SECTION 07 81 23

APPLIED INTUMESCENT MASTIC FIREPROOFING 

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PART  1	  GENERAL
1.1 		SUMMARY
A.	 	Section Includes 
1.		Spray-Applied Thin-Film, Intumescent Fire-Resistive Material (TFIFRM) for interior structural steel applications.
2.	 	Basecoat (steel primer).
3.	 	Protective decorative top coat (optional).
B.	 	Related Sections
1.		Structural steel (05 10 00)
2.		Structural steel and metal fabrications with reference to primer receiving fire protection materials (05 12 00 – 05 50 00)
3.	 	Applied Fireproofing (07 81 00)
4.		Painting (09 90 00)
1.2 		REFERENCES
A.		American National Standards Institute (ANSI):
1.		ANSI/UL 263 -  Fire Tests of Building Construction and Materials.
2.		ANSI/UL 723 -  Surface Burning Characteristics of Building Materials.
B.		American Society for Testing and Materials(ASTM):
1.		ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
2.		ASTM E 119 - Standard Test Methods for Fire Tests of Building Construction and Materials.
C.		International Code Council (ICC):
1.		International Building Code (IBC).
2.		International Fire Code (IFC).
D.		National Fire Protection Association (NFPA):
1.		NFPA 101 - Life Safety Code.
2.	 	NFPA 5000 – Building Construction and Safety Code.
E.		Underwriters Laboratories (UL) - UL Building Materials Directory:
1.		Mastics and Intumescent Coatings (CDWZ).
2.	 	Fire Resistance Ratings – ANSI/UL 263 (BXUV).
3.	 	UL Qualified Spray-Applied Fire-Resistive Materials Contractor Program.
F.	 	Underwriters Laboratories of Canada (ULC):
1.		List of Equipment and Materials.
2.		CAN/ULC-S101M, Standard Methods of Fire Endurance Tests of Building Construction and Materials.
3.	 	CAN/ULC-S102, Standard Methods of Test for Surface Burning Characteristics of Building Materials and Assemblies.
G.		Association of the Wall and Ceiling Industries - International (AWCI): 	
1.		AWCI Technical Manual 12-B, Standard Practice for the Testing and Inspection of Field Applied Thin-Film Intumescent Fire-Resistive Materials; an Annotated Guide.
1.3 	H.  	American Institute of Steel Construction (AISC): Steel Construction Manual; Thirteenth Edition.	PERFORMANCE REQUIREMENTS
A.		Provide systems that are listed by at least one the following:
1.		Underwriters Laboratories Inc. (UL), in "Fire Resistance Directory".
2.		Any other qualified independent testing and inspection agency that conducts periodic follow-up inspections and is acceptable to authorities having jurisdiction.
B.		Provide fiberless, spray-applied, thin-film, intumescent fire-resistive material (TFIFRM) product for fireproofing interior structural steel.
C.		Provide products with the appropriate flame spread index and smoke develop index, when tested in accordance with ASTM E 84.
D.		Provide products identical to those tested and listed for classification by UL, ULC, Intertek or any other qualified independent testing agency.
E.		Provide products that bear classification marking of qualified independent testing agency.
F.		Where intumescent TFIFRM systems not listed by any listing agency are required due to project conditions, submit a substitution proposal with evidence specified.
G.		Use only products specifically approved for use in listed systems.
H.		Intumescent TFIFRM fireproofing materials must meet and be acceptable for use by all applicable codes cited in this section.
I.	 	Provide products that meet the intent of the state or local and LEED ® guidelines on volatile organic compounds (VOC).
J.	 	Provide products that meet the criteria of UL 263 (ASTM E 119) and CAN/ULC-S101M) Standard Fire Tests of Building Construction and Materials.

1.4 	THIRD-PARTY LISTINGS
A.		Columns: (Specify 1- or 2-hour) in accordance with:
1.		UL Design Listings (Category BXUV): Y601, Y602, Y603, Y604, Y605, Y621
2.	 	ULC Design Listings (Category BXUV7): Z329, Z640, Z641, Z642, Z643, Z646 
B.		Beams: (Specify 1- or 2-hour) in accordance with:
1.		UL Design Listing (Category BXUV): N626
2.	 	ULC Design Listing (Category BXUV7): N626
C.		Floor Assemblies: (Specify 1- or 2-hour) in accordance with:
1.		UL Design Listing (Category BXUV): D972
2.	 	ULC Design Listing (Category BXUV7): D972

1.5 	SUBMITTALS
A.		Submit under provisions of the Contract and Division 01 – General Requirements.
B.		Shop Drawings:  For each TFIFRM fireproofing system, provide the following:
1.		Listing agency's detailed drawing showing specified structural steel to be protected and fireproofing materials, identified with listing agency's name and number or designation and fire rating achieved. 
2.		For proposed systems that do not conform strictly to the listing, submit written instructions showing modifications and approved by fireproofing system manufacturer.
3.	 	Submit under provisions of the International Building Code (IBC) section 704 requiring a submittal package for fire-resistance ratings and fire.
C.		Product Certificates:  Submit certificates of conformance signed by TFIFRM fireproofing system manufacturer.
D.		Product Data:  Furnish manufacturer's product data sheets on each material to be used in fireproofing systems.  Information on manufacturer's product data sheet should include:
1.		Product characteristics including compliance with appropriate ASTM/UL/ANSI test standards.
2.		Storage and handling requirements and recommendations.
E.		Installation Instruction:  Furnish manufacturer's installation guidelines.
F.	 	Sustainable or LEED Submittals:
1.	 	VOC Content (less than 5 g/l):  For intumescent TFIFRM material and for compatible steel primer and topcoat(s) (if applicable), furnish documentation of VOC content.
1.6 		QUALITY ASSURANCE
A.		General:  All structural steel fireproofing systems shall be installed with approved methods using materials that have been tested and classified to produce an approved assembly.
B.		Manufacturer Qualifications:   All primary TFIFRM fire resistive products specified in this section will be supplied by a single manufacturer with a minimum of twenty five (25) years experience in passive fire protection. 
1.	 	Products shall be manufactured in a certified ISO 9001 facility.
2.		Products shall have undergone a formal life cycle assessment evaluating environmental impact.
3.		Structural steel primer and (optional) topcoat products must be approved for use with primary intumescent TFIFRM product.
C.		Installer Qualifications:  Firm must be qualified by having experience, staff, and be properly trained to install the specified products, and meets the following criteria:
1.		Contractor is a Certified 3M Trained IC Applicator.
2.		Contractor is acceptable to manufacturer.
3.		Contractor is acceptable to Authority Having Jurisdiction (AHJ).
4.		Contractor has completed the manufacturer's certified TFIFRM product installation training.
5.		Contractor must provide a list of completed projects as evidence of experience; include project name and address, owner's name and address, and architect's name and phone number.
6.		Certificate:  Contractor should provide certificate of qualification.
D.		Codes:  Where manufacturer's application procedures are in conflict with those of the local Authority Having Jurisdiction, the more strict guidelines will prevail.
E.		Pre-installation Meetings:  Installer, general contractor and any other affected trades to meet and to agree on structural steel fireproofing requirements, conditions and sequence of work.
1.7 		DELIVERY, STORAGE, AND HANDLING
A.		Deliver and store products until ready for installation in manufacturer's original unopened packaging, legibly marked with manufacturer's name and product identification, date of manufacture, lot number, listing agency's classification marking, curing/dry time, and mixing instructions (if applicable) and MSDS reference number.
B.		Store and handle in such a manner as to prevent deterioration or damage due to moisture, temperature changes, contaminants, and other causes; follow manufacturer's guidelines on product data sheet.
C.		Consult manufacturer’s material safety data sheet (MSDS) for storage, handling and disposal guidelines.
1.8 		PROJECT CONDITIONS
A.		Coordinate construction and surface preparation so that each particular TFIFRM fireproof system may be installed in accordance with its listing, including steel type, size, weight-to-heated perimeter ratio (area/perimeter), application temperature range, application humidity range, compatible primer and compatible (optional) topcoat .
B.		Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results.  Do not install intumescent TFIFRM fireproofing under environmental conditions outside manufacturer's absolute limits.
C.		Provide ventilation as required by intumescent TFIFRM manufacturer, compatible primer manufacturer and compatible (optional) topcoat manufacturer including mechanical ventilation if required.
1.9 		WARRANTY
A.		At project closeout, provide to Owner or Owner’s Representative an executed copy of the manufacturer's standard limited warranty against manufacturing defect, outlining its terms, conditions, and exclusions from coverage.
PART  2	  PRODUCTS
2.1 		MANUFACTURERS
A.		Acceptable Manufacturer: 3M Fire Protection Products, which is located at: 3M Center Bldg. 223-2N-21 ; St. Paul, MN 55144-1000; Toll Free Tel: 800-328-1687; Email: request info (firetech1@mmm.com); Web1: www.3m.com/fireproof; Web2: www.3m.com/firestop
B.		Requests for substitutions will be considered in accordance with provisions of Division 1- General Requirements.
C.		Single Source:  To maintain control and integrity of the intumescent TFIFRM fireproof applications a single manufacturer should be used.  Specific UL or approved listing agencies systems applicable to each type of interior TFIFRM fireproof condition should be supplied by one manufacturer. 
2.2 		SCOPE/APPLICATION
A.		Provide installed intumescent TFIFRM product for specified structural steel.
B.		Install intumescent TFIFRM per systems listed for the specific combination of fire rating duration, type of structural steel, type of construction (e.g. restrained or unrestrained) and the following criteria:
1.		Testing: Provide ratings from listed systems tested in accordance with UL 263 (ASTM E119) and/or CAN/ULC-S101M.
2.3 		SPRAY-APPLIED INTUMESCENT FIREPROOFING PRODUCTS FOR STRUCTURAL STEEL
A.		3M FireDam Intumescent Coating WB 1000: Single-component, water-based, thin-film coating used to fireproof interior structural steel.		
1.	 	Fire Resistance: For use in up to 2-hour fire-rated systems.
2.		Locations:  Structural steel; Interior General Purpose or Conditioned Interior Space Purpose.

PART  3	  EXECUTION
3.1 		EXAMINATION
A.		Do not begin installation until substrates have been properly prepared. 
B.	 	Verify that TFIFRM material to be installed is within manufacturer’s specified shelf life.
C.		Conduct tests according to manufacturer's written recommendations to verify that substrates are free of oil, grease, rolling compounds, incompatible primers, loose mill scale, dirt and other foreign substances capable of impairing bond of intumescent TFIFRM material. Ensure that substrate is frost-free. Verify that all structural steel to be protected with intumescent TFIFRM material is free from rust and has been primed with a compatible primer. 
D.		Verify that adjoining surfaces and floors have been masked, tarped or otherwise protected.
E.		Verify equipment, ensure minimum pump requirements and tip size (0.7 GPM, 3000psi, 1.7 hp, 0.015" – 0.021" tip).
F.		Verify that environmental conditions are safe and suitable for installation of intumescent TFIFRM.
G.		If substrate preparation is the responsibility of another installer, notify Architect or Engineer of Record of any unsatisfactory preparation before proceeding.
H.		Report and, when possible, remedy any defects or conditions which may affect the work of this section.
3.2 		PREPARATION
A.		Prepare substrates in accordance with manufacturer's instructions and recommendations.
B.	 	Verify that all structural steel to be fireproofed with intumescent TFIFRM is free from rust and has been primed with a compatible primer.
C.		Install masking and temporary coverings as required to prevent contamination or defacement of adjacent surfaces due to intumescent TFIFRM fireproofing  installation.
3.3 		INSTALLATION
A.		Install in strict accordance with manufacturer's detailed installation instructions and procedures.
B.		Install such that all specified structural steel requiring fire protection is completely coated with intumescent TFIFRM fireproofing material. Verify proper wet film thickness per coat and overall dry film thickness of TFIFRM required per listed system details. Verify proper dry-time between application of TFIFRM coats. 
C.		After installation is complete, remove masking and/or tarp materials and accessories that are not part of the listed system.
D.		Repair or replace defective installations in accordance with manufacturer’s recommendations, listed systems details and applicable code requirements.
E.		Clean intumescent TFIFRM fireproofing materials off adjacent non-specified surfaces as work progresses, using methods and cleaning materials approved in writing by intumescent TFIFRM fireproofing system manufacturer and which will not damage the surfaces being cleaned.
F.		Notify Authority Having Jurisdiction (AHJ) when intumescent TFIFRM fireproofing installation is ready for inspection; obtain advance approval of anticipated inspection dates and phasing, if any, required to allow subsequent construction to proceed.
a)		Verfiy correct overall dry film thickness of intumescent TFIFRM fireproofing has been applied for each type of structural steel per listed system details.
b)		Verify that appropriate inspection(s) of dry intumescent TFIFRM material have been conducted prior to application of an approved (optional) topcoat.
G.		Do not cover intumescent TFIFRM fireproofing with other construction and/or materials until approval of authority having jurisdiction has been received. Do not cover intumescent TFIFRM fireproofing material with other fireproofing materials.
3.4 		FIELD QUALITY CONTROL
A.		Prior to installation of product, applicator shall apply intumescent TFIFRM fireproofing to an interior structural steel section witnessed by the architect and/or owner and/or owner’s representative. This mockup application shall be in accordance with system details and subject to architect and/or owner and/or owner’s representative’s approval. This mockup application shall be used as a guide for project TFIFRM installations. 
B.		Owner will engage Authority Having Jurisdiction (AHJ) to determine field inspection procedures and which party will perform the field inspection (e.g. AHJ or a designated independent third-party testing agency).
C.		Notify testing agency at least 7 days prior to date when intumescent TFIFRM fireproofing installation will be ready for inspection; obtain advance approval of general schedule and phasing, if any, required to allow subsequent construction to proceed.
D.	 	Upon completion of installation, contractor shall provide the building owner or owner’s representative with “As-Built” prints that indicate any construction deviation(s).
3.5 		CLEANING AND PROTECTION
A.		Remove left over material and debris from work area.  Use necessary means to protect fire protection product(s) before, during, and after installation.
B.		Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION