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	SECTION 07530
	THERMOSET MEMBRANE ROOFING
	** NOTE TO SPECIFIER ** Versico, Inc.; Thermoset Membrane Roofing. . This section is based on the products of Versico, Inc., which is located at: P.O. Box 1289. Carlisle, PA 17013. Toll Free Tel: (800)992-7663. Fax: (717) 960-4036. Email: info@versico.com. Web: www.versico.com . Versico Incorporated is one of the largest providers of single-ply roofing systems in the world! With an eighteen-year track record of success, Versico has established their position in the industry, offering a single-source approach to their customers which results in more accuracy and convenience. . Versico offers single-ply systems to meet the needs of almost any type of building structure. These systems include VersiGard EPDM, VersiFlex PVC, and our state-of-the-art line of VersiWeld TPO heat-weldable roofing systems, as well as a full line of accessory products and warranties.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Thermoset Membrane Roofing.
		B.	Membrane Flashings.
		C.	Metal Flashings.
		D.	Roof Insulation.
	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: Structural concrete roof decks.
		B.	Section 03510 - Cementitious Roof Deck.
		C.	Section 03520 - Lightweight Concrete Roof Insulation.
		D.	Section 05310 - Steel Roof Deck.
		E.	Section 06100 - Rough Carpentry: Roof blocking installation and requirements.
		F.	Section 07620 - Sheet Metal Flashing and Trim: Metal flashing and counter flashing installation and requirements.
		G.	Section 07700 - Roof Specialties and Accessories: Roof hatches, expansion joints, pavers and other related roof accessories.
		H.	Section 08600 - Skylights: Roof Windows and metal framed skylights.
		I.	Section 15430 - Plumbing Specialties: roof drains, scuppers, gutters and downspout installation and requirements.
	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.	American Society of Civil Engineers (ASCE) - ASCE 7 - Minimum Design Loads for Buildings and Other Structures, Current Revision.
		B.	ASTM International (ASTM):
			1.	ASTM C 208 - Standard Specification for Cellulosic Fiber Insulating Board.
			2.	ASTM C 578 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.
			3.	ASTM C 728 - Standard Specification for Perlite Thermal Insulation Board.
			4.	ASTM C 1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.
			5.	ASTM D 41 - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.
			6.	ASTM D 412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers-Tension.
			7.	ASTM D 624 - Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers.
			8.	ASTM D 816 - Standard Test Methods for Rubber Cements.
			9.	ASTM D 4263 - Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method.
			10.	ASTM D 4637 - Standard Specification for EPDM Sheet Used In Single-Ply Roof Membrane.
			11.	ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials.
		C.	Factory Mutual (FM Global):
			1.	Approval Guide.
				a.	Factory Mutual Standard 4470 - Approval Standard for Class 1 Roof Covers.
				b.	Loss Prevention Data Sheets 1-28, 1-29
		D.	International Code Council (ICC):
			1.	International Building Code (IBC).
		E.	National Roofing Contractors Association (NRCA) - Low Slope Roofing and Waterproofing Manual, Current Edition.
		F.	Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) - Architectural Sheet Metal Manual.
		G.	Underwriters Laboratories (UL):
			1.	TGFU R1306 - "Roofing Systems and Materials Guide".
			2.	UL-790 - Standard Test Method for Fire Tests of Roof Coverings.
	** NOTE TO SPECIFIER ** Retain only design criteria required for the project and delete those not required or not applicable.
	1.4	DESIGN CRITERIA
		A.	Wind Uplift Performance:
	** NOTE TO SPECIFIER ** Select required wind uplift performance criteria. Performance may be specified by referencing ASCE-7, by reference of an FM tested assembly, or both.
			1.	Roof system is designed to withstand wind uplift forces as calculated using the current revision of ASCE-7.
	** NOTE TO SPECIFIER ** Insert the appropriate FM rating as found in the current FM Guide.
			2.	Roof system is designed to achieve a FM 1-___ wind uplift rating.
		B.	Fire Resistance Performance:
	** NOTE TO SPECIFIER ** Select fire rating. Delete two of the next three paragraphs.
			1.	Roof system will achieve a UL Class A rating when tested in accordance with UL-790.
			2.	Roof system will achieve a UL Class B rating when tested in accordance with UL-790.
			3.	Roof system will achieve a UL Class C rating when tested in accordance with UL-790.
	** NOTE TO SPECIFIER ** Insert LTTR Value. Modify 'R value' to 'LTTR value' where Polyisocyanurate insulation is not used in the system.
		C.	Thermal Performance: Roof system will achieve a minimum R value not less than ____.
		D.	Drainage: Provide a roof system with positive drainage where all standing water dissipates within 48 hours after precipitation ends.
		E.	Building Codes:
			1.	Roof system will meet the requirements of all federal, state and local code bodies having jurisdiction.
	** NOTE TO SPECIFIER ** Delete the next paragraph if LEED Credit is not required on this project.
	1.5	LEED CERTIFICATION:
		A.	Coordinate with Section 01115 - Green Building Requirements, for LEED certification submittal forms and certification templates.
		B.	Submittals Required:
			1.	SSc7.2 Heat Island Effect - Roof (LEED Form).
			2.	MRc4 Recycled Content (LEED Form).
			3.	MRc5 Local and Regional Materials (LEED Form).
			4.	EQc4.1 Low-Emitting Materials - Adhesives and Sealants (LEED Form).
	1.6	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:
			1.	Submit approved plan, section, elevation or isometric drawings which detail the appropriate methods for all flashing conditions found on the project.
			2.	Coordinate approved drawings with locations found on 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 chips representing manufacturer's full range of available colors, membranes, and thicknesses.
		E.	Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square representing actual product, color, and patterns.
	1.7	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: All primary products specified in this section will be supplied by a single manufacturer with a minimum of ten (10) years experience.
		B.	Installer Qualifications:
			1.	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 ** retain one of the next two paragraphs only if manufacturer supplied guaranties are specified. Delete if not required.
			2.	Installer must be capable of extending the Manufacturer's Labor and Materials guarantee.
			3.	Installer must be capable of extending the Manufacturer's No Dollar Limit guarantee.
	** 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, installation techniques and workmanship.
			1.	Finish areas designated by Architect.
			2.	Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
	1.8	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.
	1.9	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.
	1.10	WARRANTY
		A.	At project closeout, provide to Owner or Owners Representative an executed copy of the manufacturer's warranty or guarantee, outlining its terms, conditions, and exclusions from coverage.
	** NOTE TO SPECIFIER ** Select Warranty Type. Delete one of the next two paragraphs and modify the included text as instructed.
			1.	Labor and Materials (Penal Sum) System Guarantee:
	** NOTE TO SPECIFIER ** Insert guarantee duration and value below.
				a.	Duration: ______ years.
				b.	Dollar per square value: ______ (__) dollars.
			2.	Total Roof System Guarantee:
	** NOTE TO SPECIFIER ** Insert guarantee duration.
				a.	Duration: ______ years.
	** NOTE TO SPECIFIER ** Select additional coverage. Retain only those required and delete others.
				b.	Coverage to be extended to include accidental punctures in accordance with terms stated in the Warranty document.
				c.	Coverage to be extended to include hail damage in accordance with terms stated in the Warranty document.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Versico, which is located at: P. O. Box 1289 ; Carlisle, PA 17013; Toll Free Tel: 800-992-7663; Fax: 717-960-4036; Email: request info; Web: www.versico.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	SCOPE / APPLICATION
		A.	Roof System: Provide a waterproof roof system, capable of withstanding uplift forces as specified in this section.
	** NOTE TO SPECIFIER ** Retain only attachment methods that apply to this project. Delete all others.
			1.	Membrane Attachment: Fully Adhered.
			2.	Membrane Attachment: Mechanically Attached.
			3.	Membrane Attachment: Ballasted.
		B.	Base Flashing: Provide a waterproof, fully adhered base flashing system at all penetrations, plane transitions and terminations.
	** NOTE TO SPECIFIER ** Delete the next paragraph if roof insulation is not specified.
		C.	Insulation: Provide a roof insulation system beneath the finish membrane.
	** NOTE TO SPECIFIER ** Delete the next article if insulation is not required. Retain only insulation type(s) required and delete all others.
	2.3	INSULATION
		A.	Polyisocyanurate MP-H: Rigid board with fiber reinforced facers on both sides, meeting or exceeding the requirements of ASTM C 1289. Versico MPH
			1.	Compressive Strength: 20 psi (138 kPa).
			2.	Density: 2 lb per cubic foot (24 kg/cu m) minimum.
		B.	SecurShield Polyiso: Rigid board with coated glass fiber mat facers on both sides, meeting or exceeding the requirements of ASTM C 1289.
			1.	Compressive Strength: 20 psi (138 kPa).
			2.	Density: 2 lb per cubic foot (24 kg/cu m) minimum.
		C.	Composite Board: Polyisocyanurate foam insulation with 1/2 inch (13 mm) wood fiber roof insulation laminated to one side and fiber reinforced facers laminated to one side, meeting or exceeding the requirements of ASTM C 1289. Versico MPH-WF.
			1.	Compressive Strength (Polyiso): 20 psi (138 kPa).
			2.	Compressive Strength (Wood Fiber): 35 psi (241.5 kPa).
			3.	Density (Polyiso): 2 lb per cubic foot (24 kg/cu m) minimum.
		D.	Composite Board: Polyisocyanurate foam insulation with 7/16 inch (11 mm) Oriented Strand Board (OSB) laminated to one side and fiber reinforced facers laminated to one side, meeting or exceeding the requirements of ASTM C 1289. Versico MPH Composite.
			1.	Compressive Strength (Polyiso): 20 psi (138 kPa).
			2.	Compressive Strength (Wood Fiber): 35 psi (241.5 kPa).
			3.	Density (Polyiso): 2 lb per cubic foot (24 kg/cu m) minimum.
		E.	Expanded Polystyrene (EPS): Rigid, closed cell foam insulation meeting ASTM C 578.
	** NOTE TO SPECIFIER ** Select Compressive strength based on insulation type. Delete three of the next four paragraphs.
			1.	Compressive Strength: Type I - 10 psi (0.7 kg/sq.cm.) min.
			2.	Compressive Strength: Type II - 15 psi (1.1 kg/sq.cm.) min.
			3.	Compressive Strength: Type VIII - 30 psi (2.1 kg/sq.cm.) min.
			4.	Compressive Strength: Type IX - 25 psi (1.75 kg/sq.cm.) min.
		F.	Extruded Polystyrene (XPS): Rigid, closed-cell structured thermal barrier meeting ASTM C 578. Foamular, distributed by Versico.
	** NOTE TO SPECIFIER ** Select insulation type. Delete five of the next six paragraphs.
			1.	Thermapink 18: Compressive Strength - 18 psi (1.27 kg/sq.cm.) minimum.
			2.	Thermapink 25: Compressive Strength - 25 psi (1.75 kg/sq.cm.) minimum.
			3.	Foamular 400: Compressive Strength - 40 psi (2.8 kg/sq.cm.) minimum.
			4.	Foamular 600: Compressive Strength - 60 psi (4.2 kg/sq.cm.) minimum.
			5.	Foamular 404: Compressive Strength - 40 psi (2.8 kg/sq.cm.) minimum.
			6.	Foamular 604: Compressive Strength - 60 psi (4.2 kg/sq.cm.) minimum.
		G.	Extruded Polystyrene (XPS): Rigid, closed-cell recovery board meeting ASTM C 578. Foamular Durapink, distributed by Versico.
	** NOTE TO SPECIFIER ** Select insulation type. Delete two of the next three paragraphs.
			1.	1 inch (25mm): Compressive Strength - 25 psi (1.75 kg/sq.cm.) minimum.
			2.	3/4 inch (19mm): Compressive Strength - 25 psi (1.75 kg/sq.cm.) minimum.
			3.	1/2 inch (13mm): Compressive Strength - 18 psi (1.27 kg/sq.cm.) minimum.
		H.	Extruded Polystyrene (XPS): Rigid, closed-cell structured thermal barrier meeting ASTM C 578. Dow Styrofoam, distributed by Versico.
	** NOTE TO SPECIFIER ** Select insulation type based on project requirements. Delete three of the next four paragraphs.
			1.	Deckmate: Compressive Strength - 18 psi (1.27 kg/sq.cm.) minimum.
			2.	Deckmate Plus: Compressive Strength - 25 psi (1.75 kg/sq.cm.) minimum.
		I.	Wood Fiber: Cellulose fiber board meeting the requirements of ASTM C 208.
	** NOTE TO SPECIFIER ** Select thickness. Delete one of the next two paragraphs.
			1.	Board Thickness: 1/2 inch (13 mm).
			2.	Board Thickness: 1 inch (25 mm).
		J.	Water-resistant and silicone treated gypsum panel with embedded fiberglass facer on both sides, and pre-primed on one side. GP Gypsum Dens-Deck Prime, distributed by Versico.
	** NOTE TO SPECIFIER ** Select thickness. Delete two of the next three paragraphs.
			1.	Board Thickness: 1/4 inch (6mm).
			2.	Board Thickness: 1/2 inch (13mm).
			3.	Board Thickness: 5/8 inch (15mm).
		K.	Water-resistant and silicone treated gypsum panel with embedded fiberglass facer on both sides. GP Gypsum Dens-Deck, distributed by Versico.
	** NOTE TO SPECIFIER ** Select thickness. Delete two of the next three paragraphs.
			1.	Board Thickness: 1/4 inch (6mm).
			2.	Board Thickness: 1/2 inch (13mm).
			3.	Board Thickness: 5/8 inch (15mm).
	** NOTE TO SPECIFIER ** Delete the entire next article if insulation adhesive is not required.
	2.4	INSULATION ADHESIVE
		A.	VersiGrip Insulation Adhesive: Single component, moisture-curing, polyurethane adhesive applied directly from its container in approximately 1/2 inch beads spaced a maximum 12 inches (305mm) on center to approved substrates.
	2.5	ETHYLENE, PROPYLENE, DIENE TERPOLYMER (EPDM) MEMBRANE
	** NOTE TO SPECIFIER ** Select membrane type(s) required on the project from the next three options, and delete all others not required. Modify the included text as instructed.
		A.	VersiGard Non-reinforced Membrane: Cured, non-reinforced EPDM membrane meeting the requirements of ASTM D 4637 Type I.
			1.	Color: Black.
	** NOTE TO SPECIFIER ** Select membrane thickness. Delete one of the next two paragraphs.
			2.	Membrane Thickness: 45 mil nominal.
			3.	Membrane Thickness: 60 mil nominal.
			4.	Sheet Dimensions:
				a.	Width: 50 feet (15.25 m) maximum.
				b.	Length: 100 feet (30.5 m) maximum.
			5.	Performance:
				a.	Tensile Strength: 1550 psi (10.7 MPa) minimum.
				b.	Tear Resistance: 200 lbf/in (35 kN/m) minimum.
				c.	Elongation: 480 percent.
		B.	VersiGard White Non-Reinforced Membrane: Cured, non-reinforced EPDM membrane meeting the requirements of ASTM D 4637 Type I.
			1.	Color: White on Black.
			2.	Membrane Thickness: 60 mil nominal.
			3.	Sheet Dimensions:
				a.	Width: 10 feet (3.05 m) maximum.
				b.	Length: 100 feet (30.5 m) maximum.
			4.	Performance:
				a.	Tensile Strength: 1685 psi (11.6 MPa) minimum.
				b.	Tear Resistance: 200 lbf/in (35 kN/m) minimum.
				c.	Elongation: 480 percent.
		C.	VersiGard Reinforced Membrane: Cured, polyester fabric reinforced EPDM membrane meeting the requirements of ASTM D 4637 Type II.
			1.	Color: Black.
	** NOTE TO SPECIFIER ** Select membrane thickness. Delete one of the next two paragraphs.
			2.	Membrane Thickness: 45 mil nominal / 0.016" (0.4mm) over scrim.
			3.	Membrane Thickness: 60 mil nominal / 0.020" (0.5mm) over scrim.
			4.	Sheet Dimensions:
	** NOTE TO SPECIFIER ** Select specified sheet width(s). Delete two of the next three paragraphs.
				a.	Width: 4.5 feet (1371 mm) maximum.
				b.	Width: 8 feet (1371 mm) maximum.
				c.	Width: 10 feet (1371 mm) maximum.
	** NOTE TO SPECIFIER ** Select maximum sheet length. 200 foot length only available with 45 mil, 10 foot wide rolls. Delete one of the next two paragraphs.
				d.	Length: 100 feet (30.5 m) maximum.
				e.	Length: 200 feet (30.5 m) maximum.
			5.	Performance:
				a.	Breaking Strength: 180 lbf (800 N) minimum.
				b.	Tear Strength: 30 lbf (132 N) minimum.
				c.	Elongation: 480 percent.
	2.6	FLASHING ACCESSORIES
		A.	Molded Pipe Seals:
			1.	VersiGard (Black) EPDM Molded Pipe Seals: A black, cured, premolded base flashing for pipes up to 6 inch (15.2 cm) in diameter installed with Seam Adhesive and In-Seam Sealant.
			2.	VersiGard (Black) or (White) QA Pipe Seals with adhesive tape pre-applied to the deck flange.
		B.	VersiGard Penetration Pocket: Pre-fabricated Pourable Sealer Pocket consisting of a 2 inch (51 mm) wide plastic support strip with pre-applied, adhesive backed uncured Elastoform Flashing.
		C.	VersiGard QA Inside/Outside Corner: A 7 inch by 9 inch (178 x 229 mm) precut 60-mil thick Elastoform Flashing with a 30-mil pre-applied adhesive tape. Available in black only.
		D.	VersiGard QA Coverstrip: A nominal 40-mil black, semi-cured EPDM membrane laminated to a nominal 30-mil cured, pre-applied adhesive tape for flashing gravel stops, metal edgings and Seam Fastening Plates.
		E.	VersiGard QA "T" Joint Covers: A factory cut 6 inch by 6 inch (152mm x 152mm) uncured 40-mil thick EPDM flashing laminated to a nominal 30-mil pre-applied adhesive tape, used to overlay field splice intersections and to cover field splices at angle changes.
		F.	VersiGard Clean Cured Flashing: A cleaned, cured .060 inch (1.5mm) thick non-reinforced (seamless) black EPDM membrane used to flash gravel stops, metal edgings, walls/curbs and Seam Fastening Plates used for additional membrane securement when the use of RTS is not feasible.
		G.	White Cured Flashing: A cured .060 inch (1.5 mm) thick non-reinforced (seamless) white-on-black EPDM membrane used to flash gravel stops, metal edgings, walls/curbs and Seam Fastening Plates used for additional membrane securement when the use of RTS is not feasible.
		H.	VersiGard Uncured EPDM Flashing: Formable 60-mil thick VersiGard uncured EPDM flashing.
		I.	VersiGard QA Uncured EPDM Flashing: 60-mil thick uncured EPDM Flashing laminated to a 30-mil pre-applied adhesive tape used in conjunction with VersiGard Primer as an option to VersiGard Uncured EPDM Flashing.
	** NOTE TO SPECIFIER ** Retain only products required on this project and delete all others.
	2.7	CLEANERS, PRIMERS, ADHESIVES AND SEALANTS
		A.	Seam Adhesive: A high-strength, butyl-based contact cement which is used for splicing adjoining sections of EPDM membrane (cured or uncured).
			1.	VersiGard Seam Adhesive: Black seam adhesive for use with VersiGard (black) Roofing Systems.
			2.	VersiGard White Adhesive: White seam adhesive used with White (white-on-black) Adhered Roofing Systems.
		B.	In Seam Sealant 1124: A one-part, gun-consistency sealant applied in adhesive seams between cured VersiGard EPDM membrane sections.
		C.	Lap Sealant: A black, heavy-bodied material (trowel or gun-consistency) used to seal the exposed edges of a membrane splice. A pre-formed Lap Sealant tool is included in each carton of Lap Sealant.
			1.	VersiGard Lap Sealant: Black sealant for use with VersiGard Roofing Systems.
			2.	White Lap Sealant: White sealant for use with White Roofing Systems.
		D.	VersiGard QA Seam Tape: 3 inch (76mm) or 6 inch (152mm) wide by 100 foot (30.5 M) long splice tape used for splicing adjoining sections of EPDM membrane. Complies with the South Coast Air Quality Management District Rule 1168.
		E.	VersiGard White QA Seam Tape: A 3 inch (76mm) wide by 100 foot (30.5 M) long, cream colored splice tape used with White Systems. Complies with the South Coast Air Quality Management District Rule 1168.
		F.	VersiGard V-150 Primer: A solvent-based primer used to prepare the surface of EPDM membrane for application of Seam Tape or QA products.
		G.	VersiGard LV-600 Primer: A low VOC (volatile organic compound) primer (less than 250 grams/liter) for use with Seam Tape or QA products. Complies with the South Coast Air Quality Management District Rule 1168.
		H.	VersiGard Substrate Adhesive: A high-strength, yellow colored, synthetic rubber adhesive used for bonding VersiGard EPDM membranes to various surfaces.
		I.	Water Cut-Off Mastic: A one-component, low viscosity, self wetting, Butyl blend mastic used as a sealing agent between EPDM membranes or uncured flashing and applicable substrates.
		J.	VersiGard V-400 Pourable Sealer: A black, two-component, solvent-free, polyurethane based product used for tie-ins and as a sealant around hard-to-flash membrane penetrating objects such as clusters of pipes and for a daily seal when the completion of flashings and terminations cannot be completed by the end of each work day.
		K.	Universal Single-Ply Sealant: A 100 percent solids, solvent free, one-part, polyether sealant that provides a weather tight sealant to a variety of building substrates; used as a termination bar sealant. Available in white only.
		L.	Versico Weathered Membrane Cleaner: Clear, solvent-based cleaner used to loosen and remove contaminants from the surface of exposed EPDM membrane prior to applying VersiGard Seam Cleaner or Primer.
	** NOTE TO SPECIFIER ** Retain the next article only if insulation is asphalt adhered.
	2.8	BITUMEN
		A.	Hot Asphalt: Meets or exceeds requirements of ASTM D 312:
	** NOTE TO SPECIFIER ** Select required asphalt type. Delete two of the next three paragraphs.
			1.	Type: Type III
			2.	Type: IV
			3.	Type: SEBS
		B.	Cut-Back Asphalt Primer: ASTM D 41 primer for structural concrete decks, existing smooth BUR, mineral surfaced cap sheet, or modified bitumen membranes prior to mopping.
	2.9	FASTENING COMPONENTS
	** NOTE TO SPECIFIER ** Retain only fastening components required on this project and delete all others.
		A.	RTS (Reinforced Termination Strip): A 6 or 9 inch wide, 100 foot long, strip of VersiGard (Black) reinforced EPDM membrane.
			1.	6" wide standard RTS: used horizontally or vertically at the base of walls, curbs, etc., in conjunction with 2 inch diameter Fastening Plates below the EPDM deck membrane for additional membrane securement (Polymer Seam Plates are required for Mechanically Attached Roofing Systems over steel decks). 6 inch wide standard RTS is also utilized for perimeter membrane securement on VersiGard Mechanically Attached Roofing Systems.
			2.	9" wide standard RTS: utilized in conjunction with gravel stops and metal edgings to allow continuation of cured EPDM deck membrane as flashing. 9 inch wide RTS is utilized for perimeter membrane securement on VersiGard Mechanically Attached Roofing Systems.
		B.	VersiGard QA RTS (Reinforced Termination Strip): 6 or 9 inch wide, nominal 45-mil thick clean, cured, reinforced EPDM black membrane with 3 inch wide pre-applied adhesive tape laminated along one edge for the 6 inch wide RTS and along both edges for the 9 inch wide RTS. 9 inch wide QA RTS is utilized for perimeter membrane securement on VersiGard Mechanically Attached Roofing Systems.
		C.	TPO (white)/EPDM QA RTS: A 6 inch (152 mm) wide, nominal .045 inch (1.1 mm) thick reinforced TPO membrane with 3 inch (76 mm) wide pre-applied adhesive tape laminated along one edge. Used for perimeter membrane securement on White Adhered Roofing Systems.
		D.	Polymer Seam Plate: 2 inch (51mm) diameter plastic barbed fastening plate used for membrane and RTS securement for Mechanically Attached Roofing Systems over steel roof decks.
		E.	Seam Fastening Plate: 2 inch (51 mm) diameter metal fastening plate used for membrane and RTS attachment on Mechanically Attached Roofing Systems over wood or structural concrete decks. Seam Fastening Plates are also used in conjunction with RTS or EPDM membrane for additional membrane securement on Adhered or Ballasted Roofing Systems. This plate may be used for insulation attachment on Mechanically Attached Roofing Systems.
		F.	Insulation Fastening Plate: Nominal 3 inch (76 mm) diameter FM approved metal plate used for insulation attachment.
		G.	Deck Tite Fastening Bar: 1 inch by .040 inch by 10 foot long (25mm x 1mm x 3048mm) gavalume-coated steel fastening bar used for membrane securement on Mechanically Attached Roofing Systems.
		H.	Versico Fasteners:
			1.	HPV Fastener: A threaded, black epoxy electro-deposition coated (E-Coat) fastener for use with steel, wood plank, minimum 15/32 inch (12mm) thick plywood or minimum 7/16" thick oriented strand board (Adhered Roofing Systems only).
			2.	InsulTite Insulation Fasteners: A threaded, Phillips head fastener used with 3 inch (76mm) diameter Insulation Plates. For insulation attachment into steel or wood decks.
			3.	InsulTite ASAP Fasteners: Versico's #12 Standard Fastener and pre-assembled 3 inch (76mm) diameter Plastic Insulation Plate used for insulation attachment on Adhered and Mechanically Attached Roofing Systems.
			4.	Sure-Tite Fasteners: A nominal .033 inch (0.8mm) diameter fastener with a #3 Phillips head used for membrane securement on Mechanically Attached Roofing Systems in conjunction with Deck-Tite Fastening Bars.
			5.	CD-10 Concrete Fastener: A hammer-driven, non-threaded, black epoxy electro-deposition coated (E-Coat) fastener for use with structural concrete decks rated 3,000 psi or greater.
			6.	MP 14-10 Concrete Fastener: A #14 threaded fastener used for minimum 3,000 psi concrete decks.
			7.	NTB Fastener: A non-penetrating, plastic fastener and plate used for cementitious wood fiber and gypsum decks.
			8.	Lite-Deck Fastener: An oversized diameter metal fastener and associated 3 inch diameter Lite-Deck metal plate for use on Adhered Roofing Systems to attach insulation to dense gypsum decks.
			9.	HPVX Fasteners: A heavy-duty #15 threaded fastener with a Phillips head used for adhered assemblies where increased pullout resistance is necessary for steel and wood decks.
			10.	Term Bar Nail-In: A 1 1/4 inch (32mm) long expansion anchor with threaded drive pin used for fastening VersiGard Termination Bar or Seam Fastening Plates to concrete, brick or block walls.
	2.10	EDGINGS AND TERMINATIONS
		A.	VersiTrim 200: A snap-on edge system consisting of a 24 gauge galvanized metal water dam. Finish as noted on the Finish Schedule of the Contract Drawings.
		B.	VersiTrim Fascia: A metal anchor bar fascia system consisting of a formed quarter hard 0.050 inch (1.25 mm) aluminum retainer bar, corrosion resistant fasteners and a 0.040 inch (1 mm) aluminum or 24 gauge steel snap-on fascia cover.
		C.	VersiTrim 2000: An anchor bar roof edge fascia system consisting of 0.100 inch (2.5 mm) thick extruded aluminum bar, corrosion resistant stainless steel fasteners and snap-on fascia cover.
		D.	VersiTrim Drip Edge: A 22 gauge pre-punched 90-degree angle cleat and 12 foot long fascia sections. Kynar 500 or aluminum finish as noted on the Finish Schedule of the Contract Drawings.
		E.	VersiTrim Coping: An anchor cleat with pre-slotted holes, a concealed joint cover, and 10 or 12 foot sections of coping cap. Kynar 500 finish as noted on the Finish Schedule of the Contract Drawings.
		F.	VersiGard Ballast Retaining Bar: A ballast retaining perimeter securement system comprised of a slotted extruded aluminum retention bar with integrated compression fastening strip.
		G.	Termination Bar: 1 inch (13 mm) wide, .098 inch (2.5mm) thick extruded aluminum bar pre-punched 6 inches (152 mm) on center with sealant ledge to support Lap Sealant.
	** NOTE TO SPECIFIER ** Select ballast where ballast applied system is specified. Retain only ballast type(s) required on this project and delete all others. Delete the entire article if not required.
	2.11	BALLAST
		A.	Rounded Water-Worn Gravel:
	** NOTE TO SPECIFIER ** Select ballast size. Delete one of the next two paragraphs.
			1.	Nominal 1 1/2 inch (38 mm) rounded water-worn gravel which conforms to gradation #4 when sized in accordance with ASTM D 448 method of sizing. Coverage rate shall be no less than 1000 pounds per 100 square feet and gravel must be evenly distributed to maintain an average of 10 pounds per square foot.
			2.	Nominal 2 1/2 inch (64 mm) rounded water-worn gravel which conforms to gradation #1 or #2 when sized in accordance with ASTM D 448 method of sizing. Coverage rate shall be no less than 1300 pounds per 100 square feet and gravel must be evenly distributed to maintain an average of 13 pounds per square foot.
		B.	Crushed Stone:
			1.	Conform to the gradations noted for rounded water-worn gravel and must be installed in conjunction with MP Safeguard Mat.
		C.	Individual Concrete Pavers:
	** NOTE TO SPECIFIER ** Select ballast size. Delete one of the next two paragraphs.
			1.	Individual pavers weighing a minimum of 18 pounds (8.16 kg) per square foot may be substituted for nominal 1 1/2 inch (38 mm) stone.
			2.	Individual pavers weighing a minimum of 22 pounds (10 kg) per square foot may be substituted for nominal 2 1/2 inch (64 mm) stone.
			3.	Pavers must be a maximum of two feet square. Unless otherwise required by Versico, pavers must weigh no more than 80 pounds per unit to allow for easy removal and replacement.
			4.	Individual pavers with a surface other than a steel trowel finish as approved by Versico, must be installed over Versico MP Safeguard Mat and must be accepted by Versico prior to installation.
			5.	Pavers must be loose laid and butted together with no gaps greater than 1/2 inch (13 mm).
	** NOTE TO SPECIFIER ** Elevating pavers on pedestals may increase life expectancy, reduce freeze/thaw effects and promote more positive drainage.
			6.	Install Pavers over 4 inch by 4 inch (102mm x 102mm)sections of Versico Walkway Rolls or approved pedestals.
		D.	Lightweight Interlocking Pavers
			1.	Upon approval by the membrane manufacturer, lightweight interlocking pavers, minimum 10 pounds (4.5 kg) per square foot may be substituted for nominal 1 1/2 inch or 2 1/2 inch stone and must be installed over MP Safeguard Mat or the paver manufacturer's recommended matting.
	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.
	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.
		C.	Do not commence Work until all other work trades have completed jobs that require them to traverse the deck on foot or with equipment.
		D.	A vapor retarder / temporary roof may be applied to protect the inside of the structure prior to the roof system installation.
	** NOTE TO SPECIFIER ** Retain only deck types found on this project. Delete roof deck(s) not required.
	3.3	SUBSTRATE PREPARATION
		A.	Structural Concrete Deck:
			1.	Minimum deck thickness for structural concrete is 4 inches (102 mm).
			2.	Allow roof deck to cure prior to application of the roofing system. Where curing is in question, evaluate surface moisture and deck's dryness with the ASTM D-4263 or hot bitumen test procedures.
			3.	Repair cracks greater than 1/8 inch (3 mm) in width in accordance with the deck manufacturer's recommendations.
			4.	Sumps for the roof drains shall be provided in the casting of the deck.
			5.	Where insulation is to be adhered with hot asphalt, prime the deck with asphalt/concrete primer, ASTM D 41 at the rate of one gallon per 100 square feet (0.4 l/sm). Allow the primer to dry prior to the application of the roofing system.
		B.	Steel Deck:
			1.	Metal decks shall be a minimum uncoated thickness of 22 gauge and have a G-90 galvanized finish on all panels.
			2.	Decks must comply with the gauge and span requirements in the current Factory Mutual Approval Guide and be installed in accordance with Loss Prevention Data Sheet 1-28 or specific FM approval.
			3.	Remove any surface corrosion and repair to severely corroded areas. Properly fasten loose or inadequately secured decking.
		C.	Wood Deck (Plank / Heavy Timber):
			1.	Wood boards shall be at least 1 inch (25 mm) nominal thickness and have a nominal width of 4 feet-6 inches (1372 mm).
			2.	All boards shall have a bearing on rafters at each end and be securely nailed.
			3.	Cover knotholes or cracks in excess of 1/4 inch (6 mm) with securely nailed sheet metal.
		D.	Wood Deck (Plywood Deck):
			1.	Plywood sheathing shall be CDX grade, minimum 4 ply, and not less than 15/32 inch (12 mm) thick.
			2.	Install deck over joists spaced 24 inches (610 mm) o.c. or less. Install deck with all sides bearing on and are secured to joist and cross blocking.
		E.	Cementitious Wood Fiber:
			1.	Decks shall be protected from the weather during storage and application; any wet or deformed decking shall be removed and replaced.
			2.	Anchor all panels against uplift and lateral movement.
			3.	Install deck level. Any deflection, irregularities, or otherwise damaged panels must be corrected or replaced.
		F.	Lightweight Insulating Concrete Deck:
			1.	Lightweight insulating concrete decks are required to have a minimum thickness of 2 inches (51 mm), a minimum compressive strength of 125 psi (0.86 MPa) and a minimum density of 22 pcf (352 kg/sm).
			2.	Moisture content of existing Lightweight concrete must be under 20 percent when insulation is to be fastened directly to it.
	** NOTE TO SPECIFIER ** Insert project specific information regarding insulation types and attachment. Add or remove layers as necessary, or delete the entire article if not required.
	3.4	INSULATION - SYSTEM DESIGN
		A.	Base Layer:
			1.	Type: ____________.
			2.	Thickness: ______ inches (___ mm).
			3.	Attachment Method: _____.
		B.	Top Layer:
			1.	Type: ____________.
			2.	Thickness: ______ inches (___ mm).
			3.	Attachment Method: _____.
		C.	Tapered System:
			1.	Type: ____________.
			2.	Field Slope: ____ inch per foot.
			3.	Sump Slope: ____ inch per foot.
			4.	Cricket Slope: ____ inch per foot.
			5.	Attachment Method: _____.
	3.5	INSULATION PLACEMENT
		A.	Install insulation or membrane underlayment over the substrate with boards butted tightly together with no joints or gaps greater than 1/4 inch (6 mm). Stagger joints both horizontally and vertically if multiple layers are provided.
	** NOTE TO SPECIFIER ** Delete the next paragraph if a Ballast Applied system is specified.
		B.	Secure insulation to the substrate with the required mechanical fasteners or adhesive in accordance with the manufacturer's current application guidelines.
		C.	Do not install wet, damaged or warped insulation boards.
		D.	Staggered joints in one direction unless joints are to be taped. Install insulation boards snug. Gaps between board joints shall not exceed 1/4 inch (6 mm). Fill all gaps in excess of 1/4 inch (6 mm) with same insulation material.
		E.	Wood nailers must be at least 3 1/2 inches (89 mm) wide or 1 inch (25 mm) wider than adjacent metal flange. Thickness must equal that of insulation but not less than 1 inch (25 mm) thickness.
		F.	Miter and fill the edges of the insulation boards at ridges, valleys and other changes in plane to prevent open joints or irregular surfaces. Avoid breaking or crushing of the insulation at the corners.
		G.	Do not install any more insulation than will be completely waterproofed each day.
	3.6	INSULATION ATTACHMENT
	** NOTE TO SPECIFIER ** Delete the next paragraph if a Ballast Applied system is specified.
		A.	Securely attach insulation to the roof deck. A minimum FM 1-60 attachment is recommended.
	** NOTE TO SPECIFIER ** Delete the next paragraph if a Ballast Applied or Mechanically Attached system is specified. FM Loss Prevention Data Sheet 1-29 no longer uses 50 and 75 percent increased fastener density in perimeter and corner areas for assemblies above FM 1-75.
		B.	Enhance the perimeter and corner areas in accordance with FM Loss Prevention Data Sheet 1-29.
	** NOTE TO SPECIFIER ** Delete the next paragraph if asphalt applied insulation is not specified
		C.	Install insulation layers, maximum 4 feet by 4 feet (1220 mm by 1220 mm) board size, in a full and uniform mopping of hot asphalt applied at the rate of 25 lb/square (1.2 kg/sm). Stagger the joints of additional layers in relation to the insulation joints in the layer(s) below by a minimum of 6 inches (152 mm).
	** NOTE TO SPECIFIER ** Delete the next paragraph if adhesive applied insulation is not specified
		D.	Install insulation layers applied with adhesive, coverage rate as necessary to achieve the specified attachment and uplift rating. Press each board firmly into place. Stagger the joints of additional layers by a minimum of 6 inches (152 mm).
	** NOTE TO SPECIFIER ** Delete the next paragraph if a Ballast Applied system is not specified.
		E.	Loose lay insulation for ballast attachment. Where necessary, minimal fastening may be performed to inhibit movement. Fastening plates will require an overlayment of small sections of Reinforced VersiGard EPDM membrane in conjunction with Lap Sealant to cover the fastener head and insulation fastening plate.
	** NOTE TO SPECIFIER ** Retain the next article ONLY if membrane is FULLY ADHERED
	3.7	MEMBRANE PLACEMENT AND ATTACHMENT (Fully Adhered)
		A.	Unroll and position membrane without stretching. Allow the membrane to relax for approximately 1/2 hour before bonding. Fold the sheet back onto itself so half the underside of the membrane is exposed.
		B.	Apply the Bonding Adhesive in accordance with the manufacturer's published instructions, to both the underside of the membrane and the substrate. Allow the adhesive to dry until it is tacky but will not string or stick to a dry finger touch.
		C.	Roll the coated membrane into the coated substrate while avoiding wrinkles. Brush down the bonded half of the membrane sheet with a soft bristle push broom to achieve maximum contact.
		D.	Fold back the unbonded half of the membrane sheet and repeat the bonding procedure.
		E.	Install adjoining membrane sheets in the same manner, overlapping edges appropriately to provide for the minimum splice width. It is recommended that all splices be shingled to avoid bucking of water.
	** NOTE TO SPECIFIER ** Retain the next article if ONLY if membrane is MECHANICALLY ATTACHED.
	3.8	MEMBRANE PLACEMENT AND ATTACHMENT (Mechanically Attached)
		A.	Unroll and position membrane without stretching. Allow the membrane to relax for approximately 1/2 hour prior to attachment. Provide and secure both perimeter and field membrane sheets in accordance with the manufacturer's most current specifications and details.
		B.	Secure the membrane along the pre-printed blue line approximately 3 inches (76 mm) from the edge of the membrane sheet with the required VersiGard Fastener and 2 inch (51 mm) Polymer Seam Plate spaced a maximum of 12 inches (305 mm) on center. The minimum distance between the edge of the fastening plate and the edge of the membrane must be 2 inches (51 mm).
		C.	Position adjoining field membrane sheets to allow a minimum overlap of 6 inches at locations where Fastening Plates are located (along the length of the membrane); at the same time overlap end roll sections (width of the membrane) a minimum of 3 inches.
	** NOTE TO SPECIFIER ** Retain the next article if ONLY if membrane is BALLAST APPLIED.
	3.9	MEMBRANE PLACEMENT AND ATTACHMENT (Ballast Applied)
		A.	Unroll and position membrane without stretching. Allow the membrane to relax for approximately 1/2 hour prior to splicing.
		B.	Install adjoining membrane sheets in the same manner, overlapping edges appropriately to provide for the minimum splice width. It is recommended that all splices be shingled to avoid bucking of water.
	** NOTE TO SPECIFIER ** Delete the next paragraph if Adhesive spliced seams are not specified
	3.10	MEMBRANE SPLICING (Adhesive Splice)
		A.	Fold the top sheet back and clean the dry splice area (minimum 3 inches wide) of both membrane sheets by wiping with a clean rag.
		B.	Apply Primer to the mating surfaces with a scrub pad, at a rate of approximately 450 square feet per gallon for a 3 inch wide seam, and allow to dry.
		C.	Apply Seam Adhesive and In-Seam Sealant in accordance with the manufacturer's current application guidelines, and roll the top sheet onto the mating surface.
		D.	Roll the splice with a 2 inch wide steel roller and wait at least 2 hours before applying Lap Sealant to the splice edge following the manufacturer's requirements.
		E.	Field splices without In-Seam Sealant must be overlaid with uncured flashing.
	** NOTE TO SPECIFIER ** Delete the next paragraph if taped seams are not specified
	3.11	MEMBRANE SPLICING (Tape Splice)
		A.	Overlap adjacent sheets and mark a line 1/2 inch out from the top sheet.
		B.	Fold the top sheet back and clean the dry splice area a minimum of 3 inches (76 mm) on both membrane sheets.
		C.	Apply Primer to the mating surfaces with a scrub pad, at a rate of approximately 450 square feet per gallon for a 3 inch wide seam, and allow to dry.
		D.	Apply 3 inch wide Seam Tape to bottom sheet with the edge of the release film along the marked line. Press tape onto the sheet using hand pressure. Overlap tape roll ends a minimum of 1 inch (13mm).
		E.	Remove the release film and press the top sheet onto the tape using hand pressure.
		F.	Roll the seam toward the splice edge with a 2 inch (51 mm) wide steel roller.
		G.	Install QA "T" Joint Cover, a 6 inch wide (152 mm) section of VersiGard QA Flashing or VersiGard Non-QA Flashing over all field splice intersections. When using Non-QA Flashing, seal edges of flashing with Lap Sealant.
		H.	The use of Lap Sealant with tape splices is optional except at tape overlaps and cut edges of reinforced membrane where Lap Sealant is required.
	3.12	FLASHING
		A.	Wall and curb flashing shall be cured EPDM membrane. Continue the deck membrane as wall flashing where practicable.
		B.	Follow manufacturer's typical flashing procedures for all wall, curb, and penetration flashing including metal edging/coping and roof drain applications.
	** NOTE TO SPECIFIER ** Delete the next article if a ballast applied system is not specified.
	3.13	BALLASTING
		A.	Install ballast in accordance with the manufacturer's installation instructions.
		B.	Install ballast evenly without bare spots to provide complete coverage over the membrane.
		C.	When specified, overlap MP Safeguard Mat a minimum of 6 inches prior to ballast or paver installation.
		D.	Comply with published ANSI (American National Standards Institute) ANSI/SPRI RP-4 guidelines (dated November 19, 2002) concerning applicable coverage rates.
	3.14	WALKWAYS
		A.	Install walkways at all traffic concentration points (such as roof hatches, access doors, rooftop ladders, etc.) and all locations as identified on the Contract Drawings.
		B.	Adhere walkways pads to the EPDM membrane in accordance with the manufacturer's current application guidelines.
	3.15	DAILY SEALS
		A.	On phased roofing, when the completion of flashings and terminations is not achieved by the end of the work day, a daily seal must be performed to temporarily close the membrane to prevent water infiltration.
		B.	Use Pourable Sealer or other acceptable membrane seal in accordance with the manufacturer's requirements.
	3.16	CLEAN UP
		A.	Perform daily clean-up to collect all wrappings, empty containers, paper, and other debris from the project site. Upon completion, all debris must be disposed of in a legally acceptable manner.
		B.	Prior to the manufacturer's inspection for warranty, the applicator must perform a pre-inspection to review all work and to verify all flashing has been completed as well as the application of all caulking.
	3.17	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION