American Oak.
					3)	NLA8127 Natural Oak.
					4)	NLA5257 Aged Oak.
					5)	NLA5255 Chocolate Oak.
					6)	NLA5256 Dark Oak.
				c.	Cherry:
					1)	NLA8343 Honduran Cherry.
					2)	NLA5305 Golden Cherry.
					3)	NLA5301 Traditional Cherry.
					4)	NLA5303 American Cherry.
					5)	NLA5306 Brazilian Cherry.
					6)	NLA7716 Chocolate Cherry.
				d.	Bamboo:
					1)	NLA9553 Bamboo (Chocolate).
					2)	NLA9552 Bamboo (Coffee).
					3)	NLA9551 Bamboo (Natural).
				e.	Natural Species:
					1)	NLA9446 Antique Mahogany.
					2)	NLA9571 American Walnut.
					3)	NLA9561 Rosewood.
					4)	NLA8265 Teak.
					5)	NLA8311 Apple.
					6)	NLA5304 Light Maple.
				f.	Rustic:
					1)	NLA0011 Greenwich Pine.
					2)	NLA0012 Mystic Pine.
					3)	NLA0013 Stamford.
					4)	NLA0021 Roxbury Pine.
					5)	NLA0022 Weston Pine.
					6)	NLA0031 Phoenix Paulownia.
					7)	NLA0032 Temple Paulownia.
				g.	Organic:
					1)	NLA9541 Pumice.
					2)	NLA7311 Sierra.
					3)	NLA7315-21 Sanoran.
					4)	NLA7312 Sedona.
					5)	NLA7318-21 San Juan.
					6)	NLA7317-21 Salinas.
					7)	NLA7323-21 Sequoia.
					8)	NLA7314-21 Sage.
					9)	NLA7319-21 River Rock.
					10)	NLA7316-21 Sandalwood
					11)	NLA7320-21 Bluestone.
					12)	NLA7322-21 Cascade.
					13)	NLA7321-21 Amethyst Smoke.
		B.	Resilient Sheet Flooring: Artwalk by LG Floors with the following characteristics:
			1.	Construction: Wear layer, middle layer, and fabric.
			2.	Reference Specification: ASTM F 1303, Type I, Grade 1.
			3.	Physical Data:
				a.	Roll Size: Nominal, 78.74 inch width X 49.2 feet length; actual 2 meter width X 15 meter length.
				b.	Weight: 6.94 lbs/ yd2, (3.77 kg./m2).
				c.	Backing Class: Class A, PVC with fabric mesh.
			4.	Physical Characteristics:
				a.	ASTM F 386 Total Thickness: 0.126 (3.2mm).
				b.	ASTM F 410 Wear Layer Thickness: 0.040 (1.0mm).
				c.	ASTM D 2047 - Slip Resistance: Exceeds the recommendations of OSHA and the ADA.
				d.	ASTM F 970 Residual Indentation: 250 psi.
				e.	ASTM F 137 Flexibility: Passes.
				f.	ASTM F 1514 Resistance to Heat: Passes.
				g.	ASTM F 1515 Resistance to Light: Passes.
				h.	ASTM F 925 Resistance to Chemicals: Passes.
			5.	Fire Test Data:
				a.	ASTM E 648 Critical Radiant Flux: > 0.45 watts / cm2, NFPA Class I.
				b.	ASTM E 662 Smoke Density: < 450 - Passes.
			6.	Product Item Number and Name:
				a.	Item SD180, Black.
				b.	Item SD263, Brushed chrome.
				c.	Item SD273, Brushed gold.
				d.	Item SD233, Brushed indigo.
				e.	Item SD264, Brushed platinum.
				f.	Item SD183, Charcoal.
				g.	Item SD133, Midnight blue.
				h.	Item SD120, Silver.
	2.3	ADHESIVE
	** NOTE TO SPECIFIER ** LG Floors 2100 may be used on all grades of concrete on above or below grade in the absence of moisture, as well as suspended approved wood floors. LG Floors 2100 may also be used for installing over existing, non-cushioned resilient flooring that has been prepared according to manufacturer's recommended methods. This adhesive is non-flammable, water and alkali resistant and freeze-thaw stable. LG Floors 2100 has excellent resistance to plasticizer migration and sets to a tough permanent bond. Cleans up with mild detergent and water when wet, with mineral spirits when dry. Use LG Floors recommended trowel notch size. Always follow directions on the adhesive label. Delete if not required.
		A.	LG Floors 2100 solvent free vinyl tile, plank, and sheet adhesive:
			1.	LG Floors 2100 Solvent Free Vinyl Tile and Sheet Adhesive is a premium, (non-staining) acrylic adhesive, designed to permanently install LG Floors resilient sheet flooring, vinyl tile, and vinyl plank.
	** NOTE TO SPECIFIER ** LG Floors recommends LG Floors 3100 for floors where heavy commercial traffic, heavy rolling loads, heavy point loads or occasional topical moisture may be experienced. It is recommended for use in hospital rooms, refrigeration areas, and spaces with very heavy commercial traffic and industrial rolling loads. This adhesive is non-flammable, water and alkali resistant and freeze-thaw stable. Cleans up with alcohol while wet. Use LG Floors recommended trowel notch size. Always follow directions on the adhesive label. Delete if not required.
		B.	LG Floors 3100 solvent free vinyl tile and sheet epoxy.
			1.	LG Floors 3100 is a 2-part epoxy adhesive specifically formulated for the installation LG Floors vinyl flooring coverings over porous and non-porous surfaces.
	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.	The installation of the resilient flooring shall not begin until the work of all other trades has been completed, especially overhead trades.
		D.	Areas to receive flooring shall be adequately lighted during all phases of the installation process.
	3.2	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 if concrete substrates not required.
		C.	Concrete Substrates: Prepare according to ASTM F 710. The Contractor shall verify to the Owner and installer a minimum of 30 days prior to the scheduled resilient flooring installation the following substrate conditions. All substrate testing shall be documented and submitted to the Architect and Owner before commencement of the flooring installation.
			1.	Verify that substrates are dry and free of curing compounds, sealers, and hardeners.
			2.	Remove substrate coatings and other substances that are incompatible with adhesives and that contain soap, wax, oil, or silicone, using mechanical methods recommended by manufacturer. Do not use solvents.
			3.	Alkalinity and Adhesion Testing: Perform tests recommended by manufacturer. Proceed with installation only after substrates pass testing.
			4.	Moisture Testing: Perform tests recommended by manufacturer and as follows. Proceed with installation only after substrates pass testing.
				a.	Perform alkalinity testing. Proceed with installation only if maximum pH is below 10.0
				b.	Perform anhydrous calcium chloride test, ASTM F 1869. Proceed with installation only after substrates have maximum moisture-vapor-emission rate of 5 lb of moisture/1000 sf (2.3 kg of water/92.9 sqm) in 24 hours.
				c.	Perform relative humidity test using in situ probes, ASTM F 2170. Proceed with installation only after substrates have a maximum 75 percent relative humidity level measurement.
		D.	Contingency for High Moisture Readings: If at the time of testing the moisture readings are in excess of the specified limits the Contractor will initiate testing using the Petrographic core analysis to determine if the water/cement ratio and sufficient hydration has taken place. The Contractor is to verify the results to the Owner and installer in writing.
		E.	Moisture Remediation: Basic Steps as Follows.
			1.	Removal of all floor coverings, adhesives residue, curing compounds, parting compounds or other surface contaminants by mechanical means (shot blasting or other suitable methods).
			2.	Identification and treatment of all cracks and joints, by the sealer manufacturer's approved methods.
			3.	Application of the sealer. Sealer shall be designed and warranted for the purpose of controlling excessive concrete moisture vapor emission and the alkali character of the concrete.
			4.	Application of a sacrificial cementitious topping to act as a substrate for the installation of the resilient floor coverings.
	3.3	INSTALLING RESILIENT SHEET VINYL PRODUCTS
		A.	General:
			1.	Flooring material and adhesive shall be acclimated to the installation area for a minimum of 48 hours prior to installation.
			2.	Use only LG Flooring adhesives.
			3.	Use a 1/32 inch by 1/16 inch by 1/32 inch (.75 mm by 1.5 mm by .75 mm) U-notch trowel only.
			4.	Material shall always be visually inspected prior to installations. Any material installed with visual defects will not be considered a legitimate claim as it pertains to labor cost.
			5.	LG Floors sheet vinyl is dimensionally stable. It will not shrink or compress when properly installed. If cut too full, it may result in a bubble.
			6.	Install all cuts and rolls in consecutive sequence.
			7.	Do not reverse sheets for seaming.
			8.	Ensure that all recommendations for sub-floor and jobsite conditions are met prior to beginning the installation. Start of installation will indicate that Installer has accepted these conditions.
		B.	Cutting and Fitting Sheets:
	** NOTE TO SPECIFIER ** LG sheet vinyl is very flexible and easy to handle. In most cases, a qualified installer will be able to freehand knife the material in areas where base or trim moldings will be installed after the installation is completed.
			1.	Cut the required length off the roll, including enough to run up the wall 2 inches (52 mm) at either end.
			2.	Push the length of the sheet as close to the starting wall as possible, letting the extra length run up the wall at the far end.
			3.	Set the scribes to a minimum of 3/8 inch (9.5 mm) more than the greatest distance between the wall and the flooring material. Freehand knife or scribe the shape of the wall onto the flooring.
			4.	Push the fitted sheet lightly against the wall.
			5.	Continue freehand knifing around the room.
		C.	Flash Cove Installations
			1.	Flash coving is an extension of the sheet flooring up the wall to form a wall base.
			2.	Seams in the flash coved areas shall be treated the same as seams throughout the rest of the installation.
			3.	4 inches to 6 inches (102 mm to 152 mm) flash coving is common. For all heights in excess of 6 inches (152 mm) check applicable local building codes.
			4.	Use LG 2100 in flash coved areas. Use a brush or roller to apply LG 2100 to the wall, over the cove stick and 1 inch to 2 inches (25 mm to 52 mm) onto the floor.
			5.	LG 2100 adhesive shall be allowed to dry to the touch so that there is little or no transfer of adhesive to the finger. Once the adhesive reaches the dry-to-the-touch state, it is ready.
			6.	After fitting material into adhesive, use a hand roller to assure contact with the adhesive.
		D.	Seaming:
	** NOTE TO SPECIFIER ** Seams may be cut by either overlap and double cut or by straight edging or edge trimming one side, and recess scribing the second sheet.
			1.	Recess scribe method - On non-patterned material, trim approximately 1/2 inch (13 mm) off one salvage edge of seam with a straightedge and sharp knife or edge trimmer. Cut second sheet with proper extra length. Position second sheet with a 1/2 inch to 1 inch (13 mm to 25 mm) overlap over first sheet at the seam. Set recess scribes so that the seam will have a slight gap, about half the thickness of a razor blade. If cut too full, it will result in bubbles or ridges. Recess scribe seam. Repeat for as many sheets as necessary to complete the area.
			2.	Double cut method - Overlap the salvage edges to align the pattern width and length. On Naturelife Wood, overlap the salvage edge approximately 1/2 inch (13 mm) to align the bevel edge of the planks. Place a 4 inch (102 mm) wide scrap of material under the seam area. Place a straight edge directly over the beveled edge of the plank, and using a new razor blade, hold the knife straight up and down and cut through both pieces in one cut.
			3.	Lap back all overlapped sheets as one, half way back.
			4.	Do Not back roll vinyl backed floorings.
			5.	Do Not butt factory edges.
			6.	Do Not straight edge and butt, or edge trim and butt.
			7.	Snap white chalk lines along areas where adhesive will be spread to ensure an even and straight line of adhesive.
			8.	Spread adhesive with proper notched trowel over entire area. Be very careful not to leave any adhesive ridges or puddles.
	** NOTE TO SPECIFIER ** The sub-floor porosity and room conditions (temperature, humidity, etc.) can affect the working time of the adhesive.
			9.	Push lapped flooring from the fold into adhesive, working toward the wall. Do not flop material in; air will be trapped, causing bubbles.
			10.	Roll floor with a minimum 100 lb roller in both directions. Roll across width first, then along length.
	** NOTE TO SPECIFIER ** To ensure proper bonding of the material, it is recommended to roll in the material next to the walls with a hand seam roller.
			11.	After material has been laid into the adhesive, recess scribe the seams using either the scribe blade or scribe pin. Hold the knife blade straight up and down to make final cut. Do not undercut.
	** NOTE TO SPECIFIER ** Set recess scribes so that the seam will have a slight gap, about half the thickness of a razor blade. If cut too full, it will result in bubbles or ridges.
			12.	Roll the seam with a hand roller.
			13.	Repeat the same procedure for additional seams in the room.
			14.	Heat welding LG vinyl sheet flooring is always recommended (except Artwalk).
			15.	Heat weld seams the following day. See heat weld instructions.
	** NOTE TO SPECIFIER ** Delete if not required.
	3.4	HEAT WELDING
		A.	Heat welding is the recommended procedure for sheet vinyl seams, coving and corner fill pieces of all LG Floors (except Artwalk). Professionally heat welded seams provide a strong, watertight, hygienic, monolithic surface.
		B.	The welding rod is made from PVC which is designed to melt at the same temperature as the PVC of the sheet flooring, permanently fusing the two together.
		C.	Heat welding shall be done after the flooring adhesive has set up, usually the following day.
		D.	Seam edges shall be slightly gapped and vertical. Wide gapped or undercut seams will prevent quality welds.
		E.	The depth of the groove shall be 1/2 to 2/3 the thickness of the material. Be careful not to go too deep. The groove shall also be centered along the two edges. This is very important to ensure proper strength and bonding of the welding rod.
		F.	Clean grooves thoroughly of all foreign contamination, including dust.
		G.	Use only professional quality welding equipment that will maintain sufficient temperatures. Many types, sizes and styles of welding tips are available today. A tip shall be chosen to produce a quality weld without damaging the appearance of the sheet vinyl.
		H.	Preheat welding gun before beginning. Temperature shall be set approximately 750 degree F. It is recommended that the installer perform a test weld on some waste material to verify proper temperature and welding speed prior to welding installed material.
		I.	Determine the correct welding speed by ensuring that the welding rod actually fuses into the groove. A small ridge shall form on either side of the welding rod, at the vinyl surface. If no ridge forms, you have not heat welded the seam.
		J.	While the welding rod is still warm, trim off 1/2 -2/3 the excess rod with a spatula knife and trim plate in one continuous movement.
		K.	After the rod has cooled to room temperature, make the final trim pass using only a razor sharp spatula knife in one continuous movement.
		L.	Apply a glaze to the surface of the trimmed weld. Remove the tip from the welding gun. Hold the gun a few inches above the welded seam and apply hot air along the seam until the surface of the weld rod begins to shine. The shine should not exceed the sheen level of the flooring. The glazed seam will be less porous, smoother, and less noticeable.
	** NOTE TO SPECIFIER ** Chemical welding is the recommended procedure for Artwalk™. Delete if not required.
	3.5	CHEMICAL WELDING
		A.	Ensure seam is completely clean and dry.
		B.	Thoroughly shake the chemical seam sealer for proper mixing.
		C.	Pour entire contents of sealer into applicator bottle.
		D.	Insert the tip of the LG Floor welding applicator down into the seam.
		E.	Pull applicator back along the seam at a steady pace applying a constant pressure on the bottle, applying enough sealer to seal the edges of the sheet and leaving a small bead of sealer on the surface of the seam.
		F.	Clean up any excess sealer using a dry towel within 30 seconds after seam sealing.
		G.	Caution: Chemical welding solution left on the surface of the floor for more than 30 seconds may damage the surface of the material.
		H.	Keep all traffic off the seam for a minimum of 24 hours.
	3.6	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION