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	SECTION 07810
	CEMENTITIOUS FIREPROOFING
	** NOTE TO SPECIFIER ** W.R. Grace and Company; Cementitious Fireproofing. . This section is based on the products of W.R. Grace and Company, which is located at: 62 Whittemore Avenue. Cambridge, MA 02140. Tel: (866) 333-3726. Fax: (617) 498-4311. Email: erin.m.downing@grace.com www.na.graceconstruction.com. . Grace Construction Products offers a wide range of innovative specialty construction chemicals and materials that includes: concrete admixtures and fibers, liquid pigments for colored concrete, cement processing additives, concrete masonry products, air and vapor barriers, roofing underlayments, self-adhered window, door and deck flashings, structural waterproofing systems and fire protection products. As a worldwide leader in the construction products industry, Grace products are specified by architects and engineers and are used by contractors, ready mix, precast and block producers, cement manufacturers to enhance the durability, strength and appearance of structures found in many major construction projects. Many of the world's most challenging building problems have been solved by Grace's premium construction chemicals and building materials.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
		A.	Cementitious Fireproofing and Related Work.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 03100 - Concrete Formwork.
		B.	Section 03300 - Cast-In-Place Concrete.
		C.	Section 05100 - Structural Metal Framing.
		D.	Section 05300 - Metal Decking.
		E.	Section 07220 - Roof Deck Insulation.
	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 E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
			2.	ASTM E 119 - Standard Methods of Fire Tests of Building Construction and Materials.
			3.	ASTM E 605 - Standard Test Methods for Thickness and Density of Sprayed Fire-Resistive Material Applied to Structural Members.
			4.	ASTM E 736 - Standard Test Method for Cohesion/Adhesion of Sprayed Fire-Resistive Material Applied to Structural Members.
			5.	ASTM E 759 - Standard Test Method for Effect of Deflection on Sprayed Fire-Resistive Material Applied to Structural Members.
			6.	ASTM E 760 - Standard Test Method for Effect of Impact on Bonding of Sprayed Fire-Resistive Material Applied to Structural Members.
			7.	ASTM E 761 - Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members.
			8.	ASTM E 859 - Standard Test Method for Air Erosion of Sprayed Fire-Resistive Material Applied to Structural Members.
			9.	ASTM E 937 - Standard Test Method for Corrosion of Steel by Sprayed Fire-Resistive Material Applied to Structural Members.
			10.	ASTM E 1354 - Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter.
			11.	ASTM G 21 - Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi.
		B.	Bureau of Building Inspection: City of San Francisco:
			1.	Abrasion Resistance Test Method.
			2.	Impact Penetration Test Method.
		C.	Underwriters Laboratories Inc. (UL) Fire Resistance Directory (Latest Edition).
		D.	Uniform Building Code (UBC):
			1.	Standard No. 7-6 - Thickness and Density Determination for Spray Applied Fireproofing
			2.	Standard No. 7-7 - Methods for Calculating Fire Resistance of Steel, Concrete and Wood Construction.
		E.	Association of the Wall and Ceiling Industries (AWCI):
			1.	AWCI Technical Manual 12-A: Standard Practice for the Testing and Inspection of Spray Applied Fire-Resistive Materials.
			2.	AWCI Technical Manual 12: Design Selection Utilizing Spray Applied Fire-Resistive Materials.
	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.	Shop Drawings: Submit manufacturer's approved drawings for all applicable construction details.
		D.	Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: Cementitious fireproofing shall be manufactured and marketed by a single firm with a minimum of twenty (20) years experience in the production and sales of cementitious fireproofing. Manufacturers proposed for use but not named in these specifications shall submit evidence of ability to meet all requirements specified, and include a list of projects of similar design and complexity completed within the past 5 years.
		B.	Installer Qualifications: A firm which has at least three (3) years experience in work of the type required by this section.
		C.	Material Performance:
			1.	Fire Testing: Submit evidence that the cementitious fireproofing has been subjected to full-scale ASTM E119 fire testing at Underwriters Laboratories Inc. by the manufacturer.
			2.	Thickness Schedule: Provide schedule indicating material to be used, building elements to be protected with spray applied fireproofing, hourly rating and material thickness provided and appropriate references.
			3.	Test Data: Upon request, provide supporting documentation from an independent laboratory attesting to performance results listed in this section.
	** 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.
		D.	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, and sheen are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
		E.	Pre-Installation Conference: Hold a pre-installation conference prior to commencement of field operations to establish procedures to maintain optimum working conditions and to coordinate this work with related and adjacent work. Agenda for meeting will include review of special details and flashing.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
	1.7	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.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Grace Construction Products, which is located at: 62 Whittemore Ave. ; Cambridge, MA 02140-1623; Toll Free Tel: 866-333-3726; Tel: 617-876-1400; Fax: 617-498-4311; Email: request info; Web: www.na.graceconstruction.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	CEMENTITIOUS FIREPROOFING
	NOTE TO SPECIFIER: Monokote MK-6/HY and MK-6s afford the same level of fire protection at identical protection thicknesses. Both MK-6/HY and MK-6s meet or exceed all performance criteria listed in this specification. By simply specifying "Monokote MK-6," the fireproofing subcontractor can select the product that will provide the most efficient fire protection for the specific project conditions. Both MK-6/HY and MK-6s can be used on flat plate cellular decking. Where cellular decking is present, include a requirement in Section 2.03 (Accessories) for Spatterkote SK-3.
		A.	Monokote MK-6 factory-blended cementitious fireproofing meeting the following physical performance standards:
			1.	Minimum Dry Density (ASTM E 605): As required by the manufacturer and listed in the UL Fire Resistance Directory for each rating indicated, ICBO Evaluation Report, as required by the authority having jurisdiction, or minimum average 240 kg/cubic meter (15 pcf), whichever is greater.
			2.	Deflection (ASTM E 759): No cracking or surface delamination.
			3.	Bond Impact (ASTM E 760): No cracking or surface delamination.
			4.	Bond Strength (ASTM E 736): Minimum average bond strength of 9.6 KPa (200 psf) and a minimum individual bond strength of 7.2 KPa (150 psf).
			5.	Air Erosion (ASTM E 859): 0.05 g/sm (.005 g/sqft) Maximum Allowable Weight Loss. Sample surface "as applied" (not pre-purged) and the total measured as total weight loss over a 24 hour period.
			6.	High Speed Air Erosion (ASTM E 859) for materials to be used in plenums or ducts: No continued erosion after 4 hours at an air speed of 12.7 m/s, 47 km/h, 2500 ft/min, 29 mph.
			7.	Compressive Strength (ASTM E 761): Max deformation of 10 percent when subjected to compressive forces of 57 KPa (1200 psf).
			8.	Corrosion Resistance (ASTM E 937): Fireproofing applied shall not promote corrosion of steel.
			9.	Abrasion Resistance: Less than 15cc removed from the fireproofing substrate when tested in accordance with the test methods developed by the City of San Francisco, Bureau of Building Inspection.
			10.	Impact Penetration: Less than 6 cc when subjected to impact penetration tests in accordance with the test methods developed by the City of San Francisco, Bureau of Building Inspection.
			11.	Surface Burning Characteristics (ASTM E 84):
				a.	Flame Spread-0
				b.	Smoke Developed-0.
			12.	Resistance to Mold (ASTM G 21): Manufactured with a mold inhibitor and shows resistance to mold growth for a period of 28 days for general use.
			13.	Combustibility (ASTM E 1354) Tested horizontally:
				a.	Maximum total heat release of 20 MJ/sm,
				b.	Maximum 125 kw/sm peak rate of heat release 600 seconds after insertion,
				c.	Radiant heat flux of 75 kw/m2 with the use of electric spark ignition.
	** NOTE TO SPECIFIER ** Laboratory fire tests (ASTM E119) do not measure in-place durability during the design life of the building. For example, the work of other trades or air movement in return air plenums can affect the ability of the fireproofing to remain intact on the steel for the life of a building. The physical performance criteria recommended above establish minimum levels of acceptable in-place performance for structural steel fire protection. Performance criteria include resistance to damage, bond strength, air erosion and mold resistance protection. Monokote MK-6 meets or exceeds these recognized performance standards for long term fire protection of steel structures.
		B.	Fire Resistance Classification (ASTM E119): Tested and reported by Underwriters Laboratories Inc and listed in the Underwriters Laboratories Fire Resistance Directory.
		C.	Mixing Water: Clean, fresh, and suitable for domestic consumption and free from such amounts of mineral or organic substances as would affect the set of the fireproofing material. Provide water with sufficient pressure and volume to meet the fireproofing application schedule.
	2.3	ACCESSORIES
		A.	Provide accessories to comply with manufacturer's recommendations and to meet fire resistance design and code requirements. Such accessories include, but are not limited to, any required or optional items such as Spatterkote SK-3; bonding agents, mechanical attachments; application aids such as metal lath, scrim, or netting; and Monokote Accelerator.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	Remove oil, grease, paints/primers, loose mill scale, dirt or other foreign substances which may impair proper adhesion of the fireproofing to the substrate.
		C.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
		D.	Do not apply fireproofing until the Architect, applicator and fireproofing testing laboratory's agent have examined surfaces to receive fireproofing and determined that the surfaces are acceptable to receive the fireproofing material.
	NOTE TO SPECIFIER: Primed/painted Substrates: Fireproofing obtains its maximum bond strength when applied to bare, unprimed structural steel. Priming of interior structural steel is generally unnecessary, adds to the cost of the structure and may adversely affect the fire resistance rating and the bond of the fireproofing to the substrate. We recommend the following be added to the structural steel specification: "Interior structural steel to receive application of spray applied fireproofing shall be free of primer and paint coatings." Where members are to be exposed to a corrosive environment or exterior applications, a primer coating must be applied prior to the fireproofing to protect the underlying structural steel. The use of primer coatings with fireproofing is detailed in the UL Fire Resistance Directory and may require the use of bonding agents or mechanical attachment on beams, columns, tube and pipe steel to maintain the fire-resistive rating. The coating supplier should also certify the compatibility of the primer with portland cement based fireproofing. An on-site mock-up and bond test shall be performed on all unknown or un tested coatings prior to application of fireproofing to determine compatibility. ** NOTE TO SPECIFIER ** Metal Decking: Rolling compounds or lubricants are commonly used in the manufacturing of steel decking. These compounds may impair proper bonding of fireproofing to the substrate. Lubricants are available which, when use d in the appropriate quantities, will not adversely affect the bond of the fireproofing to the steel deck. The direct application of spray applied fireproofing is only permitted on UL classified painted steel decks. Classification is achieved by prior large-scale fire testing at UL with the specified fireproofing material. Mechanical attachment is required on unclassified painted steel decks to maintain the fire-resistive rating. The use of painted steel decks is detailed in the UL Fire Resistance Directory under Steel ** NOTE TO SPECIFIER ** Floor and Form Units (CHWX): We recommend that Section 05300 Metal Decking states: Steel deck manufacturer shall supply deck fire of lubricants or oils which would impair the adhesion of the spray applied fireproofing. The deck manufacturer shall certify that the primed steel deck is UL classified and has been fire tested with the appropriate fireproofing material."
	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.	Prior to application of the fireproofing material over concrete, apply a bonding agent approved by the fireproofing material manufacturer.
		D.	Clips, hangers, support sleeves and other attachments required to penetrate the fireproofing, must be in place prior to application of the fireproofing materials.
		E.	Ducts, piping, equipment or other suspended items are not to be installed until the fireproofing is complete.
		F.	Complete placing of concrete on floor and roof decking prior to application of the fireproofing to the underside of steel deck and supporting beams and joists.
		G.	On roof decks without a concrete cover, complete all roofing applications and roof mounted equipment installation prior to application of the fireproofing to the underside of roof decking and supporting beams and joists. Prohibit all roof traffic upon commencement of the fireproofing and until the fireproofing material is dry.
	3.3	FIREPROOFING APPLICATION
		A.	Follow the material manufacturer's application instructions for guidelines on equipment and application procedures. Post appropriate cautionary "Slippery When Wet" signs in all areas in contact with wet fireproofing material. Erect appropriate barriers to prevent entry by non-fireproofing workers into the fireproofing spray and mixing areas and other areas exposed to wet fireproofing material.
		B.	Prior to application of the fireproofing, apply a discontinuous textured spray of Spatterkote SK-3 to the bottom of all flat plate cellular steel floor units and to roof deck assemblies as necessary to meet the fire resistance ratings.
	3.4	FIELD QUALITY CONTROL
		A.	At the Owner's expense, the Architect will select an independent testing laboratory to randomly sample and verify the thickness and the density of the fireproofing in accordance with provisions of ASTM E 605, or the "Inspection Procedure for Field-applied Sprayed Fire Protection Materials" as published by the Association of Wall and Ceiling Contractors International (AWCI), or the Uniform Building Code Standard No. 7-6. Where density samples are of irregular shape, a displacement method approved by Underwriters Laboratories Inc. will be used to determine in-place fireproofing density.
		B.	At the Owner's expense, the Architect will select an independent testing laboratory to randomly sample and verify the bond strength of the fireproofing in accordance with provisions of ASTM E736.
		C.	The results of the above tests shall be made available to all parties at the completion of pre-designated areas determined during the pre-job conference.
	3.5	CLEANING
		A.	After the completion of fireproofing work, application equipment shall be removed.
		B.	Except where otherwise specified, floors will be left in a scraped condition.
	3.6	PATCHING
		A.	Patching or repair spray applied fireproofing using the same materials under this section.
	3.7	FIRE RATING SCHEDULE
	** NOTE TO SPECIFIER ** Insert Hourly Rating and UL reference number as listed in the Current UL Fire Resistance Directory.
		A.	Columns: ___ Hour, UL Reference No. ______.
		B.	Floor Decks: ___ Hour, UL Reference No. ______.
		C.	Floor Supports: ___ Hour, UL Reference No. ______.
		D.	Roof Decks: ___ Hour, UL Reference No. ______.
		E.	Roof Supports___ Hour, UL Reference No. ______.
	** NOTE TO SPECIFIER ** Select whether the system is restrained or unrestrained. Delete one of the next two paragraphs.
		F.	Restrained
		G.	Unrestrained
	END OF SECTION