SPECIFICATION SECTION 07800

THIN FILM INTUMESCENT FIRE RESISTIVE COATING FOR STRUCTURAL STEEL

1 GENERAL


1.1 SECTION INCLUDES


1.1.1 Thin-film Intumescent fire resistive coating.

1.1.2 Basecoat (where required)
1.1.3 Protective decorative top coat.

1.2 RELATED SECTIONS


1.2.1  Construction Facilities and Temporary Controls: Division (-) Temporary heat, ventilation, hoisting and power, utilities, protection.
1.2.2  Structural Steel: Division (-) Structural steel section for steel substrates.
1.2.3  Fireproofing: Division (-) Fireproofing Section (s) for applied and board fireproofing.
1.2.4  Firestopping and Smoke Seals: Division (-) Firestopping and Smoke seals sections.

1.3. REFERENCES

 

A. American Society for Testing and Materials (ASTM):

  1. ASTM E 119, Standard Methods for Fire Tests of Building Construction and Materials.

  2. ASTM D2240, Standard Test Method for Rubber Property - Durometer Hardness.

  3. ASTM D2794, Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact).

  4. ASTM D3960, Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings.

  5. ASTM D4060, Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abrader.

  6. ASTM E84, Standard Test Method for Surface Burning Characteristics of Building Materials.

  7. ASTM E595,  Standard test Method for Total Mass Loss and Collected Volatile Condensable Materials from Out-gassing in a vacuum Environment.

  8. ASTM E736,  Standard test method for Cohesion/Adhesion of Sprayed Fire-Resistive Materials Applied to Structural Members.

  9. ASTM E759, Standard test method for Effect of Deflection on Sprayed Fire-Resistive Materials Applied to Structural Members.

  10. ASTM E761, Standard test method for Compressive Strength of Sprayed Fire-Resistive Materials Applied to Structural Members.

B. 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.

C. Intertek Testing Services / Warnock Hersey International, Inc. (ITS/WH):

  1. Directory of Listed Products, current edition.

D. Underwriters' Laboratories of Canada (ULC):

  1. List of Equipment and Materials, Fire Resistance, current edition.

  2. CAN/ULC-S101-M89, Standard Methods of Fire Endurance Tests of Building Construction and Materials.


1.4 SYSTEM DESCRIPTION

 

1.4.1. Thin-film intumescent fire-resistive coating system shall provide a fire resistance rating:

 

   A. Columns: (Specify) hours for columns, in accordance with the following:

  1. [ITS/WH No. [specify number] or [ULC No. [specify number]]

  2. [specify others]

  3. ITS/WH Design No.'s: AD/CA 90-02, AD/CA 120-02, AD/CA 120-03, AD/CA 120-04, AD/CA 180-01 and AD/CA 180-02.

  4. ULC Design No.'s: Z608, Z609, Z610, Z611, Z612, Z616 and Z617.

   B. Beams: (Floor/Ceiling Design with unprotected deck): [Specify] hours for beams and/or floor assembly in accordance with the following:

  1. [ITS/WH No. [specify number]] or [ULC No. [specify number]].

  2. ITS/WH Design No.: AD/FCA 120-01.

  3. ULC Design No.'s: F906 and F910. 


1.5 SUBMITTALS

  1. General: Submit listed submittals in accordance with conditions of the contract and Division [-] Submittal Procedures Section.

  2. Product Data: Submit product data including manufacturer's Spec Data sheet, for specified products Include product data indicating product characteristics, performance and limitation criteria.

  3. Quality Assurance Submittals: Submit the following:

  1. [specify] [ITS/WH] [ULC] published test designs for fire resistive coating application to substrate materials required and test reports showing compliance with specified physical performance characteristics and physical properties. 

  2. Manufacturer's Instructions: Manufacturer's installation instructions.

 

1.6. QUALITY ASSURANCE


1.6.1 Manufacturer: 

  1. Company specializing in manufacturing products of this section for a minimum of 10 years.

  2. Company's quality management system shall have been assessed and registered by an independent registrar as conforming to the requirements of the standard ISO 9001:1994.


1.6.2 Applicator (Installer): 

  1. Applicator: [Approved, certified and/or supervised by manufacturer of fire resistive coating materials] [Company with minimum [specify.] years [documented] experience].


1.6.3 Product Qualifications: 

  1. Manufactured under ULC and/or ITS/WH Follow-up Programs. Each container or package shall bear ULC and/or ITS/WH label.


1.6.4 Field Inspection: 

  1. An independent testing laboratory/company shall be selected by the [owner] [architect] [or engineer] to test random samples as applied, to verify thickness of thin-film intumescent fire-resistive coating in accordance with AWCI Technical Manual 12-B, Standard Practice for the Testing and Inspection of Field Applied Thin-Film Intumescent Fire Resistive Materials; an Annotated Guide. Inspection shall be carried out immediately following final thickness of A/D FIREFILM®II and just before application of A/D COLORCOAT® topcoat.


1.6.5 Regulatory Requirements: [Specify specific requirements of regulatory agencies.].

  1. Conform to applicable [specify.] code for [specify.] fire resistance ratings.
    Submit certification of acceptability of fire resistive coating materials to [authority having jurisdiction] [agency].



1.7 DELIVERY, STORAGE AND HANDLING

 

1.7.1. General: Comply with Division 1 Product Requirements Sections.

1.7.2. Delivery: Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels intact. Ship, store and deliver at temperatures not less than 50°F (10°C); protect from freezing! 

1.7.3. Storage and Protection: Store materials protected from exposure to harmful weather conditions and at temperature and humidity conditions recommended by manufacturer.

  1. Store materials at a temperature not less than 50 degrees F (10 degrees C) in a dry, protected area, off ground in original, undamaged, sealed containers with manufacturer' s labels and seals intact.

  2. Protect from freezing. 

  3. Do not store in direct sunlight.

  4. Check freeze-watch indicators before accepting delivery of A/D FIREFILM®II and/or A/D BASECOAT.

  5. Discard  any materials that have come into contact with contaminants prior to actual use.

  6. Check "Freeze-Watch" indicators before accepting delivery of A/D FIREFILM®II.

  7. Discard any materials which have come into contact with contaminants prior to actual use.

1.8 PROJECT/SITE CONDITIONS

 

Specifier note: A/D FIREFILM®II and A/D BASECOAT are sensitive to moisture and must be protected from moisture during the entire application and drying period, until completely dried and top coated with A/D COLORCOAT. Ambient air and steel temperatures must not be less than 50 degrees F (10 degrees C). High humidity at the site will hinder drying and recoat/top coat times. A/D FIREFILM®II and A/D BASECOAT must be dry before recoating and/or top coating. Inadequate drying between coats or application during high humidity conditions can cause softening of previous coats and/or delamination. Relative humidity of 40 - 60 % in the work area is recommended. Temporary enclosures, heat and moisture control may be required to maintain acceptable conditions. Electric heat is recommended where supplemental heat is required. Industrial dehumidifiers are recommended to control humidity. A source of dehumidifiers / heaters is Munters Moisture Control Services, (800) I-CAN-DRY, (508) 388-4900. Air movement and thinner coats will assist drying.  

 

1.8.1. Environmental Requirements/Conditions: Substrate and ambient air temperature shall be in accordance with manufacturer's requirements.

  1. Protect work area from windblown dust and rain. Protect adjacent areas from over spray.

  2. Provide ventilation in areas to receive work of this section, during application and 24 hours (minimum) after application.

1.8.2. Temperature and Humidity Requirements: Maintain air temperature and relative humidity  in spaces where products will be installed for a time period before, during and after installation as recommended by manufacturer.

  1. Do not apply thin-film intumescent fire-resistive coating  when temperature of substrate and/or surrounding air is below 50°F (10°C). Use electric heat if supplemental heat is required.

  2. Relative humidity of 40% to 60% is recommended in work area. Relative humidity in work area must not exceed 75% throughout the total period of application and drying for the intumescent fireproofing, and must not exceed 65% throughout the application and drying for the protective decorative finish coat. 

  3. Manufacturer's recommended temperature and humidity conditions must be maintained throughout the entire application and drying period until intumescent coating and basecoat (if required) are fully dried and top coated, including any interim period prior to application of the top coat.


1.9 SEQUENCING AND SCHEDULING

 

1.9.1. Sequencing: Sequence work in conjunction with [ceiling hanger tabs,], [sprinkler pipes], [HVAC systems and other mechanical systems] [and] [specify other sequence requirements.].

1.9.2. Do not apply thin-film intumescent fire-resistive coating until concrete toppings and/or roofing applications have been installed.

1.9.3. Steel surfaces with less than 3 feet (1 meter) clear working access may necessitate the application of materials to inaccessible surfaces prior to erection of the finished steel members, either at the point of fabrication or on-site.

 

2. PRODUCTS


2.1 Thin-Film Intumescent Fire-Resistive Coating

 

2.1.1. Manufacturer: A/D Fire Protection Systems.

  1. Contact: 420 Tapscott Rd., Scarborough, Ontario M1B 1Y4; Telephone: (800) 263-4087 or (416) 292-2361; Fax: (416) 298-5887; www.adfire.com

  2. Representative Contact: [specify representative contact information.].

Specifier Note: A/D FIREFILM II is a decorative thin-film fire-resistive coating for structural steel at interior locations in buildings. A/D FIREFILM II is a water based intumescent coating. During a fire, it expands to form a meringue-like insulating ash which protects steel from fire. A/D BASECOAT is a water based non-intumescent coating required for certain applications. A/D COLORCOAT is a low volatile organic compound (VOC) silicone alkyd coating and the required top coat for A/D FIREFILM II> It is available in most colors in gloss and semi gloss finishes. When spray applied (recommended), finish should be smooth to slight orange peel. Texture will vary with application technique. 

 

  

2.1.2. Proprietary Product (s)/System (s): A/D FIREFILM®II Intumescent Coating, A/D BASECOAT and    A/D COLORCOAT.

 

Specifier Note: A/D FIREFILM®II is intended for use at interior locations in buildings. A/D FIREFILM®II is water based. Typical of alkyd coatings, yellowing of white A/D COLORCOAT can occur. Where color retention is critical, contact manufacturer for recommendations.

 

  1. Primer: Select primer from manufacturer's list of approved primers , or other only as approved by A/D FIRE Protection Systems.

  2. Basecoat: A/D BASECOAT by A/D Fire Protection Systems (for use in conjunction with ITS/WH Designs AD/CA 120-02 and AD/CA 180-02 and ULC Designs Z609 and Z616).

  3. Top Coat: A/D COLORCOAT by A/D Fire Protection Systems.

  4. Product (s)/Systems (s) Testing: [Listed by ITS/WH and bearing ITS/WH label] [Listed by ULC and bearing the ULC label].

 

2.2 MATERIALS

 

2.2.1. Fire Resistive  Coating Material: Thin-film, intumescent coating:  A/D FIREFILM®II as manufactured by A/D Fire Protection Systems [listed by ITS/WH and bearing ITS/WH label] [listed by ULC and bearing ULC label] on each container or package.

  1. Water based.

  2. Hardness (Shore "D"): Durometer D81.8, creep 1 at 15 s, 230 degrees C.

  3. Surface Burning Characteristics (ASTM E84): Flame Spread: 0 -20, Smoke Development: 0-50, Class "A".

  4. Density 1,366 g/l

  5. Dry Weight: 0.46 lb/ft2 (2.2 kg/m2) at 65 mil (1.6 mm) dry.

  6. Cohesion / Adhesion (Bond or Tensile) (ASTM 736): 10,886lbf/ft2 (3.24 kgm2) at 120 mil (3 mm) dry.

  7. Compressive strength (ASTM E761): 157,680, lbf/ft2 (7.6 MPa) at 10 % deformation. 

  8. Deflection Resistance (ASTM E759): Pass with out spalling, cracking or delaminating.

  9. Impact Resistance (ASTM D2794): 286 in-lb (3.3 kg-m)(direct) at 120 mil (3 mm), 123 in-lb (1.4 kg-m) (direct) with A/D COLORCOAT over A/D FIREFILM®II at 65 mil (1.6 mm). 

  10. Abrasion Resistance (ASTM D4060): 508 cycles per mil at 65 mil (1.6 mm) dry

  11. Off gassing (ASTM E595): TML 0.82, CVCM 0.00, WVR 0.49), NASA SP-R-0022A and ESA PSS-01-702.

2.3 MIXING

 

2.3.1. A/D FIREFILM®II and A/D BASECOAT are shipped pre-mixed from the factory. Mix gently in order to minimize introduction of air to the product. Do not add water or solvent.

2.3.2. Mix A/D COLORCOAT by boxing and stirring. Do not add water or solvent.


3. EXECUTION

 

 

3.1 Manufacturer's Instructions

 

3.1.1. Compliance: Comply with manufacturer's product data, including technical bulletins, product catalogue, application instructions and product markings for installation.

 

3.2. EXAMINATION

 

3.2.1. Site Verification of Conditions:

  1. Examine surfaces to receive work of this Section and report any defects which may affect the work of this section. Identification marking of steel components must be by wax crayon to facilitate ease of removal prior to application of this intumescent fireproofing.

  2. Verify that substrate surfaces are ready to receive work. Commercial Blast Cleaning (SSPC-SP6/NACE No.3) is recommended for minimum surface preparation. Weld flashes should be ground smooth prior to commencement of application.

  3. Verify that all clips, hangers, sleeves and similar devices have been attached.
    Confirm compatibility of surfaces to receive fireproofing materials. Steel surfaces must be primed with a compatible primer - see 2.1.B.

  4. Beginning of installation means acceptance of (existing surfaces) (substrate).

  5. Verify substrate and work space temperature and humidity conditions are in accordance with manufacturer's recommendations - see 1.8. 

 

3.3 PREPARATION

 

3.3.1. Adjacent Surfaces Protection: Protect adjacent surfaces, work areas, finish surfaces and equipment from over-spray/damage during product application. 

3.3.2. Surface Preparation: Clean substrate free of dust, dirt, grease or other foreign matter which would impair bond of fire resistance material.

  1. Comply with Commercial Blast Cleaning (NACE No. 3 / SSPC SP6) for minimum surface   preparation.

  2.  Weld flashes shall be ground smooth prior to commencement of application.


3.4 INSTALLATION

 

3.4.1. General:  Apply A/D FIREFILM®II and A/D BASECOAT in accordance with manufacturer's instructions in sufficient thickness to achieve required fire resistance rating. Spray application is recommended. A/D BASECOAT is to be applied by spray only. Apply A/D Colorcoat decorative finish according to manufacturer's recommendations.

3.4.2. Priming: Apply A/D FIREFILM®II and A/D BASECOAT only to primed surfaces. Use only primer as approved by A/D Fire Protection Systems. Follow primer manufacturer's instructions.

3.4.3. Application Rates and Thickness Measurements: 

  1. Comply with fire test designs or A/D FIREFILM®II thickness selection tables for determination of dry film thickness of A/D FIREFILM®II and A/D BASECOAT (where required) required for size of steel element to be protected and for required fire resistance rating (s). Apply A/D COLORCOAT top coat.

  2. Apply A/D FIREFILM®II at a maximum rate of 30 mil (0.76 mm) wet or approximately 23 mil (0.58 mm) dry per coat. Apply A/D BASECOAT at a maximum rate off 60 mil wet per coat.

  3.  Final dry film thicknesses must be measured with a dry-film thickness gauge. Do not apply A/D COLORCOAT until it has been determined that the required dry film thickness of A/D FIREFILM®II and A/D BASECOAT (where required) have been provided. For method of thickness determination refer to AWCI Technical Manual 12-B, Standard Practice for the Testing and Inspection of Field Applied Thin-Film Intumescent Fire-Resistive Materials; an Annotated Guide. 

3.4.4. Application: 

  1. Spray Equipment: Use spray application for best coverage, finish and appearance. For A/D FIREFILM®II, use an airless sprayer capable of 3000 psi pressure, minimum, without surging. For A/D BASECOAT, use sprayer capable of 4000 psi pressure, minimum, without surging. Remove all filters except pump filter. For A/D FIREFILM®II use a 3/17 to 4/23 size, heavy duty type, self-cleaning (reversible) tip. For A/D BASECOAT, use a 23 mil (0.58 mm) tip. Adjust pressure and distance between tip and surface to minimize orange peel. Adjust fan width to minimize over spray. Use a 15 mil (0.38 mm) tip for A/D COLORCOAT.

Specifier Note: Due to the relatively high solids content, it can be difficult to attain high builds and/or a smooth finish when applying A/D FIREFILM®II by brush or roller. High points can be removed with a paint scraper or utility blade. Low points can be filled and the finish smoothed by applying A/D FIREFILM®II with a drywall knife or trowel. A putty grade is available for this purpose. 

  1. Hand Application: Use a brush recommended for use with latex paint and a low pile roller to apply A/D FIREFILM®II .Use a China bristle brush or roller to apply A/D COLORCOAT. Apply A/D BASECOAT by spray only.

Specifier Note: A/D FIREFILM®II and A/D BASECOAT have been formulated to dry quickly. A viscosity increase will be experienced after a pail is opened. Keep pail covered as much as possible during the application process to minimize evaporation.

  1. Handling: When applying  ff by brush or roller, work from a small container, mixing frequently. Keep original pail tightly closed with the surface of the material covered by the plastic sheet provided.

  2. Drying and Recoat Time: Drying time will vary with temperature and humidity conditions. Apply next coat of ff or A/D BASECOAT only after previous coat is dry.

3.4.5. A/D COLORCOAT Application:

  1. A minimum of 24 hours is recommended between application of the final coat of A/D FIREFILM®II and application of A/D COLORCOAT. Recommended Site Conditions (see 1.8) must be maintained for any interim period after final coat of A/D FIREFILM®II and until A/D COLORCOAT has been applied and dried. A/D FIREFILM®II must be dry before application of A/D COLORCOAT. Do not apply  until it has been determined that the required dry film thickness of A/D FIREFILM®II has been provided.

  2. Thickness; Apply A/D COLORCOAT to a minimum dry film thickness of 2 - 4 mil (0.05 - 0.10 mm).

3.4.6. Patching: Patch and repair any fire resistive coating that has been damaged in accordance with patching recommendations of material manufacturer. If coating becomes damaged, rebuild thickness by spray or brush. Fill small areas with trowel. When dry, smooth and finish with A/D COLORCOAT to match.

 

 

3.5 CLEANING

 

3.5.1. Cleaning: Remove temporary coverings and protection of adjacent work areas. Repair or replace damaged installed products. Clean installed products in accordance with manufacturer's instructions. Remove and legally dispose of construction debris.

 

3.6 PROTECTION

 

3.6.1. Protection: Protect installed product and finish surfaces from damage during construction.

 

This page was updated November 13, 2000